Tokushima University / Educator and Researcher Directory --- Ichikawa, Tetsuo

Personal Web Page

https://researchmap.jp/read0017482 (researchmap)

Field of Study

○	Prosthodontics

Subject of Study

○	顎口腔機能回復と維持に関する研究 (implant, 音声, 摂食·嚥下, 高齢者)

Book / Paper

Book:

1.	Megumi Watanabe and Tetsuo Ichikawa : 咀嚼関連検査評価と検査の使い分けは?, Jan. 2024.
2.	Takaharu Goto and Tetsuo Ichikawa : Part 6 力への対応-どう判断し，どう対応したのか-．歯の喪失率の年代変化から探る力の問題, Ishiyaku Publishers,Inc., Jan. 2024.
3.	Tetsuo Ichikawa, Takaharu Goto and Yuki Iwawaki : Part 5 力を診査，診断する．生体に危険な力を理解し，治療に生かす, Ishiyaku Publishers,Inc., Jan. 2024.
4.	Tetsuo Ichikawa : よくわかる高齢者歯科学, 永末書店, Tokyo, Feb. 2023.
5.	Megumi Watanabe and Tetsuo Ichikawa : 歯の欠損への対応, 永末書店, Feb. 2023.
6.	Tetsuo Ichikawa and 噛むことと認知症の関係はありますか? 口のエクスサイズのプログラムはありますか? : ?, 口腔保健協会, 東京, Dec. 2022.
7.	Megumi Watanabe and Tetsuo Ichikawa : Q通常の運動にはエクササイズプログラムというものがありますが，口のエクササイズのプログラムはありませんか?, 一般財団法人口腔保健協会, Dec. 2022.
8.	Takaharu Goto and Tetsuo Ichikawa : 咀嚼の本3―噛むことの大切さを再認識しよう―, 口腔保健協会, Dec. 2022.
9.	Tetsuo Ichikawa and Takaharu Goto : 2章人体の構造と機能 6)口の構造と機能, Sep. 2022.
10.	Tetsuo Ichikawa : 無歯顎補綴治療学第4版, Ishiyaku Publishers,Inc., Tokyo, Feb. 2022.
11.	Tetsuo Ichikawa, Kouhei Kamoi, Takahiro Kishimoto and Takaharu Goto : 咬合面再形成の過去から未来へ―デジタル技術を用いた咬合面再形成法がもたらす義歯の長期的維持―, Ishiyaku Publishers,Inc., Tokyo, Jan. 2022.
12.	Takaharu Goto and Tetsuo Ichikawa : 第Ⅶ章スピーチの検査 CASE F パラとグラフィーを用いて構音障害に対応した症例, 永末書店, Kyoto, Jun. 2021.
13.	Tetsuo Ichikawa : 補綴は検査でかわる!, 永末書店, Kyoto, Jun. 2021.
14.	Tetsuo Ichikawa and Kan Nagao : 有床義歯補綴学, 永末書店, Jan. 2021.
15.	Tetsuo Ichikawa, Takahiro Kishimoto and Takaharu Goto : 歯科におけるSpeechを再認識する:「発声・発語・構音」から「Speech」への転換．4 Speechの機能を利用した補綴歯科治療, Aug. 2020.
16.	Tetsuo Ichikawa and Takaharu Goto : 高齢者の状態に合わせた義歯・補綴治療―フレイル,長期入院後,麻痺,認知症,在宅療養患者の口腔機能改善― 第3章フレイル患者への義歯・補綴治療の考え方, Ishiyaku Publishers,Inc., Tokyo, Jul. 2020.
17.	Megumi Watanabe and Tetsuo Ichikawa : 骨質，インプラントのデザイン，および外科的テクニックによるインプラントの初期固定への影響, Feb. 2020.
18.	Tetsuo Ichikawa and Megumi Watanabe : 総義歯の咬合様式と接触状態, Oct. 2019.
19.	Tetsuo Ichikawa : 歯科医院で認知症の患者さんに対応するための本, Ishiyaku Publishers,Inc., Tokyo, Sep. 2019.
20.	Tetsuo Ichikawa : 認知症の人への歯科治療ガイドライン, Ishiyaku Publishers,Inc., Tokyo, Jun. 2019.
21.	Tetsuo Ichikawa : 日本補綴歯科学会編お口のトラブル解決します, Ishiyaku Publishers,Inc., Tokyo, May 2019.
22.	Tetsuo Ichikawa : 義歯ケア事典, 永末書店, 京都, Sep. 2018.
23.	Tetsuo Ichikawa and Megumi Watanabe : 局部床義歯(部分床義歯)の支持，把持，維持の考え方, Aug. 2018.
24.	Tetsuo Ichikawa : 歯学生のパーシャルデンチャー第6版, Ishiyaku Publishers,Inc., Tokyo, Aug. 2018.
25.	Yuichi Ishida and Tetsuo Ichikawa : 1-3 7義歯のメインテナンスとケア, インターアクション株式会社, Mar. 2018.
26.	Tetsuo Ichikawa : 患者さんのエイジングに備える高齢者への歯周治療と口腔管理, インターアクション, 東京, Mar. 2018.
27.	Megumi Watanabe and Tetsuo Ichikawa : 歯の欠損への対応, Jan. 2018.
28.	Tetsuo Ichikawa : -, 永末書店, Kyoto, Oct. 2017.
29.	Megumi Watanabe and Tetsuo Ichikawa : 歯科がかかわる地域包括ケアシステム入門, Ishiyaku Publishers,Inc., Tokyo, Sep. 2017.
30.	Yasuhiko Shirayama and Tetsuo Ichikawa : 歯科がかかわる地域包括ケアシステム入門, Ishiyaku Publishers,Inc., Tokyo, Sep. 2017.
31.	Megumi Watanabe and Tetsuo Ichikawa : 通常の運動にはエクササイズプログラムというものがありますが，口のエクササイズのプログラムはありませんか?, Aug. 2017.
32.	Tetsuo Ichikawa : 咀嚼の本2 -ライフステージから考える咀嚼・栄養・健康-, 口腔保健協会, Tokyo, Aug. 2017.
33.	Takaharu Goto, 中道敦子 and Tetsuo Ichikawa : 咀嚼の本2 ‐ライフステージから考える咀嚼・栄養・健康‐ Q18 一口30回以上噛むようにしていますが，なかなかできません．もっといい工夫はありませんが?, 2017.
34.	Tetsuo Ichikawa, 馬場拓朗 and Kazutomo Yagi : 第4部臼歯部咬合支持．In:咬合のサイエンスとアート．Martin Gross 著．古谷野潔監訳．, クインテッセンス出版株式会社, Tokyo, Aug. 2016.
35.	Tetsuo Ichikawa : 無歯顎補綴治療学第3版, Ishiyaku Publishers,Inc., Tokyo, Feb. 2016.
36.	Tetsuo Ichikawa : Implant Dentistry Encyclopedia, Quintessence Publishing CO.,Ltd., Tokyo, Dec. 2014.
37.	Teruaki Ito, Tetsuo Ichikawa, Nevan C. Hanumara and Alexander H. Slocum : Teaching Creativity in Design Through Project-Based Learning in a Collaborative Distributed Educational Setting, --- in Cloud-based Design and Manufacturing (CBDM) (Dirk Schaefer, Ed.) ---, Springer-Verlag, London, Jul. 2014. (Summary) This chapter presents the challenge of teaching creativity in design through project-based learning (PBL) in a collaborated distributed educational setting. First, PBL engineering class examples regarding computer-aided design for a toy modeling and original design/modeling for a remote controlled robot are presented, as a starting point of this challenge, from two different institutions, or the University of Tokushima in Japan and the Massachusetts Institute of Technology in U.S.A. After reviewing these classes, several critical elements are identified for the success of these classes. Considering these elements, PBL provides not only an effective approach for teaching creativity in education in a university setting and also could also be applied more generally in a global setting. The second part of this chapter presents the challenge of teaching creativity in a global project using the web-based design and manufacturing of a dental milling machine, followed by a dental headrest project by the process of expectation management. Reviewing the critical roles of conventional learning management systems in these PBL classes and the current trends of cloud computing, this chapter shows the potential of cloud-based design and manufacturing to support creativity in design education. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-3-319-07398-9_9 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84930260759 (DOI: 10.1007/978-3-319-07398-9_9, Elsevier: Scopus)
38.	Tetsuo Ichikawa : 口腔インプラント学学術用語集第3版, Quintessence Publishing CO.,Ltd., Tokyo, Jun. 2014.
39.	Tetsuo Ichikawa : 歯科医師のための医学ハンドブック, Ishiyaku Publishers,Inc., Tokyo, May 2014.
40.	Yoshihito Naitou, Kan Nagao and Tetsuo Ichikawa : 見る目が変わる「欠損歯列」の読み方，「欠損補綴」の設計(本多正明，宮地建夫，伊藤雄策，武田孝之編著), Quintessence Publishing CO.,Ltd., Tokyo, Jan. 2013.
41.	Yoritoki Tomotake, Yuichi Ishida and Tetsuo Ichikawa : インプラントとの隣接面コンタクトは喪失するか?, Dec. 2012.
42.	Yoritoki Tomotake, Yoshihito Naitou and Tetsuo Ichikawa : 力学の基本 -生体に危険な力の理解のために-, Dec. 2012.
43.	Tetsuo Ichikawa, Kan Nagao, Yoritoki Tomotake, Yuichi Ishida and 石田修 : リンガライズドオクルージョン -義歯の咬合・インプラントの咬合-(松本直之，市川哲雄監著), Ishiyaku Publishers,Inc., Tokyo, Sep. 2010.
44.	Tetsuo Ichikawa and 後藤崇晴 : インターディシプリナリー治療計画改訂版(Michael Cohen 編集) 第7章咬合高径の設定へのアプローチ, Quintessence Publishing CO.,Ltd., Tokyo, Aug. 2010.
45.	Yutaka Sato and Tetsuo Ichikawa : ファンクショナル・オクルージョン(Peter E. Dawson 著，小出薫監訳) PartⅢ治療 31章診断用ワックスアップ, Ishiyaku Publishers,Inc., Tokyo, Jun. 2010.
46.	Tetsuo Ichikawa : 義歯のケア -歯科衛生士のための副読本-, Dental Diamond Co., Tokyo, Feb. 2010.
47.	Yoritoki Tomotake and Tetsuo Ichikawa : CT光造形実体モデルとレーザー溶接法を利用した埋入即時負荷インプラント治療, Nov. 2008.
48.	Tetsuo Ichikawa, Yoritoki Tomotake and 井上孝 : 外科即時埋入, Nov. 2008.
49.	Tetsuo Ichikawa, Yoritoki Tomotake and 井上孝 : 外科即時荷重, Nov. 2008.
50.	Yuri Yoshida, Yoritoki Tomotake and Tetsuo Ichikawa : 診断と診断用機器画像診断-コンピュータガイドシステム, Jun. 2008.
51.	Yuri Yoshida, Yoritoki Tomotake and Tetsuo Ichikawa : 診断と診断用機器三次元画像検査用機器, Jun. 2008.
52.	和田匡史, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴インプラントの生物学的幅経, Jun. 2008.
53.	Daisuke Nagao, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴負荷の分類，免荷期間．, Jun. 2008.
54.	Yoshihito Naitou, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴生体適合性/Biocompatibility, Jun. 2008.
55.	Yuichi Ishida, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴インプラントの治療計画, Jun. 2008.
56.	Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴インプラントの成功基準, Jun. 2008.
57.	Yutaka Sato, Kan Nagao and Tetsuo Ichikawa : 「義歯の要件」...審美歯科・インプラントワードブック...第3章ベーシック補綴 2．デンチャー, Ishiyaku Publishers,Inc., Tokyo, Jun. 2008.
58.	Tetsuo Ichikawa, Yoritoki Tomotake and Hideo Kanitani : 特殊義歯の問題点と対策, Jan. 2006.
59.	Yoritoki Tomotake, Wei Hau, Chen Jianrong and Tetsuo Ichikawa : Implant supporting retaining cases., Oct. 2005.
60.	Yoritoki Tomotake, 渋谷恵子, Daisuke Nagao and Tetsuo Ichikawa : Clinical applications. Tissue supporting and implant retaining cases., Oct. 2005.
61.	Yoritoki Tomotake, Hau Wei, Jianrong Chen and Tetsuo Ichikawa : インプラント支持，インプラント維持の症例, Oct. 2005.
62.	Yoritoki Tomotake, 渋谷恵子, Daisuke Nagao and Tetsuo Ichikawa : 臨床への応用粘膜支持，インプラント維持の症例, Oct. 2005.
63.	Tetsuo Ichikawa and Seiichiro Kitamura : 総義歯を用いた無歯顎治療, Quintessence Publishing CO.,Ltd., Tokyo, Dec. 2004.
64.	Tetsuo Ichikawa and Naeko Kawamoto : New Magnetic Applications in Clinical Dentistry, --- Biological Effects of Magnetic Attachment on the Human Body and Tissue ---, Quintessence Publishing CO.,Ltd., Tokyo, Dec. 2004.
65.	Tetsuo Ichikawa : 今日の治療指針 TODAY'S THERAPY 2004(山口徹，北原光夫総編集), IGAKU-SHOIN Ltd.Tokyo,Japan, Tokyo, Jan. 2004.
66.	Inoue Sanshiro, Kenji Oka and Tetsuo Ichikawa : レーザー歯科治療の最前線, May 2003.
67.	Toshiya Kashiwabara, Tetsuo Ichikawa, Naeko Kawamoto, Hideo Kanitani, Masanobu Horiuchi, Katsuhiko Hirota, Yoichiro Miyake and Naoyuki Matsumoto : EBMに基づいた口腔ケアのために必読文献集(日本歯科医師会監修/静岡県歯科医師会編), Ishiyaku Publishers,Inc., Tokyo, Mar. 2002.
68.	Yoritoki Tomotake, Hideo Kanitani, Fumiaki Kawano and Tetsuo Ichikawa : ステリオスインプラント, Jan. 2000.
69.	Hidehiko Hosoki, Shusaburo Uemura, Minoru Ueda, Yasumasa Akagawa, Tetsuo Ichikawa and Fumiaki Kawano : 画像診断, 先端医療技術研究所, Tokyo, Jan. 2000.
70.	Fumiaki Kawano, Tetsuo Ichikawa and Kenzo Asaoka : 症例にあわせた歯科材料の選択, クインテッセンス出版, Oct. 1999. (Keyword) レジン材料 / 金属材料 / ハイブリッド材料
71.	Fumiaki Kawano, Tetsuo Ichikawa and 石田修 : ，臨床応用に臨むハイブリッド系材料, クインテッセンス出版, Oct. 1999. (Keyword) ハイブリッド材料 / ブリッジ / アクリルファイバー
72.	Tetsuo Ichikawa : パーシャルデンチャーテクニック(藍稔，井上宏，野首孝祠，松本直之他編), Ishiyaku Publishers,Inc., Tokyo, Jun. 1999.
73.	Tetsuo Ichikawa, Kan Nagao and Naoyuki Matsumoto : 強電解酸性水の歯科臨床, Quintessence Publishing CO.,Ltd., Tokyo, Sep. 1997. (Keyword) 強電解水

Academic Paper (Judged Full Paper):

1.	Mio Kitamura, Takaharu Goto, Tetsuo Ichikawa and Yasuhiko Shirayama : Clarifying the actual situation of old-old adults with unknown health conditions and those indifferent to health using the National Health Insurance Database (KDB) system, Geriatrics, Vol.9, No.6, 156, 2024.
2.	Takaharu Goto, Yukako Masutomi and Tetsuo Ichikawa : Distribution of main occluding area and associated factors in adolescents, Journal of Oral Science, Vol.66, No.4, 237-240, 2024. (Link to Publication Site) ● Publication site (DOI): 10.2334/josnusd.24-0197 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2334/josnusd.24-0197 (DOI: 10.2334/josnusd.24-0197)
3.	Takaharu Goto, Shinji Fujiwara, Tomoya koda, Takashi Matsuda, Mio Kitamura, Yasuhiko Shirayama and Tetsuo Ichikawa : Biopsychosocial consideration of Ikigai in older adults in Japan through a cross-sectional study., Geriatrics, Vol.9, No.3, 78, 2024. (Summary) -a Japanese concept that includes elements such as life's purpose and meaning-has been reported to be associated with various systemic health conditions, such as the risk of developing physical dysfunction or death in older adults. However, there are no reports that comprehensively examine the psychological and social aspects of . We attempted to clarify the characteristics of by examining it from a biopsychosocial model using physical, psychological, and social perspectives through a cross-sectional study on sarcopenia, frailty and healthy life expectancy in a hilly and mountainous area of Japan. Koyadaira in Mima City, which is located in a hilly and mountainous region on Shikoku Island in Japan, was targeted. This cross-sectional study included 105 outpatients aged 65 and over, with an average age of 79.02 ± 6.91 years. (self-rating score on a scale of 0 (no ) to 5 (the highest )) participants' level of physical activity (the Physical Activity Scale for the Elderly, PASE), degree of depression (the Geriatric Depression-15 Scale, GDS-15), cognitive function (the Mini-Mental State Examination, MMSE) and social isolation (the abbreviated Lubben Social Network Scale, LSNS-6) was assessed. Significant positive correlations were found between PASE and MMSE. The LSNS-6 significantly correlated with the MMSE and GDS-15. In a path model, out of four paths from PASE, GDS-15, MMSE, and LSNS-6 to , the path from the GDS-15 alone was significant (correlation coefficient -0.271, < 0.01). The adaptability of this model was good. This study indicates that depressive status has a large impact on , along with physical, cognitive, and social conditions; thus, it is appropriate to consider that an affective psychological status, such as depressive symptoms, is a fundamental condition for having . (Link to Publication Site) ● Publication site (DOI): 10.3390/geriatrics9030078 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 38920434 ● Summary page in Scopus @ Elsevier: 2-s2.0-85196857934 (DOI: 10.3390/geriatrics9030078, PubMed: 38920434, Elsevier: Scopus)
4.	Adityakrisna Putra Yoshi Wigianto, Megumi Watanabe, Yuki Iwawaki, Takaharu Goto, Tamaki Otsuki and Tetsuo Ichikawa : Antimicrobial Efficacy of a Portable UV-C-Based Coating Activation Device against Candida albicans Biofilm and SARS-CoV-2 as an Additional Feature: An In Vitro Study., Hygiene, Vol.4, No.1, 93-102, 2024. (Link to Publication Site) ● Publication site (DOI): 10.3390/hygiene4010006 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3390/hygiene4010006 (DOI: 10.3390/hygiene4010006)
5.	Yukako Masutomi, Takaharu Goto and Tetsuo Ichikawa : Mouth breathing reduces oral function in adolescence, Scientific Reports, Vol.14, No.1, 3810, 2024. (Summary) Although humans breathe naturally through the nostrils, mouth breathing in children has recently gathered attention. In this study, we hypothesized that tongue function and its related maxillofacial morphology would affect breathing in adolescence. To verify this hypothesis, we examined the association between breathing patterns, including mouth and nasal breathing; oral functions, including tongue motor function; and craniofacial morphology during adolescence, which has not been investigated till date. C3-H, which indicates the anteroposterior position of the hyoid bone in relation to the third cervical vertebra, was significantly smaller in mouth-breathers than in nasal-breathers. Lip-closing force, tongue pressure, and masticatory efficiency were lower in the order of nasal-breathers, oronasal-breathers, and mouth-breathers, and the values for mouth-breathers were significantly lower than those for nasal-breathers. Tongue pressure alone was identified as a significant independent variable, with an odds ratio of 1.063 (95% confidence interval, 1.006-1.123; p < 0.05). Our results indicate a relationship between mouth breathing and the lip-closing force, tongue pressure, and masticatory efficiency, as well as the significance of tongue pressure on mouth breathing in adolescents. The findings highlight the importance of clarifying the pathophysiology of mouth breathing and its underlying causes. (Keyword) Child / Humans / Adolescent / Mouth Breathing / Pressure / Cephalometry / Tongue / Cervical Vertebrae (Tokushima University Institutional Repository) ● Metadata: 119375 (Link to Publication Site) ● Publication site (DOI): 10.1038/s41598-024-54328-x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 38360938 ● Summary page in Scopus @ Elsevier: 2-s2.0-85185233184 (Tokushima University Institutional Repository: 119375, DOI: 10.1038/s41598-024-54328-x, PubMed: 38360938, Elsevier: Scopus)
6.	Takaharu Goto, Takahiro Kishimoto, Shinji Fujiwara, Yasuhiko Shirayama and Tetsuo Ichikawa : Social frailty as a predictor of all-cause mortality and functional disability: a systematic review and meta-analysis, Scientific Reports, Vol.14, No.1, 3410, 2024. (Summary) The association between social frailty and adverse health outcomes, especially mortality and functional disability, which are essential health outcomes, has not been systematically summarized or meta-analyzed. In this study, we conducted a systematic review and meta-analysis of the impact of social frailty on all-cause mortality and functional disability, while addressing the components of social frailty. In this study, social frailty was operationally defined in alignment with the previous literature, as follows: "a state of increased vulnerability to the interactive back-and-forth of the community, including general resources, social resources, social behaviors, and needs." Hazard ratios or odds ratios described in each selected literature were used as the meta-analytic results. Considering the impact of social frailty on all-cause mortality, the hazard ratio was 1.96 (95% CI 1.20-3.19), indicating a significant association between the two but high heterogeneity. The hazard and odds ratios for the impact of social frailty on functional disability were 1.43 (95% CI 1.20-1.69) and 2.06 (95% CI 1.55-2.74), respectively. A significant association was found between social frailty and functional disability; both hazard and odds ratios were found, and low heterogeneity between these articles was observed. These results highlight the importance of assessing social frailty using more standardized methods and examining its effects on various health outcomes. (Keyword) Humans / Aged / Frailty / Frail Elderly / social behavior / Odds Ratio / Proportional Hazards Models (Tokushima University Institutional Repository) ● Metadata: 119449 (Link to Publication Site) ● Publication site (DOI): 10.1038/s41598-024-53984-3 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 38341512 ● Summary page in Scopus @ Elsevier: 2-s2.0-85184791876 (Tokushima University Institutional Repository: 119449, DOI: 10.1038/s41598-024-53984-3, PubMed: 38341512, Elsevier: Scopus)
7.	Mio Kitamura, Yasuhiko Shirayama, Takaharu Goto, Tetsuo Ichikawa and Shinji Fujiwara : Association between working in small-scale cultivated land as a daily-life task and the physical and cognitive functions among elderly people in hilly and mountainous areas, Japanese Journal of Geriatrics, Vol.61, No.1, 54-60, 2024. (Keyword) Working in small-scale cultivated land / Older people / Daily-life task / Physical function / cognitive function (Link to Publication Site) ● Publication site (DOI): 10.3143/geriatrics.61.54 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390299749789002880 ● Search Scopus @ Elsevier (DOI): 10.3143/geriatrics.61.54 (DOI: 10.3143/geriatrics.61.54, CiNii: 1390299749789002880)
8.	Megumi Watanabe, Lipei Liu and Tetsuo Ichikawa : Are Allergy-Induced Implant Failures Actually Hypersensitivity Reactions to Titanium? A Literature Review., Dentistry Journal, Vol.11, No.11, 263, 2023. (Summary) This literature review was performed to assess whether implant failures are associated with titanium allergy. An electronic search of the MEDLINE/PubMed, Cochrane Library, and Scopus databases up to April 2021 was conducted, and the obtained articles were independently assessed by two reviewers. Articles describing cases of implant failure in which the cause of implant failure was only identified as allergy were included. Twelve studies were included. Eight studies identified Ti allergy by clinical examinations, of which four used patch tests, three used the lymphocyte transformation test (LTT)/memory lymphocyte immunostimulation assay (MELISA), and one used both tests. Nine studies reported cases of titanium hypersensitivity in combination with other systemic allergy-related disorders, with eight cases also showing positive results for Ni, Hg, Cr, and Co hypersensitivity. Ten papers reported the improvement of symptoms after the removal of the Ti implants and their replacement with zirconia implants, and two of these papers showed good results. Cases of probable titanium allergy included those with true titanium allergies and those with a potentially different cause. However, the differentiation of these cases is difficult. Since no definitive method has been established for diagnosing titanium allergy, a comprehensive diagnosis based on the clinical course and clinical examination using a patch test/LTT/MELISA is necessary. Implant treatment should be performed with caution in patients with any preoperative allergies. (Link to Publication Site) ● Publication site (DOI): 10.3390/dj11110263 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37999027 ● Search Scopus @ Elsevier (PMID): 37999027 ● Search Scopus @ Elsevier (DOI): 10.3390/dj11110263 (DOI: 10.3390/dj11110263, PubMed: 37999027)
9.	Hideki Suito, Keiko Fujimoto, Takaharu Goto, Kan Nagao, Hidehiko Hosoki and Tetsuo Ichikawa : Effective use of an extraoral vacuum in preventing the dispersal of particulate matter from metal dental materials., Journal of Occupational Health, Vol.65, No.1, e12412, 2023. (Summary) When dentists adjust prostheses at the dental chairside, particulate matter (PM) from the dental material is dispersed. Little is known about the effective use of an extraoral vacuum (EOV) in preventing PM dispersal. This study aimed to evaluate the effective use of an EOV in preventing the dispersal of metal PM in dental offices. The following experimental conditions were planned: the distance from the EOV to the metallic materials (50, 100, 150, and 200 mm), the horizontal angle between the long axis of the micromotor handpiece and EOV (0°, 45°, and 90°), and the operating time of the EOV (during grinding, during grinding and 1 min thereafter, during grinding and the preceding 1 min, 1 min before and after grinding, and during grinding). Carborundum and silicone points were used for grinding and PM dispersal. Diameters (0.3, 0.5, 1.0, and 3.0 μm) were measured using a laser particle counter. Depending on the instrument used to grind, there were undetectable PMs of different diameters (Carborundum point: 0.3 and 0.5 μm, Silicone point: 0.3 μm). PMNs were reduced as the distance from the EOV to metal materials decreased. Operating the EOV before grinding along the long axis of the micromotor handpiece was effective in reducing the PMNs. PMNs dispersed when grinding metals were effectively reduced by positioning the EOV closer to the grinding surface (within 150 mm) along the long axis of the micromotor handpiece and operating the EOV before grinding. (Keyword) Humans / Particulate Matter / Vacuum / Dental Materials (Tokushima University Institutional Repository) ● Metadata: 119393 (Link to Publication Site) ● Publication site (DOI): 10.1002/1348-9585.12412 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37347802 ● Summary page in Scopus @ Elsevier: 2-s2.0-85162829227 (Tokushima University Institutional Repository: 119393, DOI: 10.1002/1348-9585.12412, PubMed: 37347802, Elsevier: Scopus)
10.	Suguru Kimoto, Yasuhiko Kawai, Asako Suzuki, Yasuyo Koide, Hisatomo Kondo, Taro Nomura, Akito Tsuboi, Yoshihiko Ito, Guang Hong, Shunsuke Minakuchi, Gaku Ohwada, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Makiko Saita, Noriyuki Hoshi, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, Joji Okazaki, Takeshi Maeda, Kenichiro Nakai, Tetsuo Ichikawa, Kan Nagao, Keiko Fujimoto, Tadafumi Kurogi, Hiroshi Murata, Hitomi Okazaki, Masahiro Nishimura, Yasuhiro Nishi, Mamoru Murakami, Toshio Hosoi and Taizo Hamada : Effect of denture adhesives on masticatory performance: Multicenter randomized controlled trial., Journal of Prosthodontic Research, 2023. (Tokushima University Institutional Repository) ● Metadata: 119322 (Link to Publication Site) ● Publication site (DOI): 10.2186/jpr.JPR_D_22_00105 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37316261 ● Search Scopus @ Elsevier (PMID): 37316261 ● Search Scopus @ Elsevier (DOI): 10.2186/jpr.JPR_D_22_00105 (Tokushima University Institutional Repository: 119322, DOI: 10.2186/jpr.JPR_D_22_00105, PubMed: 37316261)
11.	Tetsuo Ichikawa, Yuichi Ishida and Megumi Watanabe : 補綴歯科はインプラント治療で何を見ているのか．, 日本顎顔面インプラント学会誌, Vol.22, No.1, 3-9, 2023.
12.	Kan Nagao, Keiko Fujimoto, Hideki Suito, Takaharu Goto, Yuichi Ishida, Megumi Watanabe and Tetsuo Ichikawa : Effect of Palatal Augmentation Prosthesis on Speech and Swallowing in Tongue Dysfunction:A Literature Review, Journal of Oral Health and Biosciences, Vol.35, No.2, 39-46, 2023. (Summary) Purpose: Palatal augmentation prosthesis (PAP) is used on patients with dysphagia and dysarthria. While several studies have evaluated the effects of PAP, evidence regarding the adaptation criteria, effects, and limitations of PAP are not well organized. This review aims to summarize its functions, limitations, and applications. Procedure: To investigate the adaptation criteria, effects, and limitations of PAP, we searched the English language literature published in PubMed from its inception through April 20, 2022. The leading search terms included ``palatal augmentation prosthesis.'' Main findings: The primary search used keywords that reflected 31 studies. Finally, nine cross-sectional studies and nine case reports were selected for full-text assessment after applying the inclusion criteria. Eleven studies described the efficacy of speech function: two for motility factors and nine for organic factors (with overlap). Thirteen studies described the effectiveness of swallowing function, four related to motility factors, and ten for organic factors (with overlap). Several studies have demonstrated that PAP effectively restores articulation and swallowing in patients with impaired tongue function after glossectomy for oropharyngeal cancer, sequelae of cranial nerve disease, or neuromuscular disease. However, few papers describe the scope of glossectomy and tongue movement restrictions, so it is impossible to describe the adaptation criteria, effects, and limitations. In this review, most case reports and cross-sectional studies did not provide information on the fabrication methods of PAP or the dentistsʼ experience. Thus, the effect of bias on palatal morphology in PAP patients remains unclear. Conclusions: The number of patients with dysarthria and dysphagia is increasing worldwide, similar to what is already occurring in Japan. Therefore, additional high-quality studies on the effects of PAP are required. (Keyword) Palatal augmentation prosthesis / Tongue dysfunction / Literature review (Tokushima University Institutional Repository) ● Metadata: 118167 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.35.2_39 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390014093884103040 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.35.2_39 (Tokushima University Institutional Repository: 118167, DOI: 10.20738/johb.35.2_39, CiNii: 1390014093884103040)
13.	Yoshihiro Tagami, Keiko Fujimoto, Takaharu Goto, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : Can Measurement of Ultrasonic Echo Intensity Predict Physical Frailty in Older Adults?, Diagnostics, Vol.13, No.4, 675, 2023. (Summary) Echo intensity (EI) of the tongue in ultrasonography is an easy and quantitative assessment of tongue function. Elucidating the relationship between EI and frailty, is expected to aid in the early detection of frailty and oral hypofunction in older adults. We assessed tongue function and frailty in older outpatients visiting a hospital. The subjects were 101 individuals aged 65 or older (35 men and 66 women, mean age 76.4 ± 7.0 years). Tongue pressure and EI were measured as assessments of tongue function and grip strength, and Kihon Checklist (KCL) scores were measured as assessments of frailty. In women, a significant correlation was not found between the mean EI and grip strength, whereas a significant correlation was noted between each score of the KCL and the mean EI; the scores increased as the mean EI increased. A significant positive correlation was found between tongue pressure and grip strength, but no significant correlation was observed between tongue pressure and the KCL scores. In men, no significant correlation was found between tongue assessments and frailty, except for a significant positive correlation between tongue pressure and grip strength. The results of this study suggest that EI of the tongue is positively associated with physical frailty in women and may be useful for early detection of physical frailty status. (Tokushima University Institutional Repository) ● Metadata: 118377 (Link to Publication Site) ● Publication site (DOI): 10.3390/diagnostics13040675 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36832163 ● Search Scopus @ Elsevier (PMID): 36832163 ● Search Scopus @ Elsevier (DOI): 10.3390/diagnostics13040675 (Tokushima University Institutional Repository: 118377, DOI: 10.3390/diagnostics13040675, PubMed: 36832163)
14.	Yasufumi Nishikawa, Yoritoki Tomotake, Hiromichi Kawano, Koji Naruishi, Jun-ichi Kido, Yuka Hiroshima, Akikazu Murakami, Tetsuo Ichikawa and Hiromichi Yumoto : Effects of Candidalysin Derived from Candida albicans on the Expression of Pro-Inflammatory Mediators in Human Gingival Fibroblasts, International Journal of Molecular Sciences, Vol.24, No.4, 3256, 2023. (Tokushima University Institutional Repository) ● Metadata: 118834 (Link to Publication Site) ● Publication site (DOI): 10.3390/ijms24043256 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36834667 ● Search Scopus @ Elsevier (PMID): 36834667 ● Search Scopus @ Elsevier (DOI): 10.3390/ijms24043256 (Tokushima University Institutional Repository: 118834, DOI: 10.3390/ijms24043256, PubMed: 36834667)
15.	Tadafumi Kurogi, Hiroshi Murata, Erika Yamaguchi, Yasuhiko Kawai, Asako Suzuki, Yasuyo Koide, Suguru Kimoto, Hisatomo Kondo, Taro Nomura, Akito Tsuboi, Guang Hong, Yoshihiko Ito, Shunsuke Minakuchi, Gaku Ohwada, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Noriyuki Hoshi, Makiko Saita, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, Joji Okazaki, Takeshi Maeda, Kenichiro Nakai, Tetsuo Ichikawa, Kan Nagao, Keiko Fujimoto, Masahiro Nishimura, Yasuhiro Nishi, Mamoru Murakami, Toshio Hosoi and Taizo Hamada : Effects of denture adhesives on denture retention and occlusal forces in complete denture wearers: A multicenter, randomized controlled trial., Journal of Prosthodontic Research, 2023. (Summary) Application of cream-type denture adhesives effectively improves the denture retention and occlusal force in complete denture wearers with a moderate degree of difficulty during edentulism treatment. (Tokushima University Institutional Repository) ● Metadata: 119406 (Link to Publication Site) ● Publication site (DOI): 10.2186/jpr.JPR_D_22_00178 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36740264 ● Search Scopus @ Elsevier (PMID): 36740264 ● Search Scopus @ Elsevier (DOI): 10.2186/jpr.JPR_D_22_00178 (Tokushima University Institutional Repository: 119406, DOI: 10.2186/jpr.JPR_D_22_00178, PubMed: 36740264)
16.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : Stress Reduction Effects during Block-Tapping Task of Jaw in Healthy Participants: Functional Near-Infrared Spectroscopy (fNIRS) Measurements of Prefrontal Cortex Activity, Brain Sciences, Vol.12, No.12, 1711, 2022. (Summary) The purpose of this study was to explore the influence of simple jaw opening and closing task of chewing movements on the activities of the prefrontal cortex (PFC) from the viewpoint of stress reduction. We measured cerebral blood flow (CBF) in the PFC during a block-tapping task of the jaw in healthy participants. Eleven young healthy individuals with normal dentition (7 males and 4 females, mean age 28.0 ± 3.7 years) volunteered for this study. CBF was measured using a wearable, functional near-infrared spectroscopy device. Measurements were taken using the central incisors and first molars at interocclusal distances of 5 and 10 mm. The participants were asked to bite a hard/soft block. CBF in all conditions showed limited variability or decreasing trend compared to resting state before the task. The main effect was observed for interocclusal distance ( = 0.008), and there were no significant differences for measurement area of the PFC, tooth type, and material type. An interaction was found between tooth type and material type. In conclusion, these results suggest that simple and rhythmical chewing motion has an effect of reducing CBF in the PFC and resting the PFC, which is an especially notable aspect of periodontal sensory information in the molar. (Tokushima University Institutional Repository) ● Metadata: 118206 (Link to Publication Site) ● Publication site (DOI): 10.3390/brainsci12121711 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36552170 ● Search Scopus @ Elsevier (PMID): 36552170 ● Search Scopus @ Elsevier (DOI): 10.3390/brainsci12121711 (Tokushima University Institutional Repository: 118206, DOI: 10.3390/brainsci12121711, PubMed: 36552170)
17.	Tetsuo Ichikawa : Significance of recognition of dental specialties certifying boards and its role of Japanese Dental Science Federation, Journal of Japanese Dental Science Federation, Vol.1, No.1, 6-11, 2022. (Summary) <p>一般社団法人日本歯科医学会連合(以下，連合)所属の臨床系会員学会において，歯科専門医制度の充実と，さらにはそれが広告可能であることは非常に重要な問題である．連合は，歯科専門医制度の認定機関である一般社団法人日本歯科専門医機構(以下，機構)の設立を主導し，その結果令和3年度の厚生労働省告示によって機構の認定する歯科専門医制度が広告可能の条件となった．</p><p>歯科専門医制度は，歯科医師の生涯研修制度の一つであり，国民に対して適切な歯科医療体制の構築に必要不可欠なものであるという観点から，この制度を考えなければいけない．当然機構だけの問題ではなく，連合，大学，歯科医師会も含めた歯科界全体の問題として捉えなければならない．そのために，連合は会員学会の専門医，認定医制度を支援するとともに，機構の定めた歯科専門医の定義と5つの理念に従って，歯科専門医制度の整備と充実のために機構を支援し，活動を進めていかなければならない．</p> (Keyword) キャリアパス / 歯科専門医 / 認定 / 日本歯科医学会連合 / 日本歯科専門医機構 / 生涯研修 (Link to Publication Site) ● Publication site (DOI): 10.57468/jjdsf.22-002 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390576215066537600 ● Search Scopus @ Elsevier (DOI): 10.57468/jjdsf.22-002 (DOI: 10.57468/jjdsf.22-002, CiNii: 1390576215066537600)
18.	Yukako MASUTOMI, Takaharu Goto and Tetsuo Ichikawa : Investigation on the relationship between body posture and oral function in adolescents, The Journal of the Japanese Academy of Occulusion and Health, Vol.28, No.2, 12-15, 2022. (Keyword) 姿勢 / 口腔機能 / 咀嚼能力 / 不正咬合 / 猫背 / body posture / oral function / masticatory ability / malocclusion / slouching (Link to Publication Site) ● Publication site (DOI): 10.34420/jjaoh.28.2_12 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390857136555623936 ● Search Scopus @ Elsevier (DOI): 10.34420/jjaoh.28.2_12 (DOI: 10.34420/jjaoh.28.2_12, CiNii: 1390857136555623936)
19.	Kenji Maekawa, Tomoko Ikeuchi, Shoji Shinkai, Hirohiko Hirano, Masahiro Ryu, Katsushi Tamaki, Hirofumi Yatani, Takuo Kuboki, Aya Kimura-Ono, Takeshi Kikutani, Takashi Suganuma, Yasunori Ayukawa, Tomoya Gonda, Toru Ogawa, Masanori Fujisawa, Shoichi Ishigaki, Yutaka Watanabe, Akihiko Kitamura, Yu Taniguchi, Yoshinori Fujiwara, Ayako Edahiro, Yuki Ohara, Junichi Furuya, Junko Nakajima, Kento Umeki, Kentaro Igarashi, Yasuhiro Horibe, Yoshihiro Kugimiya, Yasuhiko Kawai, Hideo Matsumura, Tetsuo Ichikawa, Shuji Ohkawa and Kazuyoshi Baba : Impact of number of functional teeth on independence of Japanese older adults., Geriatrics & Gerontology International, Vol.22, No.12, 1032-1039, 2022. (Summary) To examine the relationship between the number of present and functional teeth at baseline and future incidence of loss of independence. Participants were community-dwelling older individuals who participated in a comprehensive geriatric health examination conducted in Kusatsu town, Japan, between 2009 and 2015. The primary endpoint was the incidence of loss of independence among participants, defined as the first certification of long-term care insurance in Japan. The numbers of present and functional teeth at baseline were determined via an oral examination. Demographics, clinical variables (e.g., history of chronic diseases and psychosocial factors), blood nutritional markers, physical functions, and perceived masticatory function were assessed. This study included 1121 individuals, and 205 individuals suffered from loss of independence during the follow-up period. Kaplan-Meier estimates of loss of independence for participants with smaller numbers of present and functional teeth were significantly greater than for those with larger numbers of teeth. Cox proportional hazard analyses indicated that a smaller number of present teeth was not a significant risk factor after adjusting for demographic characteristics. However, the number of functional teeth was a significant risk factor after the adjustment (hazard ratio: 1.975 [1.168-3.340]). Additionally, higher hazard ratios were observed in other adjusted models, but they were not statistically significant. The number of functional teeth may be more closely related to the future incidence of loss of independence than the number of present teeth. This novel finding suggests that prosthodontic rehabilitation for tooth loss possibly prevents the future incidence of this life-event. Geriatr Gerontol Int 2022; 22: 1032-1039. (Keyword) Humans / Aged / Japan / Tooth Loss / Certification / Independent Living / Insurance, Long-Term Care (Tokushima University Institutional Repository) ● Metadata: 118958 (Link to Publication Site) ● Publication site (DOI): 10.1111/ggi.14508 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36408675 ● Search Scopus @ Elsevier (PMID): 36408675 ● Search Scopus @ Elsevier (DOI): 10.1111/ggi.14508 (Tokushima University Institutional Repository: 118958, DOI: 10.1111/ggi.14508, PubMed: 36408675)
20.	Adityakrisna Putra Yoshi Wigianto, Yuichi Ishida, Yuki Iwawaki, Takaharu Goto, Megumi Watanabe, Kazumitsu Sekine, Kenichi Hamada, Keiji Murakami, Hideki Fujii and Tetsuo Ichikawa : 2-methacryloyloxyethyl phosphorylcholine polymer treatment prevents Candida albicans biofilm formation on acrylic resin, Journal of Prosthodontic Research, Vol.67, No.3, 384-391, 2022. (Summary) We aimed to evaluate the effectiveness of photoreactive 2-methacryloyloxyethyl phosphorylcholine (MPC) in inhibiting Candida albicans biofilm formation on polymethyl methacrylate (PMMA) and assess its mechanism and need for re-application by evaluating its interaction with salivary mucin and durability during temperature changes. PMMA discs were used as specimens. The MPC coating was applied using the spray and cure technique for the treatment groups, whereas no coating was applied to the control. The MPC treatment (MT) groups were further differentiated based on the number of thermal cycles involved (0, 1000, 2500, and 5000). The optical density was measured to assess mucin adsorption (MA). Contact angle (CA) was calculated to evaluate surface hydrophilicity. The presence of MPC components on the PMMA surface was assessed using X-ray photoelectron spectroscopy (XPS). C. albicans biofilms were evaluated qualitatively (scanning electron microscope images) and quantitatively (colony-forming units (CFUs)). Statistical analysis was conducted using two-way analysis of variance and Tukey's multiple comparison test. MA rate and CA increased significantly in the MT groups, which exhibited significantly fewer CFUs and thinner biofilms than those of the control group. Based on the XPS, MA, and CFU evaluations, the durability and efficacy of the MPC coating were considered stable up to 2500 thermal cycles. Additionally, a significant interaction was observed between mucin concentration and MPC efficacy. The photoreactive MPC coating, which was resistant to temperature changes for approximately 3 months, effectively prevented C. albicans biofilm formation by modifying surface hydrophilicity and increasing mucin adsorption. (Keyword) Candida albicans / Acrylic Resins / Polymers / Polymethyl Methacrylate / Surface Properties / Biofilms / Mucins (Tokushima University Institutional Repository) ● Metadata: 119402 (Link to Publication Site) ● Publication site (DOI): 10.2186/jpr.JPR_D_22_00102 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36288959 ● Summary page in Scopus @ Elsevier: 2-s2.0-85166383313 (Tokushima University Institutional Repository: 119402, DOI: 10.2186/jpr.JPR_D_22_00102, PubMed: 36288959, Elsevier: Scopus)
21.	Lipei Liu, Megumi Watanabe, Norikazu Minami, Mohammad Fadyl Yunizar and Tetsuo Ichikawa : Semaphorin 3A: A potential target for prevention and treatment of nickel allergy, Communications Biology, Vol.5, No.1, 671, 2022. (Summary) Metal allergy is one of the typical immune disorders encountered during the application of dental/medical materials and has a highly complex pathogenic mechanism. Semaphorin 3A (Sema3A), a member of the semaphorin family, is reported to be involved in various immune disorders. However, its role in metal allergy has not been clarified yet. Herein, we show that Sema3A expression was upregulated in nickel (Ni) allergy-induced mouse ear tissue and in NiCl-stimulated mouse keratinocytes. Moreover, Sema3A regulated tumor necrosis factor-alpha production and mitogen-activated protein kinase activation in keratinocytes. The specific deletion of Sema3A in keratinocytes did not affect immune cell infiltration but reduced edema and ear swelling; it also impeded Th1 responses to cause a slight alleviation in Ni allergy in mice. Our results demonstrate that Sema3A promotes the development of metal allergy and should be explored as a potential target for the prevention and treatment of metal allergy. (Keyword) Animals / Hypersensitivity / Keratinocytes / Mice / Nickel / Semaphorin-3A (Tokushima University Institutional Repository) ● Metadata: 117438 (Link to Publication Site) ● Publication site (DOI): 10.1038/s42003-022-03641-0 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35798870 ● Search Scopus @ Elsevier (PMID): 35798870 ● Search Scopus @ Elsevier (DOI): 10.1038/s42003-022-03641-0 (Tokushima University Institutional Repository: 117438, DOI: 10.1038/s42003-022-03641-0, PubMed: 35798870)
22.	Lipei Liu, Megumi Watanabe, Norikazu Minami, Mohammad Fadyl Yunizar and Tetsuo Ichikawa : Dendritic Cells Directly Recognize Nickel Ions as an Antigen during the Development, Journal of Oral Health and Biosciences, Vol.34, No.2, 40, 2022. (Keyword) Metal allergy / Nickel ions / Phagocytosis / Dendritic cell migration (Tokushima University Institutional Repository) ● Metadata: 116784 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.34.2_40 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390854717498933632 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.34.2_40 (Tokushima University Institutional Repository: 116784, DOI: 10.20738/johb.34.2_40, CiNii: 1390854717498933632)
23.	Adityakrisna Putra Yoshi Wigianto, Yuichi Ishida, Takashi Matsuda, Takaharu Goto, Megumi Watanabe and Tetsuo Ichikawa : Novel Magnetic Attachment System Manufactured Using High-Frequency Heat Treatment and Stamp Technique: Introduction and Basic Performance, Dentistry Journal, Vol.10, No.5, 75, 2022. (Summary) Recently, a novel magnetic attachment with extremely low cost and high performance was developed. This article aims to introduce a novel magnetic attachment and to evaluate its basic eligibility for denture retention in clinical practice. The novel magnetic attachment system used in this study was the direct-bonding root-keeper-type Magteeth™ MT800 (MagneDesign, Nagoya, Japan). The retentive force without displacement (position 0) and after horizontal displacement to positions 0.5, 1, 1.5, 2, 2.5, and 3 mm were measured. The values relative to the retentive force without displacement were gradually decreased to 82.7 ± 16.3%, 68.8 ± 17.1%, 62.4 ± 15%, 47.2 ± 13.1%, 35.7 ± 9.9%, and 20.7 ± 6.5%, respectively. The retentive force and magnetic field strength did not change significantly after the load test (100 N load, 10,000 times). No new gap between the metal and resin was found in the root keeper- and magnet assembly-embedded blocks after the load test. Some scratches on magnetic assembly and root keeper surface, while no change in the resin texture after the load test were observed. Based on the findings of this preliminary study, this novel low-cost magnetic attachment exhibited favorable retention, strength, and durability for clinical use. (Tokushima University Institutional Repository) ● Metadata: 118924 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj10050075 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35621528 ● Search Scopus @ Elsevier (PMID): 35621528 ● Search Scopus @ Elsevier (DOI): 10.3390/dj10050075 (Tokushima University Institutional Repository: 118924, DOI: 10.3390/dj10050075, PubMed: 35621528)
24.	Mohammad Fadyl Yunizar, Megumi Watanabe and Tetsuo Ichikawa : Current development status of additive manufacturing technologies for fabricating removable partial denture frameworks: a literature review, International Journal of Computerized Dentistry, Vol.25, No.1, 57-70, 2022. (Summary) The aim of the present study was to review the current development status of additive manufacturing (AM) technology for fabricating frameworks for removable partial dentures (RPDs) considering fit accuracy, surface condition, and mechanical strength. A search of the databases of MEDLINE, Cochrane Library, and Science Direct was conducted using definite keywords ("removable partial denture" or "framework" or "dental prosthesis design") and ("additive manufacturing technology" or "rapid prototyping" or "3D-printing"). A total of 23 articles were selected according to certain inclusion criteria. The direct AM techniques were applied to manufacture metal RPD frameworks consisting of selective laser melting (SLM), selective laser sintering (SLS), and metal binder jetting (MBJ). The SLM technique showed a good surface and mechanical strength, but low accuracy. The SLS technique showed higher accuracy than indirect AM, but further studies are required. The MBJ technique showed lower accuracy and a rougher surface than the conventional method. AM techniques can produce RPD frameworks within the acceptable range for clinical practice; however, more clinical studies are needed. (Keyword) Denture, Partial, Removable / Humans / Lasers / Printing, Three-Dimensional (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35322653 ● Search Scopus @ Elsevier (PMID): 35322653 (PubMed: 35322653)
25.	Mohammad Fadyl Yunizar, Megumi Watanabe, Lipei Liu, Norikazu Minami and Tetsuo Ichikawa : Metal Allergy Mediates the Development of Oral Lichen Planus via TSLP-TSLPR Signaling, Journal of Clinical Medicine, Vol.11, No.3, 519, 2022. (Summary) Metal allergy is a T-cell-mediated delayed type of hypersensitive reaction. The pathogenetic mechanisms underlying the allergy are unclear, although the condition has been reported to be related to oral lichen planus (OLP), despite an absence of immunological studies to support this relationship. In this study, histopathological samples of OLP patients were examined to compare the metal allergy-positive and -negative groups, with a focus on the network of epidermal keratinocytes and T cells induced by thymic stromal lymphopoietin (TSLP) and its receptor, TSLPR. Infiltration of T cells into the epithelium was revealed to be higher in the OLP lesions of metal allergy-positive patients than in those of metal allergy-negative patients. Moreover, TSLP-TSLPR signaling and TNF-α production were higher in the epithelial tissue samples of the metal allergy-positive patients than in the metal allergy-negative patients. Metal allergy is associated with both increased expressions of TSLP in keratinocytes and increased TNF-α levels in the epithelium. We propose that this would promote the accumulation of T cells at the lesion site, contributing to the formation of the disease. These results suggest that metal allergy may be an aggravating factor in the pathogenesis of OLP. (Tokushima University Institutional Repository) ● Metadata: 117036 (Link to Publication Site) ● Publication site (DOI): 10.3390/jcm11030519 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35159975 ● Search Scopus @ Elsevier (PMID): 35159975 ● Search Scopus @ Elsevier (DOI): 10.3390/jcm11030519 (Tokushima University Institutional Repository: 117036, DOI: 10.3390/jcm11030519, PubMed: 35159975)
26.	Tetsuo Ichikawa, Takaharu Goto, Takahiro Kishimoto, Yuichi Ishida and Megumi Watanabe : Does Prosthodontic Treatment Improve the Nutrition Status in the Elderly? Literature Review, Journal of Food and Nutrition Research, Vol.10, No.1, 26-31, 2022. (Link to Publication Site) ● Publication site (DOI): 10.12691/jfnr-10-1-4 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.12691/jfnr-10-1-4 (DOI: 10.12691/jfnr-10-1-4)
27.	Yoshihiro Tagami, Keiko Fujimoto, Takaharu Goto, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : Measurement of ultrasonic echo intensity predicts the mass and strength of the tongue muscles in the elderly, Journal of Oral Science, Vol.64, No.1, 44-48, 2022. (Summary) The purpose of this study was to investigate the relationship between the echo intensity (EI) on ultrasound images of the tongue, tongue thickness, and tongue pressure to examine the effectiveness of EI measurement for assessing the tongue function. A total of 100 elderly outpatients were enrolled. Tongue thickness and EI were measured using ultrasonography. The distance from mylohyoid muscle surface to dorsal surface of the tongue was measured for tongue thickness. Subsequently, this area was vertically divided into four areas: top of tongue dorsal side (DT), bottom of tongue dorsal side (DB), top of basal tongue side (BT), and bottom of basal tongue side (BB), and the EI was measured in each area. The mean EIs of DT and DB were lower than those of BT and BB. In the three areas apart from BB, the EI decreased with an increase in tongue thickness. In particular, a significant correlation between the EI in DB and tongue thickness was found. In all areas, the EI decreased with an increase in tongue pressure. The results of this study suggested that the measurement of EI could be an important indicator for assessing the tongue function in the elderly. (Keyword) Aged / Humans / Muscle Strength / Muscle, Skeletal / Muscles / Pressure / Tongue / Ultrasonics (Link to Publication Site) ● Publication site (DOI): 10.2334/josnusd.21-0351 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34880146 ● CiNii @ National Institute of Informatics (CRID): 1390290780268628096 ● Summary page in Scopus @ Elsevier: 2-s2.0-85123812584 (DOI: 10.2334/josnusd.21-0351, PubMed: 34880146, CiNii: 1390290780268628096, Elsevier: Scopus)
28.	Takaharu Goto and Tetsuo Ichikawa : Relationship between oral susceptibility assessment and prefrontal cortex blood flow during occlusal force maintenance tasks, The Journal of the Japanese Academy of Occulusion and Health, Vol.27, No.2, 8-12, 2021. (Summary) <p>The purpose of this study was to clarify the relationship between the periodontal tactile sensation and the activity of the prefrontal cortex. Eleven young, healthy Japanese participants (mean age 28.0±3.7 years) volunteered to participate in this study. We tested either the left side central incisors or the first molars. The periodontal tactile sensation of each tooth was evaluated using calibrated monofilaments (von Frey hairs). A magnitude estimation method was used as a psychophysical method, and the periodontal ligament tactile and periodontal tactile sensation values were determined by Stevens' power law. Prefrontal cortex activation was evaluated using a wearable functional near-infrared spectroscopy device that measured cerebral blood flow, and the experimental task involved maintaining occlusal force within an instructed range. The logarithmic values of the physical and sensory quantities of periodontal tactile sensation showed a linear relationship, and had a significantly high correlation coefficient. Regarding the periodontal tactile sensation values, no significant difference was found between the central incisors and first molars. In the molar teeth, negative correlations were found between the periodontal tactile sensation values and the cerebral blood flow in all measurement fields. Moreover, the mean occlusal force value of molars was below the instructed range, and showed significantly lower values compared to those of anterior teeth. Based on the above results, it was shown that Stevens' power law can be applied to periodontal tactile sensation, and the periodontal tactile sensation value in molars calculated from Stevens' power law is related to the cerebral blood flow in the prefrontal cortex and inhibition of occlusal force. The site-specific importance of the periodontal tactile sensation value was suggested during the task of maintaining occlusal force.</p> (Keyword) 歯根膜触・圧覚 / 前頭前野 / 咬合力 / マグニチュード推定法 / periodontal tactile sensation / prefrontal cortex / occlusal force / magnitude estimation method (Link to Publication Site) ● Publication site (DOI): 10.34420/jjaoh.27.2_8 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390853487384974464 ● Search Scopus @ Elsevier (DOI): 10.34420/jjaoh.27.2_8 (DOI: 10.34420/jjaoh.27.2_8, CiNii: 1390853487384974464)
29.	Wigianto Yoshi Putra Adityakrisna, Takaharu Goto, Yuki Iwawaki, Yuichi Ishida, Megumi Watanabe and Tetsuo Ichikawa : Treatment outcomes of implant-assisted removable partial denture with distal extension based on the Kennedy classification and attachment type: a systematic review, International Journal of Implant Dentistry, Vol.7, No.1, 111, 2021. (Summary) Implant-assisted removable partial dentures (IARPDs) have recently become popular, but little information is available on the treatment outcomes based on the Kennedy classification and attachment types. The objective of this review was to evaluate the treatment outcomes of IARPD delivered for distal extension edentulous areas based on the differences in the Kennedy classification and attachment type. English-language clinical studies on IARPD published between January 1980 and February 2020 were collected from MEDLINE (via PubMed), the Cochrane Library (via the Cochrane Central Register of Controlled Trials), Scopus online database, and manual searching. Two reviewers selected the articles based on pre-determined inclusion and exclusion criteria, followed by data extraction and analysis. Eighty-one studies were selected after evaluating the titles and abstracts of 2410 papers. Nineteen studies were finally included after the perusal of the full text. Fourteen studies focused on Class I, 4 studies investigated both Class I and II, and only 1 study was conducted on Kennedy's class II. Eight types of attachments were reported. The ball attachment was the most frequently used attachment, which was employed in 8 of the included studies. The implant survival rate ranged from 91 to 100%. The reported marginal bone loss ranged from 0.3 mm to 2.30 mm. The patient satisfaction was higher with IARPD than with conventional RPDs or that before treatment. The results of prosthetic complications were heterogeneous and inconclusive. IARPD exhibited favorable clinical outcomes when used as a replacement for distal extension edentulous areas. The comparison between the clinical outcomes of Kennedy's class I and II was inconclusive owing to the lack of studies focusing on Kennedy Class II alone. The stud attachment was the most commonly used type in IARPDs. Overall, the different attachment systems did not influence the implant survival rate and patient satisfaction. Further high-quality studies are needed to investigate the attachment systems used in IARPD. (Keyword) Dental Implants / Dental Prosthesis, Implant-Supported / Denture, Partial, Removable / Humans / Patient Satisfaction / Treatment Outcome (Link to Publication Site) ● Publication site (DOI): 10.1186/s40729-021-00394-z (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34773513 ● Search Scopus @ Elsevier (PMID): 34773513 ● Search Scopus @ Elsevier (DOI): 10.1186/s40729-021-00394-z (DOI: 10.1186/s40729-021-00394-z, PubMed: 34773513)
30.	Keiko Fujimoto, Yuki Iwawaki, Takaharu Goto, Takahiro Kishimoto, Kan Nagao and Tetsuo Ichikawa : Objective Assessment of Poor Oral Hygiene Using the ATP Swab Test in the Elderly, Japanese Journal of Gerodontology, Vol.36, No.1, 44-52, 2021. (Summary) <p> Purpose:The purpose of this study was to evaluate the assessment of poor oral hygiene using the ATP swab test.</p><p> Method:A total of 102 consecutive elderly outpatients aged ≥65 years who visited for maintenance were enrolled between October 2019 and April 2020. The evaluation of poor oral hygiene included measurements of:Tongue Coating Index(TCI), number of bacteria by a rapid oral bacterial detection device(Bacterial Counter DU-AA01NP-H;Panasonic Health Care, Japan), and amount of ATP+AMP by the ATP swab test(Lumitester;Kikkoman, Japan). The specimens were a gargle solution rinsed with 10 mL of water for 5 seconds as soon as the patients came to the hospital or a cotton swab wiped on the tongue dorsum. The subjective assessment of hygiene of the oral mucosa and dentures was rated on a 5-point scale.</p><p> Results:In the assessment of tongue dorsum hygiene, the number of bacteria and the amount of ATP+AMP were significantly correlated with TCI. There was also a significant correlation between the number of bacteria and the amount of ATP+AMP.</p><p> Conclusion:The results of this study suggested that the ATP swab test might be used to objectively assess overall poor oral hygiene, including food residues.</p> (Keyword) elderly / poor oral hygiene / ATP swab test / bacterial counts / Tongue Coating Index (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg.36.44 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390007282526004352 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg.36.44 (DOI: 10.11259/jsg.36.44, CiNii: 1390007282526004352)
31.	Yoritoki Tomotake, Hiromichi Kawano, Yasufumi Nishikawa, Kaori TAKEKAWA, Masaru TOMINAGA and Tetsuo Ichikawa : Clinical Statistical Study of New Patients in Oral Implant Center at Tokushima University Hospital, Journal of Oral Health and Biosciences, Vol.33, No.2, 39-44, 2021. (Summary) <b>Purpose:</b> Oral Implant Center established in April 2014 as specialized clinical section at Tokushima University Hospital. The aim of this study was to report a survey of new patients of preoperative registration at Oral Implant Center during the five years since its establishment.<br> <b>Subjects and methods:</b> Investigation of gender and age, chief complaint, details of treatment requests, sites of missing teeth, number of missing teeth, cause of tooth extraction, and treatment status for patients registered at Oral Implant Center from April 2014 to March 2019 were performed.<br> <b>Results:</b> Regarding the chief complaint, 605 (88.3%) patients consulted preoperatively for a request for implant treatment, and 80 (11.7%) consulted about complain of previous implant treatment or a request for continued maintenance. The average number of missing teeth for which treatment was requested was 3.8. The proportion of patients who wished to be treated for the number of missing teeth was 32.2% for missing one tooth, 56.1% for missing few teeth (2 to 6 teeth), 7.8% for missing many teeth (7 or more teeth) and edentulous 3.9%. As for the details of treatment requests of 80 patients who had already received implant treatment, 33 (41.3%) consulted on the improper superstructure, 29 (36.3%) wished to examine and treat peri-implantitis, 4 (5%) wished to remove the implant and 14 (17.5%) requested continued maintenance.<br> <b>Discussion and conclusion:</b> The number of new patients regarding implant treatment has been about the same each year, and it was reconfirmed that it was recognized as a treatment method for dental prostheses. In particular, many patients wished to receive implant treatment for a single tooth missing, suggesting that the patients also recognized the importance of preserving the remaining teeth. On the other hand, the number of patients complaining of previous implant treatment tends to increase, and it is necessary to consider future correspondence. (Keyword) Oral Implant Center / implant treatment / preoperative registration (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.33.2_39 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1391975831240588672 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.33.2_39 (DOI: 10.20738/johb.33.2_39, CiNii: 1391975831240588672)
32.	Yoshihiko Ito, Guang Hong, Akito Tsuboi, Yasuhiko Kawai, Hisatomo Kondo, Taro Nomura, Suguru Kimoto, Atsuko Gunji, Asako Suzuki, Gaku Ohwada, Shunsuke Minakuchi, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Noriyuki Hoshi, Makiko Saita, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, Joji Okazaki, Takeshi Maeda, Kenichiro Nakai, Tetsuo Ichikawa, Kan Nagao, Keiko Fujimoto, Hiroshi Murata, Tadafumi Kurogi, Kazuma Takase, Masahiro Nishimura, Yasuhiro Nishi, Mamoru Murakami, Toshio Hosoi and Taizo Hamada : Multivariate analysis reveals oral health-related quality of life of complete denture wearers with denture adhesives: a multicenter randomized controlled trial, Journal of Prosthodontic Research, Vol.65, No.3, 353-359, 2021. (Summary) <p><b>Purpose </b>To investigate the difference in improvement of oral health-related quality of life (OHR-QoL) depending on the oral and denture conditions of a complete denture wearer when using a cream or powder type denture adhesive in a 10-center parallel randomized clinical trial.</p><p><b>Methods </b>Two hundred edentulous subjects who wore complete dentures were allocated to each of the three groups according to denture adhesive type: cream, powder, and control (saline solution). The materials were applied to the mucosal surface of the dentures for 4 days, and baseline data and data after the intervention were collected. OHR-QoL was assessed using the Japanese version of the modified Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT-J) scale for outcome. Multivariate analysis was used to investigate improvements in OHR-QoL according to participant characteristics among complete denture wearers using these materials.</p><p><b>Results </b>OHIP-EDENT-J scores were significantly decreased in all groups after the intervention (p < 0.05); however, there were no statistically significant differences among the groups. Multiple logistic regression analysis revealed a significant association between the vertical height of the maxillary and mandibular alveolar ridge and OHIP-EDENT-J scores in the cream-type denture adhesive group. In contrast, there were no significant association between participant characteristics and OHIP-EDENT-J scores in the powder-type adhesive and control groups.</p><p><b>Conclusions </b>The use of denture adhesives could improve OHR-QoL for complete denture wearers. The cream-type denture adhesives may be expected to improve OHR-QoL in patients with poor residual ridge conditions compared with patients with good residual ridge conditions.</p> (Keyword) Multivariate analysis / OHR-QoL / Complete denture / Denture adhesive (Link to Publication Site) ● Publication site (DOI): 10.2186/jpr.jpr_d_20_00132 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390570620393827200 ● Search Scopus @ Elsevier (DOI): 10.2186/jpr.jpr_d_20_00132 (DOI: 10.2186/jpr.jpr_d_20_00132, CiNii: 1390570620393827200)
33.	Keiko Fujimoto, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : Does Masticatory Ability Contribute to Nutritional Status in Older Individuals?, International Journal of Environmental Research and Public Health, Vol.17, No.20, 2020. (Summary) Mastication plays a primary role in the process of eating. Hence, compromised masticatory ability may affect the nutrition and quality of life, which are particularly important concerns among older individuals. It remains unclear how is the masticatory ability assessed regarding the nutritional status. We examined the effect of various oral factors on three masticatory ability tests conducted among older individuals. A total of 100 older individuals were enrolled in this study. Body mass index (BMI) as an indicator of nutritional status; and age, sex, and the number of occlusal and molar occlusal supports as clinical attributes were recorded. Three masticatory ability tests (masticatory efficiency, masticatory score, and satisfaction with mastication) were conducted, and tongue pressure, cheek pressure, and occlusal force were assessed as oral functions. A significant but weak correlation was found between masticatory efficiency and the masticatory score, but not between masticatory efficiency and satisfaction score. Objective masticatory efficiency was strongly associated with objective oral factors, whereas subjective assessments of masticatory ability (masticatory score and satisfaction score) were not. Furthermore, BMI was significantly associated with subjective assessments of masticatory ability but not with objective masticatory efficiency. Both subjective and objective assessments of masticatory ability, along with considerations of nutritional formulations, are required for the maintenance and improvement of nutritional status in older individuals. (Keyword) Aged / Female / Humans / Male / Mastication / Nutritional Status / Pressure / Quality of Life / Tongue (Tokushima University Institutional Repository) ● Metadata: 116195 (Link to Publication Site) ● Publication site (DOI): 10.3390/ijerph17207373 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33050275 ● Search Scopus @ Elsevier (PMID): 33050275 ● Search Scopus @ Elsevier (DOI): 10.3390/ijerph17207373 (Tokushima University Institutional Repository: 116195, DOI: 10.3390/ijerph17207373, PubMed: 33050275)
34.	Takaharu Goto, Takahiro Kishimoto, Yuki Iwawaki, Keiko Fujimoto, Yuichi Ishida, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : Reliability of screening methods to diagnose oral dryness and evaluate saliva secretion, Dentistry Journal, Vol.8, No.3, 2020. (Tokushima University Institutional Repository) ● Metadata: 115896 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj8030102 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85092017329 (Tokushima University Institutional Repository: 115896, DOI: 10.3390/dj8030102, Elsevier: Scopus)
35.	Takaharu Goto, Nobuaki Higaki, Takahiro Kishimoto, Yoritoki Tomotake and Tetsuo Ichikawa : Does periodontal tactile input uniquely increase cerebral blood flow in the prefrontal cortex?, Brain Sciences, Vol.10, No.8, E482, 2020. (Summary) We previously studied the effect of peripheral sensory information from sensory periodontal ligament receptors on prefrontal cortex (PFC) activity. In the dental field, an alternative dental implant without periodontal sensation can be applied for missing teeth. In this study, we examine whether periodontal tactile input could increase cerebral blood flow (CBF) in the PFC against elderly patients with dental implants lacking periodontal tactile (implant group), elderly individuals with natural teeth (elderly group), and young individuals with natural teeth (young group). The experimental task of maintaining occlusal force as closed-loop stimulation was performed. Compared with the young group, the elderly group showed significantly lower CBF. Contrastingly, compared with the young group, the implant group showed significantly lower CBF. There were no significant differences between the elderly and implant groups. Regarding the mean occlusal force value, compared with the young group and the elderly group, the implant group had a numerically, but not significantly, larger occlusal force exceeding the directed range. In conclusion, the periodontal tactile input does not uniquely increase PFC activity. However, increased CBF in the PFC due to the periodontal tactile input in the posterior region requires existing attention behavior function in the PFC. (Tokushima University Institutional Repository) ● Metadata: 115883 (Link to Publication Site) ● Publication site (DOI): 10.3390/brainsci10080482 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 32722618 ● Search Scopus @ Elsevier (PMID): 32722618 ● Search Scopus @ Elsevier (DOI): 10.3390/brainsci10080482 (Tokushima University Institutional Repository: 115883, DOI: 10.3390/brainsci10080482, PubMed: 32722618)
36.	Y Nishi, T Nomura, M Murakami, Y Kawai, M Nishimura, H Kondo, Y Ito, A Tsuboi, G Hong, S Kimoto, A Gunji, A Suzuki, G Ohwada, S Minakuchi, Y Sato, T Suzuki, K Kimoto, N Hoshi, M Saita, Y Yoneyama, Y Sato, M Morokuma, J Okazaki, T Maeda, K Nakai, Tetsuo Ichikawa, Kan Nagao, Keiko Fujimoto, H Murata, T Kurogi, K Yoshida, T Hosoi and T Hamada : Effect of denture adhesives on oral moisture: A multicenter randomized controlled trial, Journal of Prosthodontic Research, Vol.64, No.3, 281-288, 2020. (Summary) The purpose of this study was to investigate the effect of denture adhesives on oral moisture in a 10-center parallel randomized clinical trial. Two hundred edentulous subjects wearing complete dentures were allocated into three groups: cream-type adhesive, powder-type adhesive and control groups. The adhesives (and saline solution in the control group) were applied to the mucosal surface of the dentures for 4 days, and baseline data and data after the intervention for eight meals over 4 days were obtained. For the main outcome, oral moisture was measured with a moisture checking device. Secondary outcomes were denture satisfaction, masticatory performance, denture retention, and occlusal force. In addition to between-group and within-group comparisons of oral moisture, investigations for secondary outcomes were undertaken in subgroups classified according to the degree of oral moisture at baseline (normal subgroup and dry mouth subgroup). Intention-to-treat analysis was also performed. Between-group and within-group comparisons of oral moisture showed no significant differences. The cream-type and powder-type denture adhesives were significantly effective in the dry mouth group for denture satisfaction ratings of ability to masticate, stability, retention, and comfort of mandibular dentures (p<0.05). The masticatory performance and retentive force of the dry mouth denture adhesive using groups were significantly improved after intervention (p<0.05). The oral moisture of complete denture wearers was not influenced by the use of denture adhesives. Our findings showed that denture adhesives improved subjective denture satisfaction, masticatory performance, and retention for complete denture patients with oral dryness. (Keyword) Dental Cements / Denture Retention / Denture, Complete / Humans / Mastication / Mouth, Edentulous (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2019.08.004 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31501069 ● Summary page in Scopus @ Elsevier: 2-s2.0-85071848752 (DOI: 10.1016/j.jpor.2019.08.004, PubMed: 31501069, Elsevier: Scopus)
37.	Norikazu Minami, Megumi Watanabe, Lipei Liu, YUNIZAR Fadyl Mohammad and Tetsuo Ichikawa : Effect of Semaphorin7A during the Effector Phase of Nickel Allergy, Journal of Oral Health and Biosciences, Vol.33, No.1, 8-14, 2020. (Tokushima University Institutional Repository) ● Metadata: 114840 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.33.1_8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20738/johb.33.1_8 (Tokushima University Institutional Repository: 114840, DOI: 10.20738/johb.33.1_8)
38.	Kenji Maekawa, Tomoko Ikeuchi, Shoji Shinkai, Hirohiko Hirano, Masahiro Ryu, Katsushi Tamaki, Hirofumi Yatani, Takuo Kuboki, Aya Kimura-Ono, Takeshi Kikutani, Takashi Suganuma, Yasunori Ayukawa, Tomoya Gonda, Toru Ogawa, Masanori Fujisawa, Shoichi Ishigaki, Yutaka Watanabe, Akihiko Kitamura, Yoshinori Fujiwara, Ayako Edahiro, Junichi Furuya, Junko Nakajima, Kento Umeki, Kentaro Igarashi, Yasuhiro Horibe, Yoshihiro Kugimiya, Yasuhiko Kawai, Hideo Matsumura, Tetsuo Ichikawa and Shuji Ohkawa : Number of functional teeth more strongly predicts all-cause mortality than number of present teeth in Japanese older adults., Geriatrics & Gerontology International, Vol.20, No.6, 607-614, 2020. (Summary) Previous studies on the association between intraoral conditions and mortality in community-dwelling older individuals reported that fewer present teeth (PT) are significant risk factors for mortality. However, how the number of PT relative to the number of functional teeth (FT), including both present and rehabilitated teeth, influences mortality has not been investigated fully. This study examined the impact of the number of FT on mortality among community-dwelling Japanese older adults. This study was a retrospective, observational and population-based follow-up study, which examined 1188 older individuals who participated in an annual geriatric health examination from 2009 to 2015. The average follow-up period was 1697.0 774.5ays. The primary outcome was all-cause mortality at follow-up. The numbers of PT and FT of each participant were counted during an oral examination. In addition, demographics, clinical variables, blood nutrient markers, physical functions and perceived masticatory function were measured. Kaplan-Meier analysis, followed by a log-rank test, revealed that fewer PT (P < 0.001) and FT (P = 0.002) were significantly associated with a reduced survival rate. Cox's proportional hazard analysis indicated that the number of FT, but not the number of PT, was a significant independent mortality risk factor after adjusting for demographics, clinical variables, nutrient markers and physical functioning (P = 0.036, hazard ratio: 2.089). Current results suggest that the number of FT more strongly predicts all-cause mortality than the number of PT among community-dwelling older adults. Further studies are necessary to consider the confounding of socioeconomic status and disability status. Geriatr Gerontol Int 2020; : - . (Keyword) Aged / Aged, 80 and over / Diagnosis, Oral / Follow-Up Studies / Geriatric Assessment / Humans / Independent Living / Kaplan-Meier Estimate / Proportional Hazards Models / Retrospective Studies / Risk Factors / Tooth Loss (Tokushima University Institutional Repository) ● Metadata: 116528 (Link to Publication Site) ● Publication site (DOI): 10.1111/ggi.13911 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 32227400 ● Search Scopus @ Elsevier (PMID): 32227400 ● Search Scopus @ Elsevier (DOI): 10.1111/ggi.13911 (Tokushima University Institutional Repository: 116528, DOI: 10.1111/ggi.13911, PubMed: 32227400)
39.	Takashi Matsuda, Kosuke Kurahashi, Naoki Maeda, Takaharu Goto and Tetsuo Ichikawa : Geometric assessment of imaging methods for complete denture form: Comparisons among cone-beam computed tomography, desktop dental scanning, and handheld optical scanning., Journal of Prosthodontic Research, Vol.64, No.4, 485-489, 2020. (Keyword) Algorithms / Computer-Aided Design / Cone-Beam Computed Tomography / Denture, Complete / Imaging, Three-Dimensional (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2020.01.003 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 32063544 ● Search Scopus @ Elsevier (PMID): 32063544 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpor.2020.01.003 (DOI: 10.1016/j.jpor.2020.01.003, PubMed: 32063544)
40.	Misaki Ichinomiya, 藤原真治, Tetsuo Ichikawa, Takaharu Goto, Shizuko Yanagisawa and Yasuhiko Shirayama : 消滅可能性地域における後期高齢者の社会的フレイル傾向の実態と地域保健活動の可能性-美馬市木屋平の持続可能性に向けた通いの場の活用-, Journal of Shikoku Public Health Society, Vol.65, No.1, 69-75, 2020. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1010568455789506436 (CiNii: 1010568455789506436)
41.	峯篤史, 疋田一洋, 高場雅之, 澤瀬隆, 山下秀一郎, 榎並裕美子[田中], 鮎川保則, 上田貴之, 江草宏, 馬場俊輔, 笛木賢治, 槙原絵理, 横山紗和子, 大川周治, 馬場一美 and Tetsuo Ichikawa : 学生技能コンペティション「第1回JPS student clinical skills competition」, Annals of Japan Prosthodontic Society, Vol.12, No.1, 5-15, 2020. (Summary) (公社)日本補綴歯科学会は，全国の歯学部学生を対象とした臨床技能コンペティション(課題:保険収載CAD/CAM冠を想定した支台歯形成，下顎右側第二小臼歯)を開催した．26校の代表者各1名が行った支台歯形成を審査し，上位6名の学生を選出した．これらの学生を対象としたオンサイトでの最終実技審査を行い，審査結果の公表および優秀者の表彰を同日に行った．審査は形成模型のデジタルスキャンデータを使用して算出されたテーパーと削除量を参考に，評価者による総括評価とした．事後アンケートでは肯定的な回答が寄せられ，特に参加学生にとって本企画が歯科技能向上に対する研鑽意欲を喚起するものであったことが明らかになった．(著者抄録) (Keyword) 質問紙法 / 学生 / 教育評価 / コンピュータ支援設計 / 臨床能力 / 歯学大学教育 / 支台歯形成 / ヒト / 成人(19∼44) / 歯学 (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.12.5 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.12.5 (DOI: 10.2186/ajps.12.5)
42.	Hihara Tsukasa, Takaharu Goto and Tetsuo Ichikawa : Assessment of potential clinical cascade between oral hypofunction and physical frailty: Covariance structure analysis in a cross-sectional study, Journal of Oral Rehabilitation, Vol.47, No.1, 61-66, 2020. (Summary) No report has yet examined the impact of oral hypofunction on physical frailty in relation to intra-relationships of physical frailty assessment items. The purpose of this study was to verify the potential of a clinical cascade between oral hypofunction and physical frailty, and especially to support the hypothesis that the influence of oral hypofunction on physical frailty is greater than the intra-relationships among elements of physical frailty and that sex differences significantly affect these relationships. The participants were 272 older adults (101 men and 171 women; mean age 75.1 ± 7.5 years). Maximum occlusal force (MOF) and oral dryness (OD), as indicators of oral hypofunction, and grip strength (GS) and walking speed (WS), as indicators of physical frailty, were measured. Mutual relationship of four variables was verified using covariance structure analysis. In men, three paths from MOF to WS and GS and from WS to GS were confirmed, and those from MOF to WS and from WS to GS were found to be significant (P < .01). In women, three paths from MOF to WS and GS and from WS to GS were also confirmed, as with the men, and those from MOF to WS and from MOF to GS were found to be significant (P < .01). Model adaptability was shown to be good for both men and women. The results suggest our hypothesis was verified, and it is expected that the early detection of oral hypofunction, that is MOF, may be important for assessing physical frailty, especially in women. (Keyword) Aged / Aged, 80 and over / Bite Force / Cross-Sectional Studies / Female / Frail Elderly / Frailty / Geriatric Assessment / Humans / Male (Tokushima University Institutional Repository) ● Metadata: 114175 (Link to Publication Site) ● Publication site (DOI): 10.1111/joor.12862 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31332828 ● Summary page in Scopus @ Elsevier: 2-s2.0-85070675639 (Tokushima University Institutional Repository: 114175, DOI: 10.1111/joor.12862, PubMed: 31332828, Elsevier: Scopus)
43.	Tetsuo Ichikawa, Rudi Wigianto and Omar Maningo Rodis : Bibliography on Academic Exchanges of Tokushima University Faculty of Dentistry with Seven Indonesian Faculties, Journal of Oral Health and Biosciences, Vol.32, No.2, 41-47, 2020. (Summary) Tokushima University Faculty of Dentistry has signed academic agreements with seven faculties in Indonesia, and joint international meetings between these Indonesian universities have been held biannually. Moreover, undergraduate student exchange programs have been executed every year with three faculties. Behind the development of these successful outcomes is a story of a large amount of effort by pioneers. The purpose of this article is to present the process and history of the academic exchanges of Tokushima University Faculty of Dentistry with Indonesian faculties at present and to discuss future exchange programs. (Keyword) Tokushima / Indonesia / Academic exchange / Dentistry (Tokushima University Institutional Repository) ● Metadata: 114722 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.32.2_41 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390565134826274560 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.32.2_41 (Tokushima University Institutional Repository: 114722, DOI: 10.20738/johb.32.2_41, CiNii: 1390565134826274560)
44.	Kosuke Kurahashi, Takashi Matsuda, Yuichi Ishida and Tetsuo Ichikawa : Effect of polishing protocols on the surface roughness of polyetheretherketone., Journal of Oral Science, Vol.62, No.1, 40-42, 2020. (Summary) The purpose of this study was to evaluate the influence of various polishing protocols on the surface roughness of polyetheretherketone (PEEK) and identify an effective polishing method of dental prostheses at the chairside. The PEEK specimens were assigned to seven groups with different protocols: no additional polishing (NT); polishing using a rubber point (C); polishing using "silky shine" (S); polishing using "aqua blue paste" (A); protocol C followed by protocol S (CS); protocol C followed by protocol A (CA); and protocol C followed by protocols S and A (CSA). The surface roughness (Sa and Ra) of the polished surfaces was measured. The surface roughness decreased in the following order of groups: NT, C, S, CS, CSA, CA, and A. In Groups C and S, wide deep pits formed by abrasive grains of SiC paper were observed, whereas only fine linear structures were observed on the surface in other groups. With respect to the polishing protocol of PEEK, clinically acceptable surface roughness was obtained using a soft polishing brush and agent for more than 3 min. (Keyword) Dental Polishing / Ketones / Materials Testing / Polyethylene Glycols / Surface Properties (Link to Publication Site) ● Publication site (DOI): 10.2334/josnusd.18-0473 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31996521 ● Search Scopus @ Elsevier (PMID): 31996521 ● Search Scopus @ Elsevier (DOI): 10.2334/josnusd.18-0473 (DOI: 10.2334/josnusd.18-0473, PubMed: 31996521)
45.	窪木拓男, Tetsuo Ichikawa, 馬場一美, 藤澤政紀, 佐藤博信, 會田英紀, 小山重人, 秀島雅之, 佐藤裕二, 和気裕之, 大野彩, Kan Nagao, 上田順加, 玉置勝司, 貞森紳丞, 津賀一弘, 西恭宏, 澤瀬隆, 越野寿, 鱒見進一, 櫻井薫, 石橋寛二, 大山喬史, 赤川安正, 平井敏博, 佐々木啓一, 古谷野潔, 矢谷博文 and 松村英雄 : 治療の難易度を測定するプロトコルの妥当性の検討 ─(公社)日本補綴歯科学会による多施設臨床研究─, Annals of Japan Prosthodontic Society, Vol.11, No.4, 355-375, 2019. (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.11.355 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390564227333416320 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.11.355 (DOI: 10.2186/ajps.11.355, CiNii: 1390564227333416320)
46.	窪木拓男, 馬場一美, 大久保力廣, 水口俊介, Tetsuo Ichikawa and 大川周治 : (公社)日本補綴歯科学会のイノベーションロードマップを語る, Annals of Japan Prosthodontic Society, Vol.11, No.4, 281-301, 2019. (Keyword) Escherichia coli Titanium / 義歯 / 口腔疾患 / 骨密度 / 歯科インプラント / 歯科補綴 / 歯垢 / 歯根膜 / 歯槽突起 / polymer / salivary gland / 日常生活活動 / 歯科学会 / SNPs / 歯ぎしり-睡眠時 / プロバイオティクス / 骨形成因子-2 / 消化管微生物叢 / 間葉系間質細胞 / Mitochondrial Aldehyde Dehydrogenase / 口腔内細菌 / 高齢化社会 / オーラルフレイル / Homo sapiens / 歯学 (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.11.281 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001277378690304 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.11.281 (DOI: 10.2186/ajps.11.281, CiNii: 1390001277378690304)
47.	Takaharu Goto and Tetsuo Ichikawa : 高齢者における身体的能力の低下とその意識との関係:咬合力，握力，歩行速度, The Journal of the Japanese Academy of Occulusion and Health, Vol.25, No.2, 39-43, 2019. (Link to Publication Site) ● Publication site (DOI): 10.34420/jjaoh.25.2_39 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.34420/jjaoh.25.2_39 (DOI: 10.34420/jjaoh.25.2_39)
48.	Yuki Iwawaki, Takaharu Goto, Takahiro Kishimoto, Norikazu Minami, Keiko Fujimoto and Tetsuo Ichikawa : アルコール含有義歯安定剤であるホームリライナーが呼気中アルコール濃度へ与える影響の評価, Annals of Japan Prosthodontic Society, Vol.11, No.4, 376-382, 2019. (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.11.376 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001277378697088 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.11.376 (DOI: 10.2186/ajps.11.376, CiNii: 1390001277378697088)
49.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : Prefrontal cortex activity induced by periodontal afferent inputs downregulates occlusal force, Experimental Brain Research, Vol.237, No.11, 2767-2774, 2019. (Summary) The prefrontal cortex (PFC) plays an important role in several cognitive functions, such as planning, decision making, and social behavior. We previously reported that periodontal sensory input significantly increases PFC activity during the motor task of maintaining occlusal (biting) force. However, the relationships between periodontal sensation, PFC activity, and the performance of motor tasks have not been evaluated in detail. Therefore, using functional near-infrared spectroscopy, we investigated PFC activity by monitoring changes in cerebral blood flow (CBF) to specific areas of the PFC that corresponded to changes in occlusal force generated during four different biting tasks: (1) occlusion with the central incisor with an interocclusal distance of 5 mm (BI-5 mm); or (2) 10 mm (BI-10 mm); (3) occlusion with the first molars with an interocclusal distance of 5 mm (BM-5 mm), or (4) 10 mm (BM-10 mm). Occlusion of molars generated increased PFC regional CBF as the interocclusal distance decreased (BM-10 mm vs BM-5 mm). No significant differences in CBF during occlusion of incisors were found when comparing 5 mm and 10 mm intercostal distances (BI-5 mm vs BI-10 mm). The mean occlusal force generated by BM-5 mm occlusion was significantly lower than that generated by BM-10 mm occlusion. Taken together, our results suggest that the PFC decreases efferent signaling to motor units, to reduce occlusal force generated when periodontal sensation, which is greater when the interocclusal distance is reduced, is primarily responsible for maintaining occlusal force in the absence of sensations from the temporomandibular joint and muscle spindles. (Keyword) Adult / Bite Force / Cerebrovascular Circulation / Dental Occlusion / Efferent Pathways / Female / Functional Neuroimaging / Humans / Male / Periodontium / Prefrontal Cortex / Sensation / Spectroscopy, Near-Infrared / Young Adult (Tokushima University Institutional Repository) ● Metadata: 116057 (Link to Publication Site) ● Publication site (DOI): 10.1007/s00221-019-05630-y (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31440800 ● Summary page in Scopus @ Elsevier: 2-s2.0-85071327486 (Tokushima University Institutional Repository: 116057, DOI: 10.1007/s00221-019-05630-y, PubMed: 31440800, Elsevier: Scopus)
50.	Tsukasa Hihara, Takaharu Goto and Tetsuo Ichikawa : Investigating eating behaviors and symptoms of oral frailty using questionnaires, Dentistry Journal, Vol.7, No.3, 66, 2019. (Summary) A questionnaire survey was conducted to investigate eating behavior and the subjective symptoms of oral frailty, and to examine the relationship between them. A total of 744 subjects with ages over 65 years were included. The questionnaire comprised 18 question items indicating eating behavior and seven question items indicating oral frailty. All items were assessed according to 4 grades on a scale of 1 (not applicable) to 4 (applicable). The total score of oral frailty gradually increased with age. Regarding the scores for "eating recognition" and "eating habits", no changes were observed, however the scores for "eating action" demonstrated a decreasing tendency with age and the scores of 85 years age group was significantly lower than the 65-69, 70-74, and 75-79 years age groups. As a result of multiple regression analysis, among the significant independent variable, the scores of "I do not chew foods well" under the category of "eating action" showed the highest standard partial regression coefficients for dependent variable of symptoms of oral frailty. The significant association was found between the eating behavior and subjective symptoms of oral frailty, and this study suggests that the good chewing habit might be an important criterion for the prevention of oral frailty. (Tokushima University Institutional Repository) ● Metadata: 115080 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj7030066 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31261847 ● Summary page in Scopus @ Elsevier: 2-s2.0-85070095009 (Tokushima University Institutional Repository: 115080, DOI: 10.3390/dj7030066, PubMed: 31261847, Elsevier: Scopus)
51.	G Ohwada, S Minakuchi, Yuji Sato, A Tsuboi, Tetsuo Ichikawa, Kan Nagao and Keiko Fujimoto : Subjective Evaluation of Denture Adhesives: A Multicenter Randomized Controlled Trial., JDR Clinical and Translational Research, Vol.5, No.1, 50-61, 2019. (Summary) Many reports show that denture adhesives improve the retention and stability of dentures. However, few randomized controlled trials have examined the effects of denture adhesives. This 10-center randomized controlled trial with parallel groups involving 200 edentulous patients wearing complete dentures aimed to evaluate the effects of short-term use of cream and powder denture adhesives. Patients were allocated into 2 cream- and powder-type adhesive groups and 1 control group. Intervention groups were treated with the 2 adhesives (1 each), and the control group received saline solution. Adhesive or control was applied to the denture-mucosal surface for 4 d, and data at baseline and after day 4 of intervention (i.e., 8 meals) were obtained. Patient satisfaction was evaluated with a 100-mm visual analog scale. Oral health-related quality of life was measured with the Japanese version of the Oral Health Impact Profile for Edentulous Patients. Perceived chewing ability was evaluated by a questionnaire regarding ease of chewing and swallowing food. Between-group comparisons were performed with Kruskal-Wallis tests with the Mann-Whitney test adjusted by Bonferroni correction. Within-group comparisons of pre- and postintervention measurements were performed with the Wilcoxon signed-rank test. Intention-to-treat analysis was also performed. Between-group comparisons showed no significant differences for general satisfaction or Oral Health Impact Profile for Edentulous Patients. However, significant differences in satisfaction with various denture functions with cream- and powder-type adhesives were seen in pre- and postintervention comparisons ( < 0.05). Significant differences were also observed for perceived chewing ability of hard foods ( < 0.05). These results suggest that although denture adhesives do not invariably improve denture function, they do affect subjective evaluations and possibly chewing of hard foods. Therefore, the effects of denture adhesive use are insufficient to resolve any fundamental dissatisfaction with dentures ( ClinicalTrials.gov NCT01712802 ). The results of this study suggest that denture adhesives should be applied under certain conditions; however, an appropriate diagnosis is important before application. These practice-based data provide information to establish evidence-based guidelines for applying denture adhesives. (Keyword) Dental Cements / Denture Retention / Denture, Complete / Humans / Mouth, Edentulous (Link to Publication Site) ● Publication site (DOI): 10.1177/2380084419837607 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30975019 ● Search Scopus @ Elsevier (PMID): 30975019 ● Search Scopus @ Elsevier (DOI): 10.1177/2380084419837607 (DOI: 10.1177/2380084419837607, PubMed: 30975019)
52.	Yasuhiko Shirayama, 湯浅雅志, 樫森節子, Mio Kitamura, Takaharu Goto, 寺西彩, Shizuko Yanagisawa, Yuko Takeuchi, Tetsuo Ichikawa and 臼谷佐和子 : The aplication and usefulness of virtual reality aimd at encouraging an understanding of and reducing and eliminating prejudice dementia patients among local residents, Japanese Journal of Geriatrics, Vol.56, No.2, 156-163, 2019. (Summary) To demonstrate the usefulness of a virtual reality device that authentically portrays the emotions of dementia patients and their families (VR Dementia Experience) for encouraging an understanding of and reducing and eliminating prejudice towards dementia patients among local residents. In Prefecture T, Town N, 85 residents of Neighborhood A were chosen as the intervention group, and 95 residents of Neighborhood B were chosen as the non-intervention group. The VR Dementia Experience was provided only to the residents of Neighborhood A. Residents of both neighborhoods completed a 35-item questionnaire regarding their degree of understanding and prejudice towards dementia patients before and after the intervention. Seventy-seven residents of Neighborhood A and 82 residents of Neighborhood B were analyzed. Their gender, age, and pre-intervention test baseline values were equivalent in the degree of understanding and prejudice. Significant increases were observed in 9 of 35 items for Neighborhood A residents (7 understanding-related, 2 prejudice-related) and 2 items for Neighborhood B residents (1 understanding-related, 1 prejudice-related). To ascertain the usefulness of the VR Dementia Experience, we compared the number of items with a significant increase: 9/35 (25.7%) in Neighborhood A and 2/35 (5.7%) in Neighborhood B. An effect (≥ 20%) was observed among the residents of Neighborhood A. Furthermore, after exposure to the VR Dementia Experience, the connection between understanding, prejudice, and dementia was strengthened among the residents of Neighborhood A compared to the residents of Neighborhood B. The VR Dementia Experience is a useful tool for encouraging an understanding of and reducing and eliminating prejudice towards dementia patients among local residents. However, to encourage the widespread usage of the technology, we should compare results with other public awareness campaigns as well as make improvements to the device and its VR content. (Keyword) dementia / vertual reality / local residents (Link to Publication Site) ● Publication site (DOI): 10.3143/geriatrics.56.156 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31092781 ● Summary page in Scopus @ Elsevier: 2-s2.0-85066838278 (DOI: 10.3143/geriatrics.56.156, PubMed: 31092781, Elsevier: Scopus)
53.	Yuki Iwawaki, Takashi Matsuda, Kosuke Kurahashi, Tsuyoshi Honda, Takaharu Goto and Tetsuo Ichikawa : Effect of the temperature of water on ultrasonic denture cleaning, Journal of Oral Science, Vol.61, No.1, 140-145, 2019. (Summary) Denture plaque is a biofilm composed of various microorganisms aggregated with saliva. Various denture cleansers and cleaning apparatuses have been developed and studied. However, the optimum water temperature for denture cleaning is unknown. Therefore, the present study investigated the effects of water temperature during ultrasonic denture cleaning. In vitro, resin disks with artificial Candida albicans biofilm were pressed onto Candida GE media after ultrasonic cleaning with water at different temperatures for 5 min. The media were subsequently cultured at 37°C for 24 h. The colonies formed were observed and colony areas were quantified using ImageJ software (US National Institutes of Health, Bethesda, MD, USA). In situ, the bacterial count and degree of cleanliness on the tissue surface of maxillary dentures were measured before and after ultrasonic cleaning with water at different temperatures for 5 min. Changes in bacterial counts and cleanliness were calculated for each temperature. The ratio of the area occupied by bacterial colonies in vitro and reduction rates in situ after cleaning with warm water were markedly less than those observed after cleaning with cold water. Therefore, ultrasonic denture cleaning with warm water is more effective. (Keyword) Bacteria / Biofilms / Candida albicans / Colony Count, Microbial / Culture Media / Dentures / Disinfection / Hot Temperature / Ultrasonic Waves / Water (Link to Publication Site) ● Publication site (DOI): 10.2334/josnusd.17-0387 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30918210 ● Summary page in Scopus @ Elsevier: 2-s2.0-85063941566 (DOI: 10.2334/josnusd.17-0387, PubMed: 30918210, Elsevier: Scopus)
54.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 多波長植物専用LED照射装置を用いた完全制御型水耕栽培システム, LED総合フォーラム2019 in 徳島論文集, 131-136, 2019.
55.	Yuki Iwawaki, Muraoka Yuki, Higashiyama Hiroaki, Takahiro Kishimoto, Liu Lipei, Takaharu Goto and Tetsuo Ichikawa : Comparison between two assessment tests for oral hygiene: adenosine triphosphate + adenosine monophosphate swab test and bacteria number counting by dielectrophoretic impedance measurement, Dentistry Journal, Vol.7, No.1, 10, 2019. (Tokushima University Institutional Repository) ● Metadata: 115081 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj7010010 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30717111 ● Summary page in Scopus @ Elsevier: 2-s2.0-85064059150 (Tokushima University Institutional Repository: 115081, DOI: 10.3390/dj7010010, PubMed: 30717111, Elsevier: Scopus)
56.	Tetsuo Ichikawa, Kosuke Kurahashi, Lipei Liu, Takashi Matsuda and Yuichi Ishida : Use of a Polyetheretherketone Clasp Retainer for Removable Partial Denture: A Case Report, Dentistry Journal, Vol.7, No.1, 4, 2019. (Summary) Clasp retainers made of metal alloys may be esthetically unappealing or cause allergic reactions. To investigate alternative materials, we used the nonfiller polyetheretherketone (PEEK) to fabricate the clasp retainer of a removable partial denture for the mandibular bilateral distal free-end abutment of an 84-year-old female. Two years later, few color and texture changes of PEEK were found macroscopically. The rest part and the clasp arm fitted well without any deformation. There were no particular occlusal or periodontal problems. Subjective satisfaction was expressed by both the practitioner and the patient. (Tokushima University Institutional Repository) ● Metadata: 115082 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj7010004 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30609778 ● Search Scopus @ Elsevier (PMID): 30609778 ● Search Scopus @ Elsevier (DOI): 10.3390/dj7010004 (Tokushima University Institutional Repository: 115082, DOI: 10.3390/dj7010004, PubMed: 30609778)
57.	Yoritoki Tomotake, Takaharu Goto, 石田雄一, 内藤禎人, 荒井安希, 清野方子, 渡邉恵 and Tetsuo Ichikawa : 歯磨剤に配合された顆粒成分のインプラント周囲溝への侵入性の調査, Journal of Japanese Society of Oral Implantology, Vol.31, No.4, 309-319, 2018. (Link to Publication Site) ● Publication site (DOI): 10.11237/jsoi.31.309 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390564238077382016 ● Search Scopus @ Elsevier (DOI): 10.11237/jsoi.31.309 (DOI: 10.11237/jsoi.31.309, CiNii: 1390564238077382016)
58.	Takuro Baba, Takaharu Goto, Keiko Fujimoto, Hideki Suito, Kazutomo Yagi, Kan Nagao and Tetsuo Ichikawa : Geniohyoid muscle affects directly masticatory function: Evaluation using a decision tree analysis, The International Journal of Prosthodontics, Vol.31, No.6, 569-572, 2018. (Summary) To clarify the effect of geniohyoid (GH) muscle morphology and related function on masticatory ability using a decision-tree analysis. A total of 103 participants were enrolled. A cross-sectional area (CSA) of the GH muscle, neck circumference, body mass index, tongue pressure, jaw opening strength, and masticatory ability score were measured. The CSA of the GH muscle was selected as an independent variable for the first layer of the decision tree, with masticatory score as the dependent variable. These data suggest that the CSA of the GH muscle may have a large impact on the masticatory ability score when evaluating masticatory ability. (Keyword) Body Mass Index / Decision Trees / female / Humans / male / Mastication / Middle Aged / Muscle Strength / Neck Muscles / Pharyngeal Muscles / Pressure / Range of Motion, Articular (Link to Publication Site) ● Publication site (DOI): 10.11607/ijp.5862 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30408137 ● Summary page in Scopus @ Elsevier: 2-s2.0-85056396663 (DOI: 10.11607/ijp.5862, PubMed: 30408137, Elsevier: Scopus)
59.	Yoshihito Naitou, Hiromichi Yumoto, K Hs Kumar, Takashi Matsuo, Katsuhiko Hirota, Yoichiro Miyake, Kan Nagao, Yoritoki Tomotake, R Jimbo and Tetsuo Ichikawa : Antifungal and Mechanical Properties of Tissue Conditioner Containing Plant-Derived Component, --- An In Vitro Study ---, Journal of Prosthodontics, Vol.27, No.7, 665-669, 2018. (Summary) To evaluate the antifungal activity and mechanical properties of a novel antifungal tissue conditioner containing Juncus powder. Juncus powder was mixed with GC tissue conditioner at concentrations of 2.5%, 5.0%, and 10.0% by mass. The cylindrical specimens of Juncus-mixed tissue conditioner (dimensions: 10 mm in diameter and 2 and 6 mm in height for antimicrobial and mechanical tests, respectively) were prepared. The specimens placed on the bottom of the 24-well tissue culture plate were cultured with Candida albicans CAD1 for 2 and 4 days. The proliferation of the C. albicans in the wells was determined by measuring the optical density of fungal culture, and the surface of the specimens were also observed by scanning electron microscopy (SEM). To assess the mechanical properties of the specimens, the fluidity and hardness of Juncus-mixed tissue conditioner were measured using the methods certified according to ISO 10139-1. Juncus-mixed tissue conditioner significantly exhibited growth inhibitory effect in a Juncus concentration-dependent manner after both 2- and 4- day cultures. SEM observation showed that the amount of C. albicans on Juncus-mixed specimens drastically decreased, and biofilm formation was markedly inhibited. Moreover, both mechanical properties were found to be within the ranges regulated and specified by ISO. These findings demonstrated that the tissue conditioner including Juncus powder has a significant growth inhibitory effect against C. albicans, and it is suggested that the application of Juncus-mixed tissue conditioner may prevent denture stomatitis and oral candidiasis in denture wearers. (Link to Publication Site) ● Publication site (DOI): 10.1111/jopr.12546 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28901663 ● Search Scopus @ Elsevier (PMID): 28901663 ● Search Scopus @ Elsevier (DOI): 10.1111/jopr.12546 (DOI: 10.1111/jopr.12546, PubMed: 28901663)
60.	Keiko Fujimoto, Tsuyoshi Honda, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : Tongue thickness and its clinical significance, Journal of Oral Health and Biosciences, Vol.31, No.1, 32-38, 2018. (Tokushima University Institutional Repository) ● Metadata: 111934 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.31.1_32 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20738/johb.31.1_32 (Tokushima University Institutional Repository: 111934, DOI: 10.20738/johb.31.1_32)
61.	Gantumur Chimeddulam, Keisuke Nishigawa, Yoshihito Naitou, Junhel Dalanon, S Afroz, Rika Hayama, Masamitsu Ohshima, Yoritoki Tomotake, Tetsuo Ichikawa and Yoshizo Matsuka : Radiographic investigation of the marginal bone loss on dental implants, a retrospective cohort study, Journal of Oral Health and Biosciences, Vol.31, No.1, 13-24, 2018. (Summary) <b>Background:</b> During functional loading, the design of the dental implant may have an effect on the response of marginal bone.<br><b>Objectives:</b> The purpose of this study was to report the prevalence of peri-implantitis, and to compare radiographic parameters around Brånemark and Replace Select dental implants and evaluate whether disparities in the morphologic features of these two indistinct implant systems, particularly their abutment-implant attachment, had an influence on the health of surrounding tissues and marginal bone loss (MBL).<br><b>Materials and Methods:</b> Collection of data was done at the Department of Fixed Prosthodontics, the Department of Maxillo-Facial Prosthodontics, and Oral Implant Center of Tokushima University Hospital, in Tokushima, Japan; between March 2003 and followed until January 2017. Patients who have been treated with the Replace Select internal type implant and the Brånemark variety were selected as cohort. Marginal bone level measurements were evaluated via periapical and panoramic radiographs taken at regular follow-up visit. These dimensions were calculated, starting from the orientation mark at the implant abutment interface to the bottommost perceived contact area of marginal bone with the aforementioned implant system. The change in the level of bone was estimated by calculating the variation involving an initial reference value and the follow-up values.<br><b>Results:</b> An average loss of bone at 0.65 ± 1.51 mm (range 0.36 to 7.89 mm) in the Replace Select group was observed, while in the Brånemark group 0.7 ± 1.32 mm (range 0.62 to 8.64 mm) was observed. Spearman rank correlation exhibited a statistically significant positive correlation between progress of bone loss around implant body and interval from implantation in the Brånemark group, whereas in the Replace Select group it was not significant. The Brånemark group exhibited significant (P = 0.0269) negative correlation of MBL and its diameters, whereas the Replace Select group did not exhibit such correlation.<br><b>Conclusion:</b> Within the limits of this study, it can be concluded that deviations in the morphologic attributes of these two diverse implant systems had an influence on the health of surrounding tissues and MBL. The Brånemark implants showed a significant increase in MBL (> 1.8mm) as the time of placement elapses. This marked MBL was greater in females than males, in posterior than in anterior, and in the narrow platform implants than the regular platform implants or the wide platform implants. On the other hand, results suggested that this bone loss was greater in the mandible than the maxilla, in single-unit implant crowns than multiple implant restorations in the Replace Select group. (Keyword) dental implant / marginal bone loss / retrospective cohort study / implant design (Tokushima University Institutional Repository) ● Metadata: 111932 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.31.1_13 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282763020251776 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.31.1_13 (Tokushima University Institutional Repository: 111932, DOI: 10.20738/johb.31.1_13, CiNii: 1390282763020251776)
62.	Takuo Kuboki, Tetsuo Ichikawa, Kazuyoshi Baba, Masanori Fujisawa, Hironobu Sato, Hideki Aita, Shigeto Koyama, Masayuki Hideshima, Yuji Sato, Hiroyuki Wake, Aya Kimura-Ono, Kan Nagao, Yorika Kodaira, Katsushi Tamaki, Shinsuke Sadamori, Kazuhiro Tsuga, Yasuhiro Nishi, Takashi Sawase, Hisashi Koshino, Shinichi Masumi, Kaoru Sakurai, Kanji Ishibashi, Takashi Ohyama, Yasumasa Akagawa, Toshihiro Hirai, Keiichi Sasaki, Kiyoshi Koyano, Hirofumi Yatani and Hideo Matsumura : A multi-centered epidemiological study evaluating the validity of the treatment difficulty indices developed by the Japan Prosthodontic Society, Journal of Prosthodontic Research, Vol.62, No.2, 162-170, 2018. (Summary) The Japan Prosthodontic Society developed a multi-axis assessment protocol to evaluate the complex variations in patients who need prosthodontic care, and to classify the level of treatment difficulty. A previous report found the protocol to be sufficiently reliable. The purpose of this multi-center cohort study was to evaluate the validity of this multi-axis assessment protocol. The treatment difficulty was evaluated using the multi-axis assessment protocol before starting prosthodontic treatment. The time required for active prosthodontic treatment, medical resources such as treatment cost, and changes in the oral health-related QOL before and after treatment, were evaluated after treatment completion. The construct validity of this protocol was assessed by the correlation between the dentist's pre-operative subjective assessment of the treatment difficulty, and the level of difficulty determined by this protocol. The predictive validity was assessed estimating the correlations between a "comprehensive level of treatment difficulty" based on the four axes of this protocol and total treatment cost, total treatment time, and changes in the oral health-related QOL before and after treatment. The construct validity of this protocol was well documented except for psychological assessment. Regarding the predictive validity, the comprehensive level of treatment difficulty assessed before treatment was significantly correlated with the three surrogate endpoints known to be related to the treatment difficulty (total treatment cost, treatment time, and improvement in the oral health-related QOL). To further clarify the validity of the protocol according to patients' oral condition, a subgroup analysis by defects was performed. Analyses revealed that treatment difficulty assessment before treatment was significantly related to one or two surrogate endpoints in the fully edentulous patients and the partially edentulous patients. No significant relationship was observed in the patients with mixture of full/partial edentulism and the patients with teeth problems, possibly due to the small sample size in these groups. This study revealed that the multi-axis assessment protocol was sufficiently valid to predict the level of treatment difficulty in prosthodontic care in patients with fully edentulous defects and with partially edentulous defects. (Keyword) Cohort Studies / Forecasting / Humans / Japan / Mouth, Edentulous / Oral Health / Process Assessment (Health Care) / Prosthodontics / Quality of Life / Societies, Dental / Time Factors (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2017.08.002 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28916466 ● Summary page in Scopus @ Elsevier: 2-s2.0-85029155171 (DOI: 10.1016/j.jpor.2017.08.002, PubMed: 28916466, Elsevier: Scopus)
63.	Kohsuke Kurahashi, Yuki Iwawaki, Takashi Matsuda, Takaharu Goto, 石田雄一, Teruaki Ito and Tetsuo Ichikawa : Duplicate complete dentures made by general digital devices: Evaluation of material properties and clinical trial, Annals of Japan Prosthodontic Society, Vol.9, No.4, 357-364, 2017. (Summary) <p><b>Purpose:</b> The purpose of this study was to investigate the validity of the process of duplicating complete dentures using general digital devices through the following tests: cytotoxicity test of materials used, adhesion test of materials to a silicone impression material and a self-curing resin, and questionnaires to operators on duplicate dentures in clinical situations.</p><p><b>Methods: </b>The cell viability of mouse fibroblast-like cells in acrylonitrile- butadiene-styrene (ABS) and polylactic acid (PLA) were evaluated as a cytotoxicity test. The tensile strength between the silicone impression material/self-curing resin and ABS/PLA specimen was measured as adhesive strength using a universal testing machine. Six practitioners who used duplicate PLA complete dentures in 7 patients were asked to evaluate the duplicate denture using the original questionnaire.</p><p><b>Results:</b> The cytotoxicity test showed that the cell viabilities in ABS and PLA were similar to that in acrylic resin at the cell culture times of 24, 48 and 72 hours. The adhesion test showed that the adhesive strength between the ABS/PLA and silicone impression material was significantly lower than that between the conventional self-curing resin and silicone impression material. Although the adhesive strength between the PLA and self-curing resin was low, there was no significant difference between the ABS and self-curing resin. The results of the questionnaire showed that the duplicate denture made of PLA would be of similar value compared to the conventional duplicate denture made of acrylic resin.</p><p><b>Conclusions:</b> The present study suggests that the duplicate complete dentures made by our proposed digital process are clinically effective.</p> (Keyword) CAD/CAM / Duplicate denture / Complete denture / 3-dimensional printer / Digital dentistry (Tokushima University Institutional Repository) ● Metadata: 111854 (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.9.357 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205300772736 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.9.357 (Tokushima University Institutional Repository: 111854, DOI: 10.2186/ajps.9.357, CiNii: 1390001205300772736)
64.	檜原司, Takaharu Goto, Shizuko Yanagisawa, Atsuko Nakamichi and Tetsuo Ichikawa : 各年齢階層におけるオーラルフレイルと身体的フレイルに関連する兆候:アンケートによる実態調査, Japanese Journal of Gerodontology, Vol.32, No.1, 33-47, 2017. (Tokushima University Institutional Repository) ● Metadata: 111815 (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg.32.33 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679311159808 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg.32.33 (Tokushima University Institutional Repository: 111815, DOI: 10.11259/jsg.32.33, CiNii: 1390282679311159808)
65.	Sachie Wada, Takaharu Goto, Keiko Fujimoto, Megumi Watanabe, Kan Nagao, Atsuko Nakamichi and Tetsuo Ichikawa : Changes in food bolus texture during mastication, Journal of Texture Studies, Vol.48, No.2, 171-177, 2017. (Summary) The purpose of this study was to survey the changes that occur in bolus texture from intake to swallowing during the mastication process for four types of food materials and to identify how texture is related to the number of chews. We recruited 15 young Japanese participants for this study. The subjects were asked to spit the food bolus just before swallowing when eating four different foods: cracker, boiled rice, hard gelatine gel, and soft gelatine gel. Three physical properties (hardness, adhesiveness, and cohesiveness) were measured in the bolus after being chewed for 25, 50, 75, 100, and 125% of the normal number of chews. Occlusal force and pressure as well as stimulated whole saliva volume were also measured. Extensive variation in the number of chews existed between subjects, but minimal intra-subject variation was observed. Hardness was observed to decrease, whereas cohesiveness and adhesiveness increased in a chew-dependent manner for the cracker, soft gelatine gel, and hard gelatine gel, but not boiled rice. Bolus texture appears to be largely related to the number of chews. Hardness also tended to be influenced by occlusion. The adhesiveness and hardness of the boiled rice were also greatly influenced by saliva volume and occlusal force, respectively. Hardness is an important rheological factor in food bolus texture and likely plays a significant role in determining the appropriate number of chews. Adhesiveness and cohesiveness appear to be secondary factors in this process. We propose a model of oral processing for application in determining the appropriate number of chews for an individual. Hardness appears to be an important rheological factor in food bolus texture, with adhesiveness and cohesiveness being secondary aspects. When food is hard or difficult to swallow, chewing behavior will likely be more influenced by the perception of bolus texture. (Link to Publication Site) ● Publication site (DOI): 10.1111/jtxs.12228 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28370114 ● Summary page in Scopus @ Elsevier: 2-s2.0-85016757531 (DOI: 10.1111/jtxs.12228, PubMed: 28370114, Elsevier: Scopus)
66.	Kosuke Kurahashi, Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Teruaki Ito and Tetsuo Ichikawa : Duplication of complete dentures using general-purpose handheld optical scanner and 3-dimensional printer: Introduction and clinical considerations, Journal of Prosthodontic Research, Vol.61, No.1, 81-86, 2017. (Summary) To introduce a new clinical procedure for fabricating duplicates of complete dentures by bite pressure impression using digital technology, and to discuss its clinical significance. The denture is placed on a rotary table and the 3-dimensional form of the denture is digitized using a general-purpose handheld optical scanner. The duplicate denture is made of polylactic acid by a 3-dimensional printer using the 3-dimensional data. This procedure has the advantages of wasting less material, employing less human power, decreasing treatment time at the chair side, lowering the rates of contamination, and being readily fabricated at the time of the treatment visit. (Keyword) Bite Force / Computer-Aided Design / Denture Design / Denture, Complete / Humans / Printing, Three-Dimensional (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2016.06.002 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27345254 ● Summary page in Scopus @ Elsevier: 2-s2.0-85006716925 (DOI: 10.1016/j.jpor.2016.06.002, PubMed: 27345254, Elsevier: Scopus)
67.	Yoshizo Matsuka, Yoshiyuki Hagiwara, Katsushi Tamaki, Hisahiro Takeuchi, Masanori Fujisawa, Takahiro Ono, Yoshihiro Tsukiyama, Kan Nagao, Kazuhiro Tsuga, Hideki Aita, Hisatomo Kondo, Kenji Fueki, Hiroaki Tsukasaki, Keisuke Nishigawa, Shogo Ozawa, Rika Kuwatsuru, Hajime Minakuchi, Toshimitsu Iinuma, Takashi Matsuura, Kanji Ishibashi, Shigehisa Fujii, Toshihiro Hirai, Keiichi Sasaki, Hirofumi Yatani, Yoshimasa Igarashi, Yuji Sato, Tetsuo Ichikawa, Tetsuo Yamamori, Takuo Kuboki, Kazuyoshi Baba, Kiyoshi Koyano, Hironobu Sato and Matsumura Hideo : Reliability and validity of the patient disability-oriented diagnostic nomenclature system for prosthetic dentistry, Journal of Prosthodontic Research, Vol.61, No.1, 20-33, 2017. (Summary) The Japan Prosthodontic Society (JPS) has proposed a new diagnostic nomenclature system (DNS), based on pathogenesis and etiology, to facilitate and improve prosthodontic treatment. This system specifies patient disability and the causative factor (i.e. "B (disability) caused by A (causative factor)"). The purpose of this study was to examine the reliability and validity of this DNS. The JPS Clinical Guideline Committee assessed mock patient charts and formulated disease names using the new DNS. Fifty validators, comprising prosthodontic specialists and dental residents, made diagnoses using the same patient charts. Reliability was evaluated as the consistency of the disease names among the validators, and validity was evaluated using the concordance rate of the disease names with the reference disease names. Krippendorff's α was 0.378 among all validators, 0.370 among prosthodontic specialists, and 0.401 among dental hospital residents. Krippendorff's α for 10 validators (3 specialists and 7 residents) with higher concordance rates was 0.524. Two validators (1 specialist and 1 resident) with the highest concordance rates had a Krippendorff's α of 0.648. Common disease names had higher concordance rates, while uncommon disease names showed lower concordance rates. These rates did not show correlation with clinical experience of the validator or time taken to devise the disease name. High reliability was not found among all validators; however, validators with higher concordance rates showed better reliability. Furthermore, common disease names had higher concordance rates. These findings indicate that the new DNS for prosthodontic dentistry exhibits clinically acceptable reliability and validity. (Tokushima University Institutional Repository) ● Metadata: 111971 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2016.06.005 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27514568 ● Summary page in Scopus @ Elsevier: 2-s2.0-84994339218 (Tokushima University Institutional Repository: 111971, DOI: 10.1016/j.jpor.2016.06.005, PubMed: 27514568, Elsevier: Scopus)
68.	Takuro Baba, Takaharu Goto, Keiko Fujimoto, Megumi Watanabe, Tsuyoshi Honda, Kazutomo Yagi, Kan Nagao and Tetsuo Ichikawa : Age-related changes in geniohyoid muscle morphology predict reduced swallowing function, Journal of Oral Health and Biosciences, Vol.30, No.1, 18-25, 2017. (Tokushima University Institutional Repository) ● Metadata: 111064 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.30.1_18 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20738/johb.30.1_18 (Tokushima University Institutional Repository: 111064, DOI: 10.20738/johb.30.1_18)
69.	Tsuyoshi Honda, Takuro Baba, Keiko Fujimoto, Takaharu Goto, Kan Nagao, Masafumi Harada, Eiichi Honda and Tetsuo Ichikawa : Characterization of Swallowing Sound: Preliminary Investigation of Normal Subjects, PLoS ONE, Vol.11, No.12, e0168187, 2016. (Summary) The purpose of this study was to characterize the swallowing sound and identify the process of sound generation during swallowing in young healthy adults. Thirty-three healthy volunteers were enrolled and allocated into three experimental groups. In experiment 1, a microphone was attached to one of eight cervical sites in 20 subjects, participants swallowed 5 ml water, and the sound waveform was recorded. In experiment 2, 10 subjects swallowed either 0, 5, 10, or 15 ml water during audio recording. In addition, participants consumed the 5 ml bolus in two different cervical postures. In experiment 3, the sound waveform and videofluoroscopy were simultaneously recorded while the three participants consumed 5 ml iopamidol solution. The duration and peak intensity ratio of the waveform were analyzed in all experimental groups. The acoustic analysis of the waveforms and videofluoroscopy suggested that the swallowing sound could be divided into three periods, each associated with a stage of the swallowing movement: the oral phase comprising posterior tongue and hyoid bone movement; the pharyngeal phase comprising larynx movement, hyoid bone elevation, epiglottis closure, and passage of the bolus through the esophagus orifice; and the repositioning phase comprising the return of the hyoid bone and larynx to their resting positions, and reopening of the epiglottis. Acoustic analysis of swallowing sounds and videofluoroscopy suggests that the swallowing sound could be divided into three periods associated with each process of the swallowing movement: the oral phase comprising the posterior movement of the tongue and hyoid bone; the pharyngeal phase comprising the laryngeal movement, hyoid bone elevation, epiglottis closure, and the bolus passage to the esophagus orifice; and the repositioning phase comprising the repositioning of the hyoid bone and larynx, and reopening of the epiglottis. (Tokushima University Institutional Repository) ● Metadata: 111817 (Link to Publication Site) ● Publication site (DOI): 10.1371/journal.pone.0168187 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27959902 ● Summary page in Scopus @ Elsevier: 2-s2.0-85006056335 (Tokushima University Institutional Repository: 111817, DOI: 10.1371/journal.pone.0168187, PubMed: 27959902, Elsevier: Scopus)
70.	Takaharu Goto, Nobuaki Higaki, Kazutomo Yagi, Yuichi Ishida, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : An innovative masticatory efficiency test using odor intensity in the mouth as a target marker: a feasibility study, Journal of Oral Rehabilitation, Vol.43, No.12, 883-888, 2016. (Summary) A large number of studies have reported the findings for masticatory efficiency tests; however, some objective masticatory efficiency tests have a drawback, in that subjects are required to spit out the test material. This study examined the possibility of a masticatory efficiency test that evaluates the intensity of odours released when chewing an odour compound-containing material. A total of 20 volunteers were used in this study. The odour intensity in the breath after chewing a gum was measured by portable odour sensor device. The odour intensity after chewing the gum was measured over four chewing durations and at four intervals between spitting out and measurement of the odour intensity. The volume of stimulated saliva was measured by calculating the difference in the weight of the gauze before and after chewing to examine the effect of saliva flow. With an increase in chewing duration, odour intensity reduced. The odour intensity was the highest immediately after chewing. There was a positive correlation between odour intensity and gummy jelly-related masticatory efficiency test value (G-METV), which was significant for 10-s chewing. The regression equation was calculated from three objective variables of odour intensity and G-METV as dependent variable. Pearson's correlation coefficient between G-METV and the odour intensity-related masticatory efficiency value (O-METV) was 0·68. The coefficient of variation of O-METV was significantly lower than that of G-METV. These results suggest that the masticatory performance can be estimated by measuring the odour intensity immediately after chewing food containing odour compounds for 10 s. (Link to Publication Site) ● Publication site (DOI): 10.1111/joor.12444 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27658497 ● Summary page in Scopus @ Elsevier: 2-s2.0-84991648530 (DOI: 10.1111/joor.12444, PubMed: 27658497, Elsevier: Scopus)
71.	Katsuhiko Hirota, Hiromichi Yumoto, B Sapaar, Takashi Matsuo, Tetsuo Ichikawa and Yoichiro Miyake : Pathogenic factors in Candida biofilm-related infectious diseases., Journal of Applied Microbiology, Vol.122, No.2, 321-330, 2016. (Summary) Candida albicans is a commonly found member of the human microflora and is a major human opportunistic fungal pathogen. A perturbation of the microbiome can lead to infectious diseases caused by various micro-organisms, including C. albicans. Moreover, the interactions between C. albicans and bacteria are considered to play critical roles in human health. The major biological feature of C. albicans, which impacts human health, resides in its ability to form biofilms. In particular, the extracellular matrix (ECM) of Candida biofilm plays a multifaceted role and therefore may be considered as a highly attractive target to combat biofilm-related infectious diseases. In addition, extracellular DNA (eDNA) also plays a crucial role in Candida biofilm formation and its structural integrity and induces the morphological transition from yeast to the hyphal growth form during C. albicans biofilm development. This review focuses on pathogenic factors such as eDNA in Candida biofilm formation and its ECM production and provides meaningful information for future studies to develop a novel strategy to battle infectious diseases elicited by Candida-formed biofilm. (Keyword) Biofilms / Candida / Candida albicans / Candidiasis / DNA / Humans / Hyphae / quorum sensing / Respiratory Tract Infections / Virulence Factors (Link to Publication Site) ● Publication site (DOI): 10.1111/jam.13330 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27770500 ● Summary page in Scopus @ Elsevier: 2-s2.0-85005943779 (DOI: 10.1111/jam.13330, PubMed: 27770500, Elsevier: Scopus)
72.	Nobuaki Higaki, Takaharu Goto and Tetsuo Ichikawa : Periodontal tactile input activates the prefrontal cortex, Scientific Reports, Vol.6, 36893, 2016. (Summary) The prefrontal cortex (PFC) plays a role in complex cognitive behavioural planning, decision-making, and social behaviours. However, the effects of sensory integration during motor tasks on PFC activation have not been studied to date. Therefore, we investigated the effect of peripheral sensory information and external information on PFC activation using functional near-infrared spectroscopy (fNIRS). Cerebral blood flow (CBF) was increased around bilateral Brodmann areas 46 and 10 during visual and auditory information integration during an occlusal force (biting) task. After local anesthesia, CBF values were significantly decreased, but occlusal force was similar. In conclusion, the effects of peripheral sensory information from the periodontal ligament and external information have minimal impacts on occlusal force maintenance but are important for PFC activation. (Tokushima University Institutional Repository) ● Metadata: 110095 (Link to Publication Site) ● Publication site (DOI): 10.1038/srep36893 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27833164 ● Summary page in Scopus @ Elsevier: 2-s2.0-84994887706 (Tokushima University Institutional Repository: 110095, DOI: 10.1038/srep36893, PubMed: 27833164, Elsevier: Scopus)
73.	Yuichi Ishida, Kumer Kiran, Takaharu Goto, Megumi Watanabe, Wigianto Rudi, Kan Nagao and Tetsuo Ichikawa : Magnet-retained two-mini-implant overdenture: Clinical and mechanical consideration., Dentistry Journal, Vol.4, No.4, 35, 2016. (Summary) Two-implant overdentures have become the accepted treatment for restoring mandibular edentulism. The dimensions of regular implants sometimes limit their use, such as in the case of narrow ridges. Mini-implants with reduced diameters (less than 3.0 mm) enable insertion into narrow ridges. A magnet-retained two-mini-implant overdenture system was developed and is described in this paper. Additionally, we describe a clinical mandibular procedure using the system and evaluate its biomechanical performance. (Tokushima University Institutional Repository) ● Metadata: 111819 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj4040035 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 29563477 ● Search Scopus @ Elsevier (PMID): 29563477 ● Search Scopus @ Elsevier (DOI): 10.3390/dj4040035 (Tokushima University Institutional Repository: 111819, DOI: 10.3390/dj4040035, PubMed: 29563477)
74.	Keiko Fujimoto, Norikazu Minami, Takaharu Goto, Yuichi Ishida, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : Hardness, cohesiveness, and adhesiveness of oral moisturizers and denture adhesives: selection criteria for denture wearers., Dentistry Journal, Vol.4, No.4, 34, 2016. (Summary) The mechanical properties of seven denture adhesives and eight oral moisturizers, all of which are commercially available, were evaluated using a texture pro le analysis. A new assessment chart is proposed for the selection criteria of denture adhesive and oral moisturizers using a radar chart with three axes: hardness, cohesiveness, and adhesiveness. (Tokushima University Institutional Repository) ● Metadata: 111818 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj4040034 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 29563476 ● Search Scopus @ Elsevier (PMID): 29563476 ● Search Scopus @ Elsevier (DOI): 10.3390/dj4040034 (Tokushima University Institutional Repository: 111818, DOI: 10.3390/dj4040034, PubMed: 29563476)
75.	Takashi Matsuda, Takaharu Goto, Kazutomo Yagi, Toshiya Kashiwabara and Tetsuo Ichikawa : Part-digitizing system of impression and interocclusal record for complete denture fabrication, Journal of Prosthodontics, Vol.25, No.6, 503-509, 2016. (Summary) Few studies have reported the application of digital technology to removable dentures, particularly for the process of impression and interocclusal recording for complete denture fabrication. This article describes a part-digitizing system of impression and interocclusal records for complete denture fabrication. The denture foundation area in an edentulous mouth, including the border areas and residual ridge, is outlined by tracing the surfaces with a 3-D pen-type digitizer. Specialized trays for final impressions and interocclusal records were generated using computer-aided design and manufactured using the digital data. Final impression and interocclusal records were carried out using these specialized trays. The computer-aided method using preliminary digital impressions and specialized trays would be feasible for clinical use for complete denture fabrication. (Link to Publication Site) ● Publication site (DOI): 10.1111/jopr.12375 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 26619371 ● Summary page in Scopus @ Elsevier: 2-s2.0-84987923289 (DOI: 10.1111/jopr.12375, PubMed: 26619371, Elsevier: Scopus)
76.	Tetsuo Ichikawa, Yoritoki Tomotake, Toyoko Tajima, Yoshihito Naitou, Yuji Shimizu and Yuichi Ishida : Glass-fiber Reinforced 3-unit Metal-less Bridge: Short-term Preliminary Results, Journal of Oral Health and Biosciences, Vol.28, No.2, 55-62, 2016. (Summary) Mechanical strength to withstand occlusal force is required to the crown restorations of molars. Ag-Pd-Au alloy has been used as the acceptable material of the National Health Insurance system in Japan. However, the metallic color of prosthesis does not meet the aesthetic requirements of the patients, and there is also a problem to the provider side of the treatment that the price fluctuation is large by soaring material costs. A fiber reinforced metal-less bridge is proposed to resolve these problems and we began clinical application of this prosthetic treatment from September, 2012 on the approval of Tokushima University Hospital ethics committee. So far, six patients have been treated with 8 fiber reinforced bridges, and this treatment in Tokushima University Hospital was approved in Shikoku Regional Bureau of Health and Welfare as the advanced medical. We have followed the treatment for a maximum of more than two years, and it has been passed successfully with patient's satisfaction. Slightly problems which were caused in the hybrid resin material, could be easily solved by the direct procedures. This clinical results in short term suggested that the fiber reinforced metalless bridge have a sufficiently high therapeutic effect as a prosthetic method. (Keyword) 高強度コンポジットレジンブリッジ / グラスファイバー補強 / 金属代替材料 (Tokushima University Institutional Repository) ● Metadata: 109869 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050020697877560832 (Tokushima University Institutional Repository: 109869, CiNii: 1050020697877560832)
77.	Takashi Matsuda, Takaharu Goto, Kosuke Kurahashi, Toshiya Kashiwabara, Megumi Watanabe, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : Digital assessment of preliminary impression accuracy for edentulous jaws: Comparisons of 3-dimensional surfaces between study and working casts, Journal of Prosthodontic Research, Vol.60, No.3, 206-212, 2016. (Summary) The aim of this study was to compare 3-dimensional surfaces of study and working casts for edentulous jaws and to evaluate the accuracy of preliminary impressions with a view to the future application of digital dentistry for edentulous jaws. Forty edentulous volunteers were serially recruited. Nine dentists took preliminary and final impressions in a routine clinical work-up. The study and working casts were digitized using a dental 3-dimensional scanner. The two surface images were superimposed through a least-square algorithm using imaging software and compared qualitatively. Furthermore, the surface of each jaw was divided into 6 sections, and the difference between the 2 images was quantitatively evaluated. Overall inspection showed that the difference around residual ridges was small and that around borders were large. The mean differences in the upper and lower jaws were 0.26mm and 0.45mm, respectively. The maximum values of the differences showed that the upward change mainly occurred in the anterior residual ridge, and the downward change mainly in the posterior border seal, and the labial and buccal vestibules, whereas every border of final impression was shortened in the lower jaw. The accuracy in all areas except the border, which forms the foundation, was estimated to be less than 0.25mm. Using digital technology, we here showed the overall and sectional accuracy of the preliminary impression for edentulous jaws. In our clinic, preliminary impressions have been made using an alginate material while ensuring that the requisite impression area was covered. (Tokushima University Institutional Repository) ● Metadata: 109708 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2015.12.007 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 26822762 ● Summary page in Scopus @ Elsevier: 2-s2.0-84957824113 (Tokushima University Institutional Repository: 109708, DOI: 10.1016/j.jpor.2015.12.007, PubMed: 26822762, Elsevier: Scopus)
78.	Yuichi Ishida, 藤本けい子, 檜垣宜明, Takaharu Goto and Tetsuo Ichikawa : 審美歯治療のエンドポイントと評価方法, Annals of Japan Prosthodontic Society, Vol.8, No.2, 161-166, 2016.
79.	Takashi Matsuda, Takaharu Goto, Kosuke Kurahashi, Toshiya Kashiwabara and Tetsuo Ichikawa : Development of a digital impression procedure using photogrammetry for complete denture fabrication, International Journal of Computerized Dentistry, Vol.19, No.3, 193-202, 2016. (Summary) We developed an innovative procedure for digitizing maxillary edentulous residual ridges with a photogrammetric system capable of estimating three-dimensional (3D) digital forms from multiple two-dimensional (2D) digital images. The aim of this study was to validate the effectiveness of the photogrammetric system. Impressions of the maxillary residual ridges of five edentulous patients were taken with four kinds of procedures: three conventional impression procedures and the photogrammetric system. Plaster models were fabricated from conventional impressions and digitized with a 3D scanner. Two 3D forms out of four forms were superimposed with 3D inspection software, and differences were evaluated using a least squares best fit algorithm. The in vitro experiment suggested that better imaging conditions were in the horizontal range of ± 15 degrees and at a vertical angle of 45 degrees. The mean difference between the photogrammetric image (Form A) and the image taken from conventional preliminarily impression (Form C) was 0.52 ± 0.22 mm. The mean difference between the image taken of final impression through a special tray (Form B) and Form C was 0.26 ± 0.06 mm. The mean difference between the image taken from conventional final impression (Form D) and Form C was 0.25 ± 0.07 mm. The difference between Forms A and C was significantly larger than the differences between Forms B and C and between Forms D and C. The results of this study suggest that obtaining digital impressions of edentulous residual ridges using a photogrammetric system is feasible and available for clinical use. (Keyword) Aged / Aged, 80 and over / Anatomic Landmarks / Computer-Aided Design / Dental Impression Technique / Dental Models / Denture Design / Denture, Complete / Feasibility Studies / Female / Humans / Image Processing, Computer-Assisted / Imaging, Three-Dimensional / Jaw, Edentulous / Male / Maxilla / Photogrammetry (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27644177 ● Search Scopus @ Elsevier (PMID): 27644177 (PubMed: 27644177)
80.	Yuki Iwawaki, Noriko Mizusawa, Takeo Iwata, Nobuaki Higaki, Takaharu Goto, Megumi Watanabe, Yoritoki Tomotake, Tetsuo Ichikawa and Katsuhiko Yoshimoto : MiR-494-3p induced by compressive force inhibits cell proliferation in MC3T3-E1 cells., Journal of Bioscience and Bioengineering, Vol.120, No.4, 456-462, 2015. (Summary) Mechanical stimuli regulate fundamental cell processes such as proliferation, differentiation, and morphogenesis. We attempted to identify microRNA (miRNA) whose expression is changed during compressive treatment in MC3T3-E1, a pre-osteoblastic cell line. Microarray analysis followed by reverse transcription-quantitative polymerase chain reaction revealed that compressive force at 294 Pa for 24 h in MC3T3-E1 cells increased levels of miR-494-3p, miR-146a-5p, miR-210-3p, and miR-1247-3p. Among these miRNAs, miR-494-3p was found to inhibit cell proliferation in MC3T3-E1 cells. Furthermore, cells subjected to compressive force showed slower cell growth compared with control cells. Levels of mRNA for fibroblast growth factor receptor 2 (FGFR2) and Rho-associated coiled-coil kinase 1 (ROCK1), which were predicted to be targets of miR-494-3p, were decreased by compressive force or overexpression of miR-494-3p mimics in MC3T3-E1 cells. Furthermore, binding sites of miR-494-3p within 3'-untranslated regions of Fgfr2 and Rock1 were determined using luciferase reporter assay. In conclusion, compressive force affected expressions of several miRNAs including miR-494-3p in MC3T3-E1 cells. Compressive force might inhibit cell proliferation in osteoblasts by up-regulating miR-494-3p followed by FGFR2 and ROCK1 gene repressions. (Keyword) 3' Untranslated Regions / Cell Line / Cell Proliferation / Down-Regulation / Gene Expression Regulation / Humans / Luciferases / MicroRNAs / Oligonucleotide Array Sequence Analysis / Osteoblasts / RNA, Messenger / Receptor, Fibroblast Growth Factor, Type 2 / Reverse Transcriptase Polymerase Chain Reaction / Stress, Mechanical / Up-Regulation / rho-Associated Kinases (Tokushima University Institutional Repository) ● Metadata: 109479 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jbiosc.2015.02.006 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25795570 ● Summary page in Scopus @ Elsevier: 2-s2.0-84938332268 (Tokushima University Institutional Repository: 109479, DOI: 10.1016/j.jbiosc.2015.02.006, PubMed: 25795570, Elsevier: Scopus)
81.	Prananingrum Widyasri, Yoshihito Naitou, Yoritoki Tomotake, Toyoko Tajima and Tetsuo Ichikawa : モールドレスプロセスによるチタン多孔体のインプラント上部構造への応用, Journal of Japanese Society of Oral Implantology, Vol.28, 305, 2015.
82.	Yoritoki Tomotake, Yuki Iwawaki, Takaharu Goto, 西中英伸 and Tetsuo Ichikawa : インプラント上部構造における前装材破折と主機能部位との関連について, Journal of Japanese Society of Oral Implantology, Vol.28, No.3, 326-333, 2015. (Link to Publication Site) ● Publication site (DOI): 10.11237/jsoi.28.326 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205510925824 ● Search Scopus @ Elsevier (DOI): 10.11237/jsoi.28.326 (DOI: 10.11237/jsoi.28.326, CiNii: 1390001205510925824)
83.	Tsuyoshi Honda, Keiko Fujimoto, Takuro Baba, Kan Nagao, Akira Takahashi and Tetsuo Ichikawa : Swallowing sound waveform and its clinical significance: Evaluation using ultrasonography, Journal of Oral Health and Biosciences, Vol.28, No.1, 21-27, 2015. (Summary) Background: Cervical auscultation is a technique frequently used for the screening of dysphagia. However, this method is difficult to evaluate objectively and it is unclear how sound is generated during the swallowing process. The aim of this study was to analyze the waveform of swallowing sound and clarify the sound production process using recordings of swallowing sounds and ultrasound images (USI), performed simultaneously.Materials and Methods: Commercial natural spring water and natural carbonated water were used in experiments 1 and 2, respectively. In experiment 1, a microphone was attached to the skin of the neck of 20 young participants and swallowing sounds were recorded and analyzed. In experiment 2, swallowing processes in three participants were recorded by a medical ultrasonography apparatus. The ultrasonic probe was placed on the skin over one of the thyroid cartilages or the thyroid gland.Results: The swallowing sound wave (SSW) was divided into three sectional periods. The mean duration of the first, second, and third SSW was 210 ± 147 ms, 458 ± 113 ms, and 91 ± 61 ms, respectively. The mean intensity ratio of the first, second, and third SSW was 7.8 ± 5.2, 29.2 ± 16.5,and 5.8 ± 5.1, respectively. When the ultrasonic probe was placed on the skin over one of the thyroid cartilages, in the phase between the production of the second SSW and the silent period, the USI revealed an accumulation of swallowed material around the valleculae and oropharynx. In the silent period of the second SSW, the swallowed material accumulated around the hypopharynx. When the ultrasonic probe was placed on the skin over the thyroid gland, in the silent period of the second SSW, the USI revealed that the swallowed material had passed through esophagus.Conclusion: Waveform and USI findings from this study suggest that swallowing sound can be divided into three sectional periods: an oral phase, a pharyngeal phase, and a repositioning phase. (Keyword) Dysphagia / Swallowing sound / Ultrasonography (Tokushima University Institutional Repository) ● Metadata: 109865 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520854805705094272 (Tokushima University Institutional Repository: 109865, CiNii: 1520854805705094272)
84.	Yuichi Ishida, Keiko Fujimoto, Nobuaki Higaki, Takaharu Goto and Tetsuo Ichikawa : End points and assessments in esthetic dental treatment., Journal of Prosthodontic Research, Vol.59, No.4, 229-235, 2015. (Summary) There are two key considerations for successful esthetic dental treatments. This article systematically describes the two key considerations: the end points of esthetic dental treatments and assessments of esthetic outcomes, which are also important for acquiring clinical skill in esthetic dental treatments. The end point and assessment of esthetic dental treatment were discussed through literature reviews and clinical practices. Before designing a treatment plan, the end point of dental treatment should be established. The section entitled "End point of esthetic dental treatment" discusses treatments for maxillary anterior teeth and the restoration of facial profile with prostheses. The process of assessing treatment outcomes entitled "Assessments of esthetic dental treatment" discusses objective and subjective evaluation methods. Practitioners should reach an agreement regarding desired end points with patients through medical interviews, and continuing improvements and developments of esthetic assessments are required to raise the therapeutic level of esthetic dental treatments. (Keyword) Clinical Competence / Dental Prosthesis / Endpoint Determination / Esthetics, Dental / Humans / Maxilla / Outcome Assessment (Health Care) / Tooth (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2015.05.002 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 26077379 ● Search Scopus @ Elsevier (PMID): 26077379 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpor.2015.05.002 (DOI: 10.1016/j.jpor.2015.05.002, PubMed: 26077379)
85.	Tetsuo Ichikawa : 認知症患者の歯科的対応および歯科治療のあり方学会の立場表明2015, 日本老年歯科医学, Vol.30, No.1, 3-11, 2015.
86.	Takaharu Goto, Atsuko Nakamichi, Megumi Watanabe, Kan Nagao, Miwa Matsuyama and Tetsuo Ichikawa : Influence of food volume per mouthful on chewing and bolus properties, Physiology & Behavior, Vol.141, 58-62, 2015. (Summary) Behaviors relating to food intake, i.e., speed of chewing, number of chews, and bite size, are important for decreasing energy intake, which might reduce excess body weight and thus metabolic risk. This study aimed at investigating the influence of mouthful volume on the number of chews and food bolus properties in addition to clarifying appropriate eating behaviors related to mouthful volume. Fifteen young Japanese women volunteered to participate. The subjects were asked to spit the food bolus in a glass dish just before swallowing when eating 3 different foods: boiled rice, fish sausage, and peanuts. The 3 physical properties of solidity, adhesiveness, and cohesiveness were measured in the bolus, and the number of chews was noted. The number of chews significantly increased with increasing mouthful volume with all 3 foods; conversely, the number of chews per unit of food weight (g) decreased significantly with boiled rice and fish sausage. Trends were observed for solidity and cohesiveness, which varied with increasing mouthful volumes. Decreased mouthful volume resulted in a greater number of chews per weight of food and more appropriate bolus properties; therefore, a change in mouthful volume could be a useful behavior modification for regulation of energy intake. (Keyword) Eating / Energy Intake / Feeding Behavior / Female / Food / Humans / Mastication / Young Adult (Link to Publication Site) ● Publication site (DOI): 10.1016/j.physbeh.2015.01.007 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25582518 ● Summary page in Scopus @ Elsevier: 2-s2.0-84921058803 (DOI: 10.1016/j.physbeh.2015.01.007, PubMed: 25582518, Elsevier: Scopus)
87.	Takashi Matsuda, Takaharu Goto, 柏原稔也 and Tetsuo Ichikawa : Literature Review of Setting the Occlusal Plane for Edentulous Patients, Journal of Oral Health and Biosciences, Vol.28, No.1, 13-19, 2015. (Summary) The maxillomandibular registration is one of important processes to achieve patientsatisfaction with the function and esthetics for complete denture fabrication. Over the years, clinical decision of vertical and horizontal jaw relationship has been mainly discussed in the maxillomandibular registration. With regard to the occlusal plane setting, many clinicians have believed to decide the occlusal plane parallel to Camper's plane, however there is little information on the effect of occlusal plane setting on clinical meanings and outcome. The aim of this study is to analyze published literature focusing on the occlusal plane and the related oral function and esthetics, and to clarify clinical implications of occlusal plane setting. Two databases, "PubMed" and "Japana Centra Revuo Medicina" were searched to retrieve research papers focusing on the occlusal plane.Seventy four papers were selected from the database, and they were reviewed.Literature reviews suggests that many landmarks were described on the occlusal plane setting for edentulous patients; and Camper's plane has been most frequently referred, showed a good result in function, but not always good in esthetics. The influence of occlusal plane setting on clinical results: oral function, esthetics, denture stability, and patient satisfaction after denture delivery has to be examined. (Keyword) 咬合平面 / 無歯顎 / カンペル平面 (Tokushima University Institutional Repository) ● Metadata: 109864 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050865122807695488 (Tokushima University Institutional Repository: 109864, CiNii: 1050865122807695488)
88.	Takaharu Goto, Kan Nagao, Yuichi Ishida, Yoritoki Tomotake and Tetsuo Ichikawa : Influence of female attachment installation load on movement and resultant forces in implant overdentures, Journal of Prosthodontics, Vol.24, No.2, 156-163, 2015. (Summary) This in vitro study investigated the effect of attachment installation conditions on the load transfer and denture movements of implant overdentures, and aims to clarify the differences among the three types of attachments, namely ball, Locator, and magnet attachments. Three types of attachments, namely ball, Locator, and magnetic attachments were used. An acrylic resin mandibular edentulous model with two implants placed in the bilateral canine regions and removable overdenture were prepared. The two implants and bilateral molar ridges were connected to three-axis load-cell transducers, and a universal testing machine was used to apply a 50 N vertical force to each site of the occlusal table in the first molar region. The denture movement was measured using a G(2) motion sensor. Three installation conditions, namely, the application of 0, 50, and 100 N loads were used to install each attachment on the denture base. The load transfer and denture movement were then evaluated. The resultant force decreased with increasing installation load for all attachments. In particular, the resultant force on implants on the loading side of the Locator attachment significantly decreased when the installation load was increased from 0 to 50 N, and that for magnetic attachment significantly decreased when the installation load was increased from 50 to 100 N. For the residual ridges on the loading side, the direction of the forces for all attachments changed to downward with increasing installation load. Furthermore, the yaw Euler angle increased with increasing installation load for the magnetic attachment. Subject to the limitations of this study, the use of any installation load greater than 0 N is recommended for the installation of ball and Locator attachments on a denture base. Regarding magnetic attachments, our results also recommend installation on a denture base using any installation load greater than 0 N, and suggest that the resultant force acting on the implant can be decreased by increasing the installation load; however, a large installation load of 100 N should be avoided when installing the attachment on the denture base to avoid increasing the denture movement. (Link to Publication Site) ● Publication site (DOI): 10.1111/jopr.12177 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 24975368 ● Summary page in Scopus @ Elsevier: 2-s2.0-84923081891 (DOI: 10.1111/jopr.12177, PubMed: 24975368, Elsevier: Scopus)
89.	Atsuko Nakamichi, Takaharu Goto and Tetsuo Ichikawa : Evaluation of Eating Behavior and Mouthful Volume: Validity of YN Eating Behavior Questionnaire, Journal of Oral Health and Biosciences, Vol.27, No.2, 71-80, 2015. (Summary) We created a simple questionnaire to promote better eating habits and behavioral modification for the prevention and improvement of metabolic syndrome, examined its reliability and validity, and finally, assessed its effectiveness. A questionnaire, comprising of eighteen items to promote behavioral modification, was prepared comprising of three factors, "dietary recognition" , "eating habits" and "eating action" and was developed based on data from 125 students at the Faculty of Dentistry, The University of Tokushima. Furthermore, to assess the effectiveness of this version of the questionnaire, we conducted a survey on 845 health-care providers in Tokushima Prefecture and Hyogo Prefecture. The results confirmed a relatively high internal consistency with a Cronbach's alpha coefficient of 0.735–0.762 for the three factors. The questionnaire scores in the "obese" group with a body mass index of 25 or higher were high for all three factors and a significant difference was noted between the "normal" and "thin" groups under the category of "dietary awareness" . Moreover, trends between men and women; and between age groups were ascertained, therefore suggesting that this questionnaire is effective in assessing eating behavior associated with obesity. (Keyword) BMI / 一口量 / 質問票 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050865122807699072 (CiNii: 1050865122807699072)
90.	Tetsuo Ichikawa, Takaharu Goto, Yuki Iwawaki, 檜垣宣明 and Yoshihito Naitou : 補綴装置および歯の延命のために(Part 6) 力のコントロール力を受ける生体側の観点から, Annals of Japan Prosthodontic Society, Vol.7, No.4, 357-362, 2015. (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.7.357 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.7.357 (DOI: 10.2186/ajps.7.357)
91.	Nobuaki Higaki, Takaharu Goto, Yuichi Ishida, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : Do sensation differences exist between dental implants and natural teeth?: a meta-analysis., Clinical Oral Implants Research, Vol.25, No.11, 1307-1310, 2014. (Summary) The purpose of this systematic review was to survey evidence pertaining to the sensation differences between natural teeth and osseointegrated dental implants. Using the MEDLINE (online PubMed) database, Cochrane Library, and Scientific Citation index, we performed a systematic search of articles. We used the following search terms: "perception or sensation and dental implant." The systematic review of the extracted articles was performed to see the sensation differences between natural teeth and dental implants. A total of six studies on oral sensation, "tactile sensibility," and "thickness discrimination" were included in the meta-analysis. As to the "tactile sensibility", all studies indicated the threshold levels of the implants were about 4-20 times higher than that of natural teeth. The tactile sensibility of an implant was significantly higher than that of a natural tooth, with an standardized mean difference (SMD) of 8.3619 (95% CI, 6.3920-10.3317) and a P < 0.0001. As to the "thickness discrimination", all studies indicated the threshold levels of implants were about 1.2-2.3 times higher than that of natural teeth. The thickness discrimination was significantly higher than that of natural teeth with an SMD of 1.2368 (95% CI, 0.8699-1.6038) and a P < 0.0001. This meta-analysis suggested that both tactile sensibility and thickness discrimination thresholds of implants were significantly higher than those of natural teeth. This meta-analysis reconfirms that sensation differences between dental implants and natural teeth exist. (Link to Publication Site) ● Publication site (DOI): 10.1111/clr.12271 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25279692 ● Search Scopus @ Elsevier (PMID): 25279692 ● Search Scopus @ Elsevier (DOI): 10.1111/clr.12271 (DOI: 10.1111/clr.12271, PubMed: 25279692)
92.	Yoshihito Naitou, Ryo Jimbo, Matthew S Bryington, Stefan Vandeweghe, Bruno Chrcanovic, Nick Tovar, Tetsuo Ichikawa, Coelho G. Paulo and Ann Wennerberg : The Influence of 1α.25-Dihydroxyvitamin D3 Coating on Implant Osseointegration in the Rabbit Tibia, Journal of Oral & Maxillofacial Research, Vol.5, No.3, e3, 2014. (Summary) This study aims to evaluate bone response to an implant surface modified by 1α,25-dihydroxyvitamin D3 [1.25-(OH)2D3] in vivo and the potential link between 1.25-(OH) 2D3 surface concentration and bone response. Twenty-eight implants were divided into 4 groups (1 uncoated control, 3 groups coated with 1.25-(OH)2D3 in concentrations of 10(-8), 10(-7) and 10(-6) M respectively), placed in the rabbit tibia for 6 weeks. Topographical analyses were carried out on coated and uncoated discs using interferometer and atomic-force-microscope (AFM). Twenty-eight implants were histologically observed (bone-to-implant-contact [BIC] and new-bone-area [NBA]). The results showed that the 1.25-(OH)2D3 coated implants presented a tendency to osseointegrate better than the non-coated surfaces, the differences were not significant (P > 0.05). The effect of 1.25-(OH)2D3 coating to implants suggested possible dose dependent effects, however no statistical differences could be found. It is thought that the base substrate topography (turned) could not sustain sufficient amount of 1.25-(OH)2D3 enough to present significant biologic responses. Thus, development a base substrate that can sustain 1.25-(OH)2D3 for a long period is necessary in future studies. (Link to Publication Site) ● Publication site (DOI): 10.5037/jomr.2014.5303 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25386230 ● Search Scopus @ Elsevier (PMID): 25386230 ● Search Scopus @ Elsevier (DOI): 10.5037/jomr.2014.5303 (DOI: 10.5037/jomr.2014.5303, PubMed: 25386230)
93.	Atsuko Nakamichi, Miwa Matsuyama and Tetsuo Ichikawa : Relationship between mouthful volume and number of chews in young Japanese females, Appetite, Vol.83, 327-332, 2014. (Summary) Objective: Modification of eating behavior in Japan is promoted to prevent overweight and obesity, but the effects of such modifications are unclear. This study aimed to clarify the inter- and intra-individual relationship between bite size and number of chews of food. Design and methods: Subjects comprised of 50 young healthy Japanese women (mean age 19.5 years). Food materials were boiled rice and apple. First, the average bite size and the number of chews per mouthful of food were calculated across the study cohort. The number of chews was counted by the subjects themselves and then self-reported. Correlation between the individual one-bite volume and the number of chews per volume was analyzed using Spearman's rank correlation coefficient. Second, the number of chews for three different sized bites of food (half of one bite, one bite, and one-and-a-half bites) were calculated as a prospective observational study. The number of chews for each of the three volumes of food was compared using one way ANOVA with Bonferroni correction. Results: For both food types, there was a negative correlation between individual mouthful volume and number of chews for both food materials. The number of chews per volume decreased as bite sizes increased. Conclusion: This study demonstrated an inter- and intra-individual relationship between bite size and the number of chews and suggested that smaller bite sizes were associated with more chews per volume of food. (Keyword) Mouthful volume / Chewing / Eating behavior / Health promotion (Tokushima University Institutional Repository) ● Metadata: 106328 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.appet.2014.08.009 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25131904 ● Search Scopus @ Elsevier (PMID): 25131904 ● Search Scopus @ Elsevier (DOI): 10.1016/j.appet.2014.08.009 (Tokushima University Institutional Repository: 106328, DOI: 10.1016/j.appet.2014.08.009, PubMed: 25131904)
94.	東岡紗知江, 比嘉仁司, Tsuyoshi Honda, Atsuko Nakamichi, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : Considerations on Olfactory Stimulus of <i>Citrus sudachi</i> and Thermo Stimulus to Promote Salivary Secretion, Japanese Journal of Gerodontology, Vol.29, No.1, 3-10, 2014. (Summary) In Japan, a country with an aging population, hyposalivation is becoming a serious problem among the elderly. The purpose of this study was to develop a new method for promoting salivary secretion using the olfactory stimulus of <i>Citrus sudachi</i>, artificial sudachi fragrance, and the combined use of artificial sudachi fragrance with thermo stimulus. Olfactory stimulus of <i>Citrus sudachi</i> is known as a safe stimulus that can stimulate salivary secretion of patients before food intake. However, <i>Citrus sudachi</i> is a seasonal fruit, so its effect was compared to that of artificial sudachi fragrance. The amount of saliva was recorded to evaluate the effect among 94 healthy adult participants who signed an informed consent form approved by the Research Ethics Committee of Tokushima University Hospital (#1283). Since olfactory stimulus easily fades, thermo stimulus was used because it is known to increase salivary secretion continuously. Thus,the effect of artificial sudachi fragrance combined with thermo stimulus using a hot pack on three different parts of the body (eyes, submandibular, chest) was also examined. Changes in salivary secretion was recorded for 1 hour after the stimulation. Results showed that artificial sudachi fragrance increased salivary secretion as much as <i>Citrus sudachi</i>. There was no significant difference between the olfactory stimuli of artificial sudachi fragrance when used alone, and when used in combination with thermo stimulus. However, it was observed that the stimulus which increased salivary secretion the most in 50 minutes was the olfactory stimulus with thermo stimulus on the submandibular. It can therefore be said that the combined use of olfactory stimulus with thermo stimulus is useful when saliva secretion becomes a concern among the elderly, especially at the start of food intake. (Keyword) salivation / thermo stimulus / smell / Citrus sudachi (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg.29.3 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204334751744 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg.29.3 (DOI: 10.11259/jsg.29.3, CiNii: 1390001204334751744)
95.	Ashrin Nur Meinar, Rieko Arakaki, Akiko Yamada, Tomoyuki Kondo, Mie Kurosawa, Yasusei Kudo, Megumi Watanabe, Tetsuo Ichikawa, Yoshio Hayashi and Naozumi Ishimaru : A critical role for thymic stromal lymphopoietin in nickel-induced allergy in mice., The Journal of Immunology, Vol.192, No.9, 4025-4031, 2014. (Summary) Ni is the most frequent cause of contact allergy induced by metals. However, the underlying mechanism of this induction is unknown. Our previous research demonstrates that activation of dendritic cells (DCs) through p38MAPK/MKK6 is required for Ni-induced allergy in mice. In the current study, we investigated the cellular and molecular mechanisms underlying Ni-induced allergy using a mouse model that involves injecting Ni into the ear, with or without Freund's incomplete or complete adjuvants. Nickel had greater potential to cause allergic reactions compared with palladium and gold. Among the proteins expressed at higher levels in mice with Ni-induced allergy, we focused on thymic stromal lymphopoietin (TSLP), which is produced in abundance by keratinocytes. We detected increased expression of the TSLP receptor (TSLPR) in DCs from cervical lymph nodes of mice with Ni-induced allergy, suggesting that DCs in ear tissues were activated through TSLPR signaling induced by keratinocyte-derived TSLP. Furthermore, delayed-type hypersensitivity reactions in mice with Ni-induced allergy were decreased significantly by injection of a Tslp-short interfering RNA along with atelocollagen in the ear skin. These results suggest that Ni allergy may be triggered by a TSLP/TSLPR-mediated interaction between epithelial and immune cells. (Keyword) Animals / Blotting, Western / Cytokines / Dendritic Cells / Disease Models, Animal / Enzyme-Linked Immunosorbent Assay / Female / Flow Cytometry / Hypersensitivity / Immunoglobulins / immunohistochemistry / Mice / Mice, Inbred C57BL / Nickel / Oligonucleotide Array Sequence Analysis / RNA, Small Interfering / Real-Time Polymerase Chain Reaction / Receptors, Cytokine / Reverse Transcriptase Polymerase Chain Reaction (Link to Publication Site) ● Publication site (DOI): 10.4049/jimmunol.1300276 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 24670797 ● Summary page in Scopus @ Elsevier: 2-s2.0-84899557087 (DOI: 10.4049/jimmunol.1300276, PubMed: 24670797, Elsevier: Scopus)
96.	B Sapaar, A Nur, Katsuhiko Hirota, Hiromichi Yumoto, Keiji Murakami, T Amoh, Takashi Matsuo, Tetsuo Ichikawa and Yoichiro Miyake : Effects of extracellular DNA from Candida albicans and pneumonia-related pathogens on Candida biofilm formation and hyphal transformation., Journal of Applied Microbiology, Vol.116, No.6, 1531-1542, 2014. (Summary) The aim of this study was to investigate the effects of genomic DNA purified from Candida albicans and pneumonia-related pathogens, Pseudomonas aeruginosa and Staphylococcus aureus, on in vitro biofilm formation and morphological change of 3 Candida species (C. albicans, C. glabrata, and C. tropicalis). Biofilm formation was evaluated by the crystal violet assay and colony-forming unit counts. Morphological characteristics of biofilms were evaluated by scanning electron microscopy and fluorescence microscopy. Addition of DNA at a low concentration (<1·0 μg ml(-1)) significantly increased biofilm mass of all three Candida species. In contrast, the addition of DNA at a high concentration (10 μg ml(-1)) decreased the biofilm mass. Interestingly, the formation of hyphae in a dense network of yeast cells was observed in C. albicans biofilms exposed to a low concentration of DNA (<1·0 μg ml(-1)). These findings demonstrated that extracellular DNA (eDNA) plays a crucial role in Candida biofilm formation and suggested that eDNA may induce the morphological transition from yeast to hyphal growth form during C. albicans biofilm development. A novel therapy targeting eDNA may be applicable for Candida infection to decrease biofilm formation and hyphal formation. (Link to Publication Site) ● Publication site (DOI): 10.1111/jam.12483 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 24661775 ● Summary page in Scopus @ Elsevier: 2-s2.0-84900806168 (DOI: 10.1111/jam.12483, PubMed: 24661775, Elsevier: Scopus)
97.	Yoshihito Naitou, Takayuki Terukina, Silvia Galli, Yusuke Kozai, Stefan Vandeweghe, Tatsuaki Tagami, Tetsuya Ozeki, Tetsuo Ichikawa, Paulo G. Coelho and Ryo Jimbo : The effect of simvastatin-loaded polymeric microspheres in a critical size bone defect in the rabbit calvaria., International Journal of Pharmaceutics, Vol.461, No.1-2, 157-162, 2014. (Summary) The present study describes the development of a microsphere capsule based on polylactide-co-glycolide (PLGA) loaded with simvastatin that was subsequently incorporated into synthetic bone cement. The osteogenic effect of simvastatin-loaded bone cement was in a critical sized defect in vivo to test the hypothesis the biologic response would be different depending on the dosage of simvastatin applied to bone cement. Our results showed that simvastatin loaded PLGA microspheres can be successfully obtained through O/W emulsion/solvent evaporation method with appropriate morphologic characteristics and high encapsulation efficiency for incorporation in bone cements. The biodegradable characteristic of the microspheres successfully presented a slow release and the duration of the release lasted for more than 1 month. The in vivo experiment revealed that the microspheres containing simvastatin significantly enhanced bone formation in the rabbit calvaria critical size defect. (Keyword) Implant dentistry / biomaterials / drug deliverly system (Link to Publication Site) ● Publication site (DOI): 10.1016/j.ijpharm.2013.11.046 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 24296045 ● Summary page in Scopus @ Elsevier: 2-s2.0-84890281303 (DOI: 10.1016/j.ijpharm.2013.11.046, PubMed: 24296045, Elsevier: Scopus)
98.	Takanori Kawano, Widyasri Prananingrum, Yuichi Ishida, Takaharu Goto, Yoshihito Naitou, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : Blue-violet laser modification of titania treated titanium: antibacterial and osteo-inductive effects, PLoS ONE, Vol.8, No.12, e84327, 2013. (Summary) Many studies on surface modifications of titanium have been performed in an attempt to accelerate osseointegration. Recently, anatase titanium dioxide has been found to act as a photocatalyst that expresses antibiotic properties and exhibits hydrophilicity after ultraviolet exposure. A blue-violet semiconductor laser (BV-LD) has been developed as near-ultraviolet light. The purpose of this study was to investigate the effects of exposure to this BV-LD on surface modifications of titanium with the goal of enhancing osteoconductive and antibacterial properties. The surfaces of pure commercial titanium were polished with #800 waterproof polishing papers and were treated with anatase titania solution. Specimens were exposed using BV-LD (λ = 405 nm) or an ultraviolet light-emitting diode (UV-LED, λ = 365 nm) at 6 mW/cm(2) for 3 h. The surface modification was evaluated physically and biologically using the following parameters or tests: surface roughness, surface temperature during exposure, X-ray diffraction (XRD) analysis, contact angle, methylene blue degradation tests, adherence of Porphyromonas gingivalis, osteoblast and fibroblast proliferation, and histological examination after implantation in rats. No significant changes were found in the surface roughness or XRD profiles after exposure. BV-LD exposure did not raise the surface temperature of titanium. The contact angle was significantly decreased, and methylene blue was significantly degraded. The number of attached P. gingivalis organisms was significantly reduced after BV-LD exposure compared to that in the no exposure group. New bone was observed around exposed specimens in the histological evaluation, and both the bone-to-specimen contact ratio and the new bone area increased significantly in exposed groups. This study suggested that exposure of titanium to BV-LD can enhance the osteoconductivity of the titanium surface and induce antibacterial properties, similar to the properties observed following exposure to UV-LED. (Link to Publication Site) ● Publication site (DOI): 10.1371/journal.pone.0084327 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 24358355 ● Summary page in Scopus @ Elsevier: 2-s2.0-84892924993 (DOI: 10.1371/journal.pone.0084327, PubMed: 24358355, Elsevier: Scopus)
99.	Kan Nagao, Takaharu Goto, Yuichi Ishida, Tetsuo Ichikawa, M Hideshima, H Koshino, K Hoshiai and Y Umekawa : Should Occlusal Pressure be Applied in Fixing Magnet Assenmlies to Denture? An Evaluation using the Delphi Technique, The Journal of the Japanese Sociaty of Magnetic Applications in Dentistry, Vol.22, No.2, 43-46, 2013.
100.	Takaharu Goto, Yuichi Ishida, Kan Nagao and Tetsuo Ichikawa : Long-term follow-up case reports on the use of magnetic attachment as intracoronal/extracoronal attachments, The Journal of the Japanese Sociaty of Magnetic Applications in Dentistry, Vol.22, No.2, 12-14, 2013.
101.	Tetsuo Ichikawa, Takaharu Goto and Yoritoki Tomotake : Stress Analysis of Magnet-Retained Mini-Implant Overdenture:InVitro Study, Journal of Japanese Society of Oral Implantology, Vol.26, No.4, 660-667, 2013. (Summary) The purpose of this study was to evaluate stress analysis of a magnet-retained mini-implant overdenture on an in vitro mandibular model. Mini implants less than 3.0 mm in diameter have been used as not only provisional use, but also permanent use to support overdentures.<br/>Four mini implants (MagDen Fixture MFI4010RF, Shinwon Dental, Seoul, Korea) were placed in edentulous regions between bilateral canines in an acrylic resin mandibular model and the abutments (MagDen Keeper MFK4020, Shinwon Dental, Seoul, Korea) for magnet attachments were used. Seven strain gauges were attached on the resin surface around the right side of two mini implants. The surface of the model was covered with silicone impression material to simulate oral mucosa and an experimental complete denture was placed on the model. A vertical force of 50 N was applied to either one of the premolar, first molar and second molar of the experimental denture using a universal testing machine. <br/>When four mini implants were supported, compressive strains were caused at the lingual side of the distal mini implant. The more posterior the loading point was, the lower the strain around the implant was generally. Although tensile strain was caused at the buccal side of the mesial mini implant, it decreased at the moment when compressive strain arose. When four implants were supported, the strain around the mini implants was distributed more evenly than those in the two implant-supported ones. The influence of implant positioning was examined by removing either two mesial or two distal attachments in the four mini implants. The maximum strain in two mesial implant-supported attachments was smaller than that in two distal implant-supported attachments. (Keyword) mini implant / stress analysis / magnetic attachment / overdenture / strain (Link to Publication Site) ● Publication site (DOI): 10.11237/jsoi.26.660 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680483292160 ● Search Scopus @ Elsevier (DOI): 10.11237/jsoi.26.660 (DOI: 10.11237/jsoi.26.660, CiNii: 1390282680483292160)
102.	Toshiya Kashiwabara, Takeyoshi Yoneyama, Atsuko Nakamichi, Tsuyoshi Honda, Sachie Toko, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : In Vitro Efficacy of Electrolyzed Dilute Sodium Hypochlorite Solution on Candidal Biofilm, Japanese Journal of Gerodontology, Vol.28, No.3, 277-283, 2013. (Summary) The effectiveness of oral care interventions for preventing aspiration pneumonia and barriers to compromised elderly is universally-recognized in present medical practice. Quick and effective methods and materials are needed for oral health care. An electrolyzed dilute sodium hypochlorite solution was chosen as a sterilizing solution for oral health care and the sterilizing effect was evaluated using an in vitro candida biofilm. Three electrolyzed functional waters, namely strongly alkaline water, weakly acidic water, dilute sodium hypochlorite solution, two kinds of commercial mouth wash and distilled water were used as test solutions. Antibiofilm efficacy and residual chlorine concentration were evaluated before/after immersing candidal biofilm specimens in each solution. pH changes of the solutions and macroscopic observations of metal surface were evaluated before/after immersing three kinds of dental metals: steel bar, cobalt-chromium alloy and gold-silver-palladium alloy in the solutions to test the corrosion behavior. An electrolyzed dilute sodium hypochlorite solution showed high bactericidal capability of candida biofilm on cell desks and stable concentration of available chlorine, but high induction of metal corrosion. (Keyword) electrolyzed dilute sodium hypochlorite solution / proteolytic / functional water / Candida biofilm / oral health care (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg.28.277 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204333083520 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg.28.277 (DOI: 10.11259/jsg.28.277, CiNii: 1390001204333083520)
103.	Megumi Watanabe and Tetsuo Ichikawa : Analysis of Small GTPases in Dendritic Cells and Keratinocytes in Nickel Allergy Mouse Model, 2013.
104.	Yoshizo Matsuka, 萩原芳幸, 玉置勝司, Hisahiro Takeuchi, 藤澤政紀, 小野高裕, 築山能大, Kan Nagao, 津賀一弘, 會田英紀, 近藤尚知, 笛木賢治, 塚崎弘明, 石橋寛二, 藤井重壽, 平井敏博, 佐々木啓一, 矢谷博文, 五十嵐順正, Yuji Sato, Tetsuo Ichikawa, 松村英雄, 山森徹雄, 窪木拓男, 馬場一美 and 古谷野潔 : Reliability and validity of diagnostic nomenclature system of prosthetic dentistry, Annals of Japan Prosthodontic Society, Vol.5, No.3, 281-290, 2013. (Summary) Purpose: The Japan Prosthodontic Society (a public interest incorporated association) proposed a new diagnostic nomenclature system method that is based on pathogenesis and etiology for providing adequate prosthodontic treatment to patients. This diagnostic nomenclature system is based on "factor" and "disability", and assumes that a disability is caused by a factor. The aim of this study was to analyze the reliability and validity of several dentists' diagnoses on mock patient charts.Methods: The Clinical Guideline Committee of the Japan Prosthodontic Society made mock patient charts and decided the disease name with the new diagnosis system. Fifty evaluators (prosthodontic specialists and hospital residents) answered the disease name with the new diagnosis system. The reliability and validity of the diagnoses were analyzed.Results: Krippendorff's α, which evaluates the reliability, was 0.378 (prosthodontic specialists) and 0.401 (hospital residents). The value was 0.524 with the top 10 evaluators, and 0.628 with the top 2 evaluators. There was no difference between the prosthodontic specialists and hospital residents in the correct answer rate. The correct answer rate for common dental diseases was high and that for uncommon dental diseases was low. Moreover, there was no relation between the correct answer rate and answering time or years of experience.Conclusion: The reliability of the answers among all evaluators was not high, but it was high among the evaluators who showed a high correct answer rate in this study. The correct answer rate for common dental diseases was high and that for uncommon dental diseases was low. (Keyword) Prosthodontic diagnosis / factor / disability / reliability / validity (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.5.281 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205301084416 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.5.281 (DOI: 10.2186/ajps.5.281, CiNii: 1390001205301084416)
105.	Hideki Suito, Yuki Iwawaki, Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : Oral factors affecting titanium elution and corrosion: an in vitro study using simulated body fluid., PLoS ONE, Vol.8, No.6, e66052, 2013. (Summary) Ti, which is biocompatible and resistant to corrosion, is widely used for dental implants, particularly in patients allergic to other materials. However, numerous studies have reported on Ti allergy and the in vitro corrosion of Ti. This study investigated the conditions that promote the elution of Ti ions from Ti implants. Specimens of commercially pure Ti, pure nickel, a magnetic alloy, and a gold alloy were tested. Each specimen was immersed in a simulated body fluid (SBF) whose pH value was controlled (2.0, 3.0, 5.0, 7.4, and 9.0) using either hydrochloric or lactic acid. The parameters investigated were the following: duration of immersion, pH of the SBF, contact with a dissimilar metal, and mechanical stimulus. The amounts of Ti ions eluted were measured using a polarized Zeeman atomic absorption spectrophotometer. Eluted Ti ions were detected after 24 h (pH of 2.0 and 3.0) and after 48 h (pH of 9.0). However, even after 4 weeks, eluted Ti ions were not detected in SBF solutions with pH values of 5.0 and 7.4. Ti elution was affected by immersion time, pH, acid type, mechanical stimulus, and contact with a dissimilar metal. Elution of Ti ions in a Candida albicans culture medium was observed after 72 h. Elution of Ti ions in the SBF was influenced by its pH and by crevice corrosion. The results of this study elucidate the conditions that lead to the elution of Ti ions in humans, which results in implant corrosion and Ti allergy. (Keyword) Body Fluids / Candida albicans / Corrosion / Dental Alloys / Humans / Hydrogen-Ion Concentration / Ions / Solutions / Stress, Mechanical / titanium (Link to Publication Site) ● Publication site (DOI): 10.1371/journal.pone.0066052 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 23762461 ● Summary page in Scopus @ Elsevier: 2-s2.0-84878805527 (DOI: 10.1371/journal.pone.0066052, PubMed: 23762461, Elsevier: Scopus)
106.	Tetsuo Ichikawa, Yoritoki Tomotake and Takaharu Goto : A Literature Review on the Perception of Implants : Comparison with Natural Teeth, Journal of Japanese Society of Oral Implantology, Vol.26, No.2, 272-280, 2013. (Keyword) perception / dental implants / sensation (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205505687168 (CiNii: 1390001205505687168)
107.	Yoshihito Naitou, Jiyon Be, Yoritoki Tomotake, Kenichi Hamada, Kenzo Asaoka and Tetsuo Ichikawa : Formability and mechanical properties of porous titanium produced by a moldless process, Journal of Biomedical Materials Research. Part B, Applied Biomaterials, Vol.101, No.6, 1090-1094, 2013. (Summary) Tailor-made porous titanium implants show great promise in both orthopedic and dental applications. However, traditional powder metallurgical processes require a high-cost mold, making them economically unviable for producing unique devices. In this study, a mixture of titanium powder and an inlay wax binder was developed for moldless forming and sintering. The formability of the mixture, the dimensional changes after sintering, and the physical and mechanical properties of the sintered porous titanium were evaluated. A 90:10 wt % mixture of Ti powder and wax binder was created manually at 70°C. After debindering, the specimen was sintered in Ar at 1100°C without any mold for 1, 5, and 10 h. The shrinkage, porosity, absorption ratio, bending and compressive strength, and elastic modulus were measured. The bending strength (135-356 MPa), compression strength (178-1226 MPa), and elastic modulus (24-54 GPa) increased with sintering time; the shrinkage also increased, whereas the porosity (from 37.1 to 29.7%) and absorption ratio decreased. The high formability of the binder/metal powder mixture presents a clear advantage for fabricating tailor-made bone and hard tissue substitution units. Moreover, the sintered compacts showed high strength and an elastic modulus comparable to that of cortical bone. (Keyword) Biocompatible Materials / Compressive Strength / Dental Implants / Elastic Modulus / Humans / Materials Testing / Metallurgy / Porosity / Prostheses and Implants / titanium (Link to Publication Site) ● Publication site (DOI): 10.1002/jbm.b.32919 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 23559484 ● Summary page in Scopus @ Elsevier: 2-s2.0-84880509056 (DOI: 10.1002/jbm.b.32919, PubMed: 23559484, Elsevier: Scopus)
108.	Hideki Suito, Takaharu Goto, 岩脇有軌, Yoritoki Tomotake and Tetsuo Ichikawa : 磁性アッタチメントを用いたミニインプラントオーバーデンチャーの力学的解析, Journal of Japanese Society of Oral Implantology, Vol.26, No.4, 660-667, 2013.
109.	Takuo Kuboki, Tetsuo Ichikawa, Kazuyoshi Baba, Masayuki Hideshima, Yuji Sato, Hiroyuki Waki, Kan Nagao, Yorika Ueda, Aya Oono, Katsushi Tamaki, Kazuhiro Tsuga, Kaoru Sakurai, Hironobu Sato, Kanji Ishibashi, Hirofumi Yatani, Takashi Oyama, yasumasa Akagawa, Toshihiro Hirai, Keiichi Sasaki and Kiyoshi Koyano : A Multi-Centered Epidemiological Study Evaluating the Reliability of the Treatment Difficulty Indices Developed by the Japan Prosthodontic Sociaty, Annals of Japan Prosthodontic Society, Vol.5, No.2, 224-239, 2013. (Keyword) diagnosis / prosthodontics / quality assurance / treatment outcome / patient risk profile (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.5.224 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.5.224 (DOI: 10.2186/ajps.5.224)
110.	Yoshihito Naitou, Ashrin N. Meinar, Yuki Iwawaki, Toshiya Kashiwabara, Takaharu Goto, Teruaki Ito, Tetsuro Sakuma and Tetsuo Ichikawa : Recording of individual identification information on dental prostheses using fluorescent material and ultraviolet light, The International Journal of Prosthodontics, Vol.26, No.2, 172-174, 2013. (Summary) The placement of individual identification on a prosthesis is very important for forensic dentistry and traceability. This article describes the unique naming/labeling of dentures with information for individual identification using a method in which information is invisible under natural light but visible under ultraviolet light-emitting diode/black light exposure. The use of laser beam machining with this method will enable the recording of a large amount of information. (Keyword) Acrylic Resins / Composite Resins / Dental Materials / Denture Bases / Denture Design / Denture Identification Marking / Fluorescent Dyes / Forensic Dentistry / Humans / Image Processing, Computer-Assisted / Lasers / surface properties / Ultraviolet Rays (Link to Publication Site) ● Publication site (DOI): 10.11607/ijp.3350 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 23476913 ● Summary page in Scopus @ Elsevier: 2-s2.0-84879189814 (DOI: 10.11607/ijp.3350, PubMed: 23476913, Elsevier: Scopus)
111.	Hideki Suito, Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : 固定方法からみたインプラント上部構造の臨床的・文献的考察, Shikoku Dental Research, Vol.25, No.2, 39-46, 2013. (Summary) As the connection mechanism between the superstructure and implant, the cement-retained type and screw-retained type are mainly used. The choice of a screw-retained versus a cement-retained superstructure is a complex and comprehensive decision involving many points of consideration. On the other hand, various retained methods that is complementary with each retained type have been proposed. In this article, various retained types which have been reported in the literatures and developed by us, were systematically assorted from the standpoints of retreivability, and the advantages were pointed out showing case photographs. This systematical information would help the selection of retained type of the superstructure. (Keyword) 上部構造 / 固定方法 / 固定性 / 可撤性 / 系統的分類 (Tokushima University Institutional Repository) ● Metadata: 109827 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050020697877581056 (Tokushima University Institutional Repository: 109827, CiNii: 1050020697877581056)
112.	Takaharu Goto, Hidenobu Nishinaka, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : Main occluding area in partially edentulous patients: changes before and after implant treatment, Journal of Oral Rehabilitation, Vol.39, No.9, 677-683, 2012. (Summary) The 'main occluding area', the location where food crushing occurs during the first stroke of mastication, is reported to be an important concept; however, it is currently limited to findings in individuals with normal dentition. The purpose of this study was to assess the changes in the location, area and bite force of the main occluding area before and after implant treatments. We enrolled 50 partially edentulous and 22 normally dentate subjects. To identify the location of the main occluding area, each subject was instructed to freely bite once on a dental stopping using the partially edentulous side or the normally dentate area. The location, occluding contact area and bite force of the main occluding area before and after the implant treatments were analysed. The main occluding area was located at a reproducible location in the partially edentulous and normally dentate subjects. This location was principally the first molar region, and for the partially edentulous patients with missing teeth in the molar regions, it moved from the premolar region to the first molar region after treatment. The occluding contact area and bite force for the main occluding area increased (P < 0·05) after the implant treatment in the partially edentulous patients with missing teeth in the molar regions. These results suggest that the main occluding area can be restored to the first molar region after implant treatment and may be an important factor in the assessment of prosthodontic treatment. (Keyword) Bite Force / Case-Control Studies / Dental Implants / Denture, Partial / Female / Humans / Jaw, Edentulous, Partially / Male / Mastication / Middle Aged / Treatment Outcome (Link to Publication Site) ● Publication site (DOI): 10.1111/j.1365-2842.2012.02318.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22672204 ● Search Scopus @ Elsevier (PMID): 22672204 ● Search Scopus @ Elsevier (DOI): 10.1111/j.1365-2842.2012.02318.x (DOI: 10.1111/j.1365-2842.2012.02318.x, PubMed: 22672204)
113.	Atsuko Nakamichi, Takaharu Goto, 東岡紗知江, Miwa Matsuyama and Tetsuo Ichikawa : The Survey on a General Youth's Eating Behavior, Journal of Japanese Society for Mastication Science and Health Promotion, Vol.22, No.1, 26-35, 2012. (Keyword) Eating behavior questionnaire / Obese / BMI / Number of chewing strokes (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1572543026038718848 (CiNii: 1572543026038718848)
114.	Jing Li, Katsuhiko Hirota, Takaharu Goto, Hiromichi Yumoto, Yoichiro Miyake and Tetsuo Ichikawa : Biofilm formation of Candida albicans on implant overdenture materials and its removal., Journal of Dentistry, Vol.40, No.8, 686-692, 2012. (Summary) The purposes of this study were to clarify the surface characteristics of various implant overdenture materials and the capabilities of Candida albicans adherence and biofilm formation on these surfaces, and to investigate the role of salivary mucin in biofilm formation. Seven commonly used implant and restorative materials were assessed. The surface roughness averages of all materials were limited to 0.07-0.10μm. Contact angles and salivary mucin absorption were measured. After 90-min initial adhesion and 2-day biofilm formation, the amounts of C. albicans were determined by counting colony-forming units and the morphological characteristics were observed by scanning electron microscopy (SEM). The effects of saliva coating and the influences of material surface property on initial adhesion, biofilm formation and its removability were analysed by univariate two-way analysis of variance and multiple linear regression analysis. Surface contact angle of materials, the index of hydrophobicity, was found to be correlated positively with initial adhesion and biofilm formation of C. albicans. A negative correlation between mucin absorption and removability of Candida biofilm indicates that mucin plays an important role in biofilm formation and its rigidity. SEM observation also revealed fewer Candida cells on saliva-coated Ti than on saliva-coated hydroxyapatite or acrylic resin. The materials with different hydrophobic property and compositions display diverse manners of salivary mucin absorption, initial adhesion and biofilm formation. The hydrophobic materials encourage enhanced initial adhesion, subsequently resulting in the active biofilm formation. Mucin has decisive effects on Candida immobilization and biofilm development on the materials. Surface hydrophilic property and composition of materials and salivary proteins, especially mucin, affect the process of Candida biofilm formation and influence the amount and rigidity of formed biofilm. The present data may be applied as a reference for selecting materials in implant overdenture treatment from a microbiological point of view. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jdent.2012.04.026 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22580351 ● Search Scopus @ Elsevier (PMID): 22580351 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jdent.2012.04.026 (DOI: 10.1016/j.jdent.2012.04.026, PubMed: 22580351)
115.	Seiko Hongama, Kan Nagao, Sachie Toko, Kyuma Tanida, Masatake Akutagawa, Yohsuke Kinouchi and Tetsuo Ichikawa : MI sensor-aided screening system for assessing swallowing dysfunction: Application to the repetitive saliva-swallowing test, Journal of Prosthodontic Research, Vol.56, No.1, 53-57, 2012. (Summary) Assessment of swallowing dysfunction, particularly the risk of aspiration, is extremely important to clinicians because it provides crucial information for preventing morbidity and mortality from dysphagia. The purpose of this study was to describe a magneto-impedance sensor-aided screening system (MISS) for assessing swallowing function and clarify its effectiveness with the repetitive saliva-swallowing test (RSST). An MI sensor attached to the skin over the sternum detected the distance from a magnet attached to the skin over the thyroid cartilage during swallowing as the change of magnetic fields. The MISS was validated by videofluoroscopic and videoendoscopic observations. Further, the swallowing behavior of 93 individuals was assessed by using the MISS and then analyzed with the RSST. Swallowing behavior can be recorded and investigated objectively by signal inspection in the MISS compared with the conventional methods. The MISS is a simple and straightforward method for recording and safe because of dry swallow. The MISS system was validated by using simultaneous recordings with videofluoroscopic or videoendoscopic examinations, and compared with the conventional RSST method. The MISS combined with the RSST is an effective screening test for swallowing function. (Keyword) Adult / Aged / Aged, 80 and over / Deglutition / Deglutition Disorders / Electric Impedance / Female / Humans / Magnets / Male / Middle Aged / Prosthodontics / Saliva / Young Adult (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2011.04.003 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21646056 ● Search Scopus @ Elsevier (PMID): 21646056 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpor.2011.04.003 (DOI: 10.1016/j.jpor.2011.04.003, PubMed: 21646056)
116.	Tetsuo Ichikawa, Kan Nagao and Takaharu Goto : Alternative Decision Making Considerations in Prosthodontics, The International Journal of Prosthodontics, Vol.25, No.3, 260-261, 2012. (Keyword) Decision Making / Evidence-Based Dentistry / Humans / Patient Participation / Prosthodontics (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22545255 ● Search Scopus @ Elsevier (PMID): 22545255 (PubMed: 22545255)
117.	Chen Rong Jian, Yoritoki Tomotake, Megumi Watanabe, Yuichi Ishida, Kan Nagao and Tetsuo Ichikawa : Telescopic Magnetic Attachment for Implant-Supported Denture: Evaluation of Splint Effect, The International Journal of Oral & Maxillofacial Implants, Vol.26, No.3, 657-664, 2011. (Summary) Retrievability, connecting strength, and ease of laboratory work are important but conflicting prerequisites for the success of an implant superstructure, particularly with regard to immediate function. To resolve this issue, a telescopic magnetic attachment system has been developed for implant-supported removable dentures. The splinting effect of the attachment was evaluated for stress distribution and elevation with an in vitro model of three implants in an edentulous mandible. Two types of telescopic magnetic attachments were prepared; the inclination angles of the axial wall of the abutment were 2.5 and 6.0 degrees. Three types of three-unit superstructures--a screw-retained superstructure and two telescopic magnet-retained superstructures--were fabricated. Static loads of 24.5, 49, and 98 N were applied vertically at three loading points on one side of each occlusal table. The elevation was measured as the height at which the magnet-retained superstructure detached from the abutment (on the other side of the prosthesis). In addition, by means of strain gauges, the stress distribution around the implants was evaluated and compared among the superstructures with the same three loads applied at six different points. The magnet-retained superstructure with the axial wall inclined at 2.5 degrees did not detach from the abutment. The differences in stress distribution between the screw-retained and magnet-retained superstructures with a 2.5-degree inclination were found to be statistically insignificant. The magnet-retained superstructure with a 6-degree inclination detached from the abutment, and the stress was concentrated during loading to a cantilever site. Because of its stress distribution and elevation, the new telescopic magnetic attachment, which has properties such as splinting the implants, ease of fabrication, and retrievability, is expected to be a viable alternative for the retention of implant-supported removable dentures. (Keyword) Dental Abutments / Dental Clasps / Dental Implantation, Endosseous / Dental Implants / Dental Models / Dental Prosthesis Design / Dental Prosthesis, Implant-Supported / Dental Stress Analysis / Denture Retention / Humans / Magnetics / Mandible / Materials Testing / Statistics, Nonparametric / Stress, Mechanical / Time Factors (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21691614 ● Search Scopus @ Elsevier (PMID): 21691614 (PubMed: 21691614)
118.	Megumi Watanabe, Naozumi Ishimaru, Meinar Nur Ashrin, Rieko Arakaki, Akiko Yamada, Tetsuo Ichikawa and Yoshio Hayashi : A Novel DC Therapy with Manipulation of MKK6 Gene on Nickel Allergy in Mice, PLoS ONE, Vol.6, No.4, E19017, 2011. (Summary) BACKGROUND: Although the activation of dermal dendritic cells (DCs) or Langerhans cells (LCs) via p38 mitogen-activated protein kinase (MAPK) plays a crucial role in the pathogenesis of metal allergy, the in vivo molecular mechanisms have not been identified and a possible therapeutic strategy using the control of dermal DCs or LCs has not been established. In this study, we focused on dermal DCs to define the in vivo mechanisms of metal allergy pathogenesis in a mouse nickel (Ni) allergy model. The effects of DC therapy on Ni allergic responses were also investigated. METHODS AND FINDING: The activation of dermal DCs via p38 MAPK triggered a T cell-mediated allergic immune response in this model. In the MAPK signaling cascade in DCs, Ni potently phosphorylated MAP kinase kinase 6 (MKK6) following increased DC activation. Ni-stimulated DCs could prime T cell activation to induce Ni allergy. Interestingly, when MKK6 gene-transfected DCs were transferred into the model mice, a more pronounced allergic reaction was observed. In addition, injection of short interfering (si) RNA targeting the MKK6 gene protected against a hypersensitivity reaction after Ni immunization. The cooperative action between T cell activation and MKK6-mediated DC activation by Ni played an important role in the development of Ni allergy. CONCLUSIONS: DC activation by Ni played an important role in the development of Ni allergy. Manipulating the MKK6 gene in DCs may be a good therapeutic strategy for dermal Ni allergy. (Keyword) Animals / Blotting, Western / Female / Flow Cytometry / Hypersensitivity / Immunohistochemistry / Langerhans Cells / MAP Kinase Kinase 6 / Mice / Mice, Inbred C57BL / Microscopy, Confocal / Nickel / RNA, Small Interfering (Link to Publication Site) ● Publication site (DOI): 10.1371/journal.pone.0019017 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21544193 ● Search Scopus @ Elsevier (PMID): 21544193 ● Search Scopus @ Elsevier (DOI): 10.1371/journal.pone.0019017 (DOI: 10.1371/journal.pone.0019017, PubMed: 21544193)
119.	Hideki Suito, Yoritoki Tomotake, Megumi Watanabe, Daisuke Nagao, Yuichi Ishida and Tetsuo Ichikawa : Survival of immediate implant restoration: A retrospective study through 9-year-observation, Journal of Prosthodontic Research, Vol.55, No.3, 141-145, 2011. (Summary) The purpose of this retrospective study was to assess the implant survival rate and the risk factors associated with implant failure in patients who had undergone immediate implant restoration. We performed a retrospective review and an outcome assessment of all patients who received immediate implant restoration between 2000 and 2010 in our department at Tokushima University Hospital. The patients were divided into groups on the basis of the predictor variables: age, gender, implant location, and number of implants per jaw. The cumulative implant survival rate in the paired groups was determined by using Kaplan-Meier analysis and the log-rank test. Cox proportional hazards model was subsequently used to identify exposures associated with implant failure. Using the Kaplan-Meier method, the survival rates at 1, 3, and 9 years were calculated to be 98.8%, 98.0%, and 94.7%, respectively. No statistically significant association was observed between the implant survival rates and the predictor variables: gender, age, location, and number of implants. Immediate implant restoration is a reliable prosthetic procedure with an acceptable survival rate compared to the conventional implant procedure. (Keyword) Adult / Aged / Dental Implants / Female / Humans / Kaplan-Meier Estimate / Male / Middle Aged / Proportional Hazards Models / Prosthesis Failure / Retrospective Studies / Time Factors (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2010.10.004 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21300587 ● Search Scopus @ Elsevier (PMID): 21300587 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpor.2010.10.004 (DOI: 10.1016/j.jpor.2010.10.004, PubMed: 21300587)
120.	Kenji Oka, 井上三四郎, 河野孝則 and Tetsuo Ichikawa : 二酸化チタン塗布エナメル質への青紫色半導体レーザー照射の影響，漂白効果について, Annals of Japan Prosthodontic Society, Vol.3, No.1, 26-31, 2011. (Keyword) Blue-Violet-Diode-Laser / titanium dioxide (TiO 2) / bleaching / tooth color / roughness (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.3.26 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205300024832 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.3.26 (DOI: 10.2186/ajps.3.26, CiNii: 1390001205300024832)
121.	Yuichi Ishida, Teruaki Ito, Hidenobu Nishinaka, Yutaka Sato, Yoritoki Tomotake, Tetsuo Ichikawa and Kazuo Arai : Devalopment and Evaluation of a Computer-assisted Navigation System Equipped with a Motion Sensor in Implant Dentistry, Journal of Japanese Society of Oral Implantology, Vol.23, No.4, 715-722, 2010. (Summary) 本研究では，3次元的な角度変化を計測できる姿勢検出センサを用いて開発を行った簡易的なインプラント埋入ナビゲーションシステムを開発した．本稿では，本システムの概要について紹介する．また，インプラント埋入の経験のない歯科医師を対象として，外科用ガイドプレートと本ナビゲーションシステムを用いてインプラント窩の形成を行う実験の結果について報告し，本システムの有用性と将来性について述べる． (Keyword) computer-assisted / navigation sysytem / implant / motion control sensor (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680481775744 (CiNii: 1390282680481775744)
122.	Jian-Rong CHENJ, Kenji Oka, Takanori KAWANO, Takaharu Goto and Tetsuo Ichikawa : Carbon dioxide laser application enhances the effect of silane primer on the shear bone strength between porcelain and composite resin, Dental Materials Journal, Vol.29, No.6, 731-737, 2010. (Summary) The purpose of this study was to evaluate the effect of carbon dioxide laser irradiation on the performance of silane coupling agent as an adhesion promoter. The carbon dioxide laser used in this study was Opelaser 03S II, which irradiated the silane coupling agent applied on the adhesive surface of porcelain. Before and after thermal cycling, shear bond strength was measured using a universal testing machine. Without primer treatment, most of the specimens failed adhesively before reaching the end of the thermal cycling period. For the specimens irradiated with carbon dioxide laser after primer treatment, their shear bond strengths before and after thermal cycling were higher than those treated with primer only -with a significantly pronounced difference between these two groups especially after thermal cycling. Therefore, a combined surface treatment which involved silane application followed by laser treatment was feasible and efficacious for chairside porcelain repair. (Keyword) Adhesiveness / Composite Resins / Dental Bonding / Dental Etching / Dental Materials / Dental Porcelain / Dental Stress Analysis / Feasibility Studies / Humans / Lasers, Gas / Materials Testing / Resin Cements / Shear Strength / Silanes / Spectrum Analysis, Raman / Stress, Mechanical / surface properties / temperature (Link to Publication Site) ● Publication site (DOI): 10.4012/dmj.2009-106 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21099155 ● Search Scopus @ Elsevier (PMID): 21099155 ● Search Scopus @ Elsevier (DOI): 10.4012/dmj.2009-106 (DOI: 10.4012/dmj.2009-106, PubMed: 21099155)
123.	Kenji Oka, 井上三四郎, 河野孝則 and Tetsuo Ichikawa : CO2レーザー照射が象牙質の耐酸性向上に与えるあたえる影響 -フッ化物との併用について-, Annals of Japan Prosthodontic Society, Vol.2, No.4, 226-232, 2010. (Keyword) CO 2 laser / dentin / acid-resistance / fluoride / absorption spectrophotometry (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.2.226 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570291225041307008 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.2.226 (DOI: 10.2186/ajps.2.226, CiNii: 1570291225041307008)
124.	J Li, Katsuhiko Hirota, Hiromichi Yumoto, Takashi Matsuo, Yoichiro Miyake and Tetsuo Ichikawa : Enhanced germicidal effects of pulsed UV-LED irradiation on biofilms., Journal of Applied Microbiology, Vol.109, No.6, 2183-2190, 2010. (Summary) This study can assist in developing a low-frequency pulsed UVA-LED system to be applied to pathogenic biofilms for disinfection. (Keyword) Biofilms / Candida albicans / Colony Count, Microbial / Disinfection / Escherichia coli / Free Radical Scavengers / Hydroxyl Radical / Mannitol / Microbial Viability / Ultraviolet Rays (Link to Publication Site) ● Publication site (DOI): 10.1111/j.1365-2672.2010.04850.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20854456 ● Summary page in Scopus @ Elsevier: 2-s2.0-78449262889 (DOI: 10.1111/j.1365-2672.2010.04850.x, PubMed: 20854456, Elsevier: Scopus)
125.	Jing Li, Yoshihito Naitou, Jian-Rong Chen, Takaharu Goto, Yuichi Ishida, Takanori Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : New glass polyalkenoate temporary cement for cement-retained implant restoration: Evaluation of elevation and retentive strength, Dental Materials Journal, Vol.29, No.5, 589-595, 2010. (Summary) The purpose of this study was to evaluate four luting agents for cement-retained implant restorations in two aspects: post-cementation elevation of the superstructure and the retentive strength before and after thermocycling and mechanical cycling. The four evaluated luting agents were: new glass polyalkenoate hard-type (GH) and soft-type (GS) cements, polycarboxylate hard-type (HH) and soft-type (HS) cements. Elevation and retentive strength were measured using a CCD laser displacement sensor and a universal testing machine respectively. Elevation increased in this order: GH, GS, HH, and HS. Thermal and mechanical stresses significantly decreased retentive strength, and the mean values exhibited by GH were significantly higher than the other luting agents. The novel glass polyalkenoate cements (hard- and soft-type) experimentally prepared in the present study augured well as luting agents by virtue of their reduced film thickness and their excellent post-cementation retention and elevation. (Keyword) Aluminum / Aluminum Silicates / Cementation / Dental Abutments / Dental Bonding / Dental Implants / Dental Prosthesis Retention / Dental Prosthesis, Implant-Supported / Dental Stress Analysis / Denture, Partial, Fixed / Fluorine / Glass Ionomer Cements / Gold Alloys / Humans / Lasers / Materials Testing / Palladium / Polycarboxylate Cement / Silver / Stress, Mechanical / Surface Properties / Temperature (Link to Publication Site) ● Publication site (DOI): 10.4012/dmj.2009-102 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20877129 ● Search Scopus @ Elsevier (PMID): 20877129 ● Search Scopus @ Elsevier (DOI): 10.4012/dmj.2009-102 (DOI: 10.4012/dmj.2009-102, PubMed: 20877129)
126.	皆木省吾, 築山能大, 有馬太郎, Tetsuo Ichikawa, 窪木拓男, 兒玉直紀, 佐久間重光, 新谷明喜, 高津匡樹, 竹内哲男, 津賀一弘, 坪井明人, 中島啓一朗, Masanori Nakano, 成田紀之, 波多野泰夫, 藤澤政紀, 船登雅彦, 鱒見進一 and Yoshizo Matsuka : スプリント療法ガイドラインの確立, Journal of the Japanese Association for Dental Science, Vol.29, No.29, 62-66, 2010. (Keyword) 外来治療 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1571135651364770560 (CiNii: 1571135651364770560)
127.	Toshiya Kashiwabara, Takaharu Goto, Yutaka Sato, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : A new method to prevent the corrosion of dental materials, during disinfection using functional water: Sacrificial protection, Journal of Prosthodontic Research, Vol.54, No.3, 147-149, 2010. (Summary) This paper demonstrates a simple method using sacrificial protection for preventing the corrosion of dental metals. Dental metals are directly connected or/and wound with a pure commercial aluminum/zinc wire/plate with high ionization tendency, before their immersion into oxidizing functional water. Dental materials such as Co-Cr alloy wires, stainless steel, and Au-Ag-Pd alloys did not corrode when this method was used. Thus, this method is very simple and effective for preventing corrosion of dental metals during disinfection using functional water. (Keyword) Corrosion / Dental Alloys / Disinfection / Stainless Steel / Water (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jpor.2010.01.004 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20189474 ● Search Scopus @ Elsevier (PMID): 20189474 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jpor.2010.01.004 (DOI: 10.1016/j.jpor.2010.01.004, PubMed: 20189474)
128.	Yoritoki Tomotake, Yuichi Ishida, 後藤崇晴, Kan Nagao and Tetsuo Ichikawa : 磁石固定式上部構造におけるインプラント支持歯槽骨の光弾性応力解析, The Journal of the Japanese Society of Magnetic Applications in Dentistry, Vol.19, No.1, 39-46, 2010.
129.	兒玉直紀, 築山能大, 有馬太郎, Tetsuo Ichikawa, 窪木拓男, 佐久間重光, 新谷明喜, 高津匡樹, 津賀一弘, 坪井明人, Masanori Nakano, 成田紀之, 波多野泰夫, 藤澤政紀, 船登雅彦, 鱒見進一, Yoshizo Matsuka and 皆木省吾 : 顎関節症のスプリント治療に関する実態調査大学病院顎関節症外来および一般開業歯科医院における診療時間の比較, Journal of the Japanese Society for the Temporomandibular Joint, Vol.21, No.3, 222-227, 2009. (Keyword) *外来治療 (Link to Publication Site) ● Publication site (DOI): 10.11246/gakukansetsu.21.222 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204419736064 ● Search Scopus @ Elsevier (DOI): 10.11246/gakukansetsu.21.222 (DOI: 10.11246/gakukansetsu.21.222, CiNii: 1390001204419736064)
130.	Yuka Yoshijima, Keiji Murakami, Shizuo Kayama, Dali Liu, Katsuhiko Hirota, Tetsuo Ichikawa and Yoichiro Miyake : Effect of substrate surface hydrophobicity on the adherence of yeast and hyphal Candida, Mycoses, Vol.53, No.3, 221-226, 2009. (Summary) A biofilm composed of various microorganisms including Candida is found on denture surfaces and is likely to be involved in the etiology of denture-induced stomatitis. The purpose of this study was to examine the role of hydrophobic interactions in candidal adherence to acrylic surfaces, particularly that of the hyphal form of Candida albicans. Candida clinical isolates were used. Acrylic plates coated with carrageenan and hydrocolloid (Hitachi chemical, Tokyo, Japan) were used as a hydrophilic substratum. A microbial suspension was placed on each acrylic plate and incubated. All plates were washed in phosphate-buffered saline containing CaCl(2) and MgCl(2) [PBS (+)] and cells still adhering to the acrylic surface were collected by 0.25% trypsin treatment. Cell-surface hydrophobicity was estimated using a modification of the technique used to measure adherence to hydrocarbons. When the acrylic plates were coated with hydrophilic materials, the adherence of hydrophobic clinical isolates of Candida and the hydrophobic hyphal C. albicans decreased, whereas the adherence of non-hydrophobic Candida was not affected or increased. We suggest that hydrophilic coating of denture surfaces could be a potent method for reduction of the adherence of relatively hydrophobic fungal cells, particularly hyphal C. albicans, which causes denture stomatitis and related infections. (Keyword) Candida albicans / Candidiasis / Carrageenan / Cell Adhesion / Colloids / Hydrophobic and Hydrophilic Interactions / Hyphae / Yeasts (Link to Publication Site) ● Publication site (DOI): 10.1111/j.1439-0507.2009.01694.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 19671080 ● Search Scopus @ Elsevier (PMID): 19671080 ● Search Scopus @ Elsevier (DOI): 10.1111/j.1439-0507.2009.01694.x (DOI: 10.1111/j.1439-0507.2009.01694.x, PubMed: 19671080)
131.	Razia Sultana, Kenichi Hamada, Tetsuo Ichikawa and Kenzo Asaoka : Effects of heat treatment on the bioactivity of surface-modified titanium in calcium solution, Bio-Medical Materials and Engineering, Vol.19, No.2-3, 193-204, 2009. (Summary) The purpose of this study was to determine the effects of heat treatment on the bioactivity of hydrothermal-modified titanium in CaO solution for improved bioactivity by immersion in simulated body fluid (SBF). The hydrothermal treatment of titanium in CaO solution was performed at 121 degrees C at 0.2 MPa for 1 h in an autoclave followed by 1 h heat treatments at 200, 400, 600 and 800 degrees C simultaneously. The bioactivity of titanium was evaluated by hydroxyapatite precipitation during immersion in SBF. Surface microstructure changes after the heat treatments and immersion in SBF were determined by X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Heat treatments at high temperatures (600 and 800 degrees C) promoted the synthesis of anatase, increased the thickness of the titanium oxide layer on the modified titanium surface and promoted the synthesis of calcium titanate, which possibly promoted the precipitation of apatite in SBF. The extent of precipitations increased with the time of immersion in SBF and the temperature of the heat treatment. Island-like deposits of needle-like crystals were observed only on the surface of the 600 and 800 degrees C heat-treated specimens after two or four week immersions in SBF. The results suggested that treatments of the surface of hydrothermal-treated titanium specimens at high temperatures (600 and 800 degrees C) could be effective for the surface modification of titanium as an implant material offering better osseointegration. (Keyword) Absorption / Biocompatible Materials / Body Fluids / Calcium / Crystallization / Hot Temperature / Materials Testing / Particle Size / Porosity / Solutions / Surface Properties / Titanium (Link to Publication Site) ● Publication site (DOI): 10.3233/BME-2008-0580 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 19581714 ● Search Scopus @ Elsevier (PMID): 19581714 ● Search Scopus @ Elsevier (DOI): 10.3233/BME-2008-0580 (DOI: 10.3233/BME-2008-0580, PubMed: 19581714)
132.	Yuri Yoshida, Yasuhiko Morita, Eiichi Honda, Yoritoki Tomotake and Tetsuo Ichikawa : Evaluation of Measurement Accuracy in Imaging Using a Cone-beam CT, Journal of Japanese Society of Oral Implantology, Vol.22, No.1, 3-14, 2009. (Keyword) cone-beam CT / the number and sites of implants placed / geometric / accuracy (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205505214976 (CiNii: 1390001205505214976)
133.	Tetsuo Ichikawa, Osamu Ishida, Megumi Watanabe, Yoritoki Tomotake and Hua Wei : A new retrieval system for cement-retained implant superstructures., Journal of Prosthodontics, Vol.17, No.6, 487-489, 2008. (Summary) This article discusses two methods for improving the retrievability of cement-retained implant superstructures. One method involves incorporating a removal screw in the superstructure and the second method uses a small dimple on the abutment, accessed through a vent in the superstructure. (Keyword) Crowns / Dental Abutments / Dental Cements / Dental Debonding / Dental Implants / Dental Prosthesis Design / Dental Prosthesis Retention / Dental Prosthesis, Implant-Supported / Humans / surface properties (Link to Publication Site) ● Publication site (DOI): 10.1111/j.1532-849X.2008.00329.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 18544129 ● Search Scopus @ Elsevier (PMID): 18544129 ● Search Scopus @ Elsevier (DOI): 10.1111/j.1532-849X.2008.00329.x (DOI: 10.1111/j.1532-849X.2008.00329.x, PubMed: 18544129)
134.	Wei Hau, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : Implant prostheses and adjacent tooth migration: preliminary retrospective survey using 3-dimensional occlusal analysis., The International Journal of Prosthodontics, Vol.21, No.4, 302-304, 2008. (Summary) Occlusal force analysis was retrospectively evaluated to clarify the proximal contact loss after fixed implant prosthesis placement. Twenty-eight patients (55 prostheses) with fixed implant prostheses in the posterior region were divided into 2 groups: proximal contact loss and unchanged groups. The occlusal force and its distribution were 3-dimensionally measured using the Dental Prescale system. A high proportion of lingual and anterior component forces and high occlusal force distribution in the intercanine region were observed in the contact loss group. The high occlusal force of the adjacent tooth may enhance the mesial migration. (Keyword) Bite Force / Dental Prosthesis, Implant-Supported / Dental Stress Analysis / Humans / Malocclusion / Mesial Movement of Teeth / Retrospective Studies (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 18717086 ● Search Scopus @ Elsevier (PMID): 18717086 (PubMed: 18717086)
135.	Yuri Yoshida, Yasuhiko Morita, Eiichi Honda, Yoritoki Tomotake and Tetsuo Ichikawa : 小照射野歯科用CT装置での患者被曝線量の検討．被曝測定用X線フィルムを用いた解析．, Journal of Japanese Society of Oral Implantology, Vol.21, No.3, 439-446, 2008.
136.	Yutaka Sato, Eiichi Bando and Tetsuo Ichikawa : Methods for Computer-Aided Diagnosis of Mastication, 日本歯科産業学会雑誌, Vol.21, No.2, 58-67, 2007. (Summary) Our research group is developing a system for computer-aided diagnosis(CAD) of mastication, that is based on the hypothesis of the Craniomandibular Control System. In this article, we described methods how to analyze the movement of condyle in temporo-mandibular joint with CAD system, and how to use dynamic data for diagnosis. Result of our research suggested that the method visualizing and measuring the distance between points on the fossa and those on the condyle is useful to see dynamic charactaristics of the movement of condyle. Using these methods we can see the effects of the altered anterior guidance on working side condylar movements. To complete our CAD system, we have two technical challenge, the one is automatic segmentation of osseous components from data digitized copmputed tomography, and the other is innovation of reference face bow unit that sets coordinate system of jaw tracking device and that of morphorogical data together. (Keyword) computer-aided diagnosis / jaw movement / Temporomandibular joint / Mastication
137.	Toshiya Kashiwabara, Yuka Yoshijima, Seiko Hongama, Kan Nagao, Katsuhiko Hirota and Tetsuo Ichikawa : Denture plaque microflora in geriatric inpatients and maxillary defect patients, Prosthodontic Research & Practice, Vol.6, No.3, 153-158, 2007. (Summary) Purpose: The purpose of this study was to investigate denture plaque microflora of geriatric inpatients and maxillary defect patients from the standpoint of infection control in the elderly.Methods: Denture plaque was collected from 80 elderly subjects who were categorized into 3 groups: group A, 21 healthy complete denture wearers; group B, 49 complete denture wearers residing at a geriatric hospital; and group C, 10 complete denture wearers with maxillary defects. The microflora was investigated by counting the total number of microorganisms, including streptococci, staphylococci, and Candida spp.Results: The colony-forming unit (CFUs) count and incidence, particularly those of Candida spp., were significantly higher in group B (P<0.01). The CFUs of staphylococci were significantly higher in group C (P<0.01), and methicillin-resistant Staphylococcus aureus (MRSA) was observed in all Staphylococcus-positive patients. The CFUs of Candida spp. were significantly correlated to those of staphylococci (P<0.01).Conclusion: A high CFU count of Candida spp. and staphylococci (including MRSA) are characteristic of the microflora in geriatric inpatients and maxillary defect patients, respectively. This study supports the hypothesis that dentures might serve as potential reservoirs of organisms causing systemic infections. (Keyword) denture plaque / microflora / maxillary defects / Candida / MRSA (Link to Publication Site) ● Publication site (DOI): 10.2186/prp.6.153 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680171157888 ● Search Scopus @ Elsevier (DOI): 10.2186/prp.6.153 (DOI: 10.2186/prp.6.153, CiNii: 1390282680171157888)
138.	Kan Nagao, Y. YANO, Tetsuo Ichikawa, Seiko Hongama, H. ICHIBA and T. MANYOSHI : Improvement of Oral Condition of Elderly using Oral Rinse with Benzethonium Chloride, 日本補綴歯科学会雑誌. 特別号, 日本補綴歯科学会学術大会抄録集 = Proceedings of the ... conference, the Japan Prosthodontic Society, Vol.51, No.116, 158, 2007. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1572261550564513536 (CiNii: 1572261550564513536)
139.	Yuri Yoshida, Eiichi Honda, Yoritoki Tomotake, Daisuke Nagao and Tetsuo Ichikawa : Evaluation of Patient Dose in Imaging Using a Cone-beam CT for Dental Use., Journal of Japanese Society of Oral Implantology, Vol.20, No.2, 280-286, 2007. (Keyword) cone-beam CT / 3DX multi-image micro CT / flat panel detector / thermoluminescence dosimeter (TLD) (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680485558656 (CiNii: 1390282680485558656)
140.	Yuri Yoshida, Yoritoki Tomotake, Megumi Watanabe, Daisuke Nagao and Tetsuo Ichikawa : Evaluation of Factors Affecting the Value of a New Wireless Resonance, Journal of Japanese Society of Oral Implantology, Vol.19, No.4, 446-452, 2006.
141.	Chen Jianrong, Kan Nagao, Yoritoki Tomotake and Tetsuo Ichikawa : Influence of a Vent Hole on the Retentive Force of a Cement-retained Superstructure before/after Thermocycling, Prosthodontic Research & Practice, Vol.5, No.3, 157-160, 2006. (Summary) <B>Purpose:</B> The purpose of this study was to evaluate the influence of a vent hole on the retentive force of a cement-retained superstructure to an abutment.<BR><B>Methods:</B> The retentive force of superstructures with/without a vent hole, retained using one of two luting cements, was measured using a universal testing machine both before and after thermocycling<BR><B>Results:</B> The retentive force of the cement-retained superstructure with the vent hole was greater than that of the cement-retained superstructure without the vent hole. While the retentive force decreased significantly after thermocycling, the size of the vent hole had little influence on the retentive force.<BR><B>Conclusion:</B> It was concluded that placement of a vent hole in the superstructure is useful, with little adverse effect on the retentive force of the restoration. (Keyword) retentive force / cement-retained superstructure / vent hole / thermocycling (Link to Publication Site) ● Publication site (DOI): 10.2186/prp.5.157 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205195009152 ● Search Scopus @ Elsevier (DOI): 10.2186/prp.5.157 (DOI: 10.2186/prp.5.157, CiNii: 1390001205195009152)
142.	Chen Jain-rong, Kenji Oka, Hua Wei and Tetsuo Ichikawa : Effect of surface treatment with commercial primers on tensile bone strength of auto-polymerizing resin to magnetic stainless steel, International Chinese Journal of Dentistry, Vol.5, No.1, 7-11, 2005.
143.	Tetsuo Ichikawa, 佐藤博信, 安田登, 服部正巳, 尾関雅彦, Yoritoki Tomotake, 秀島雅之, 佐藤裕二, 窪木拓男, 和気裕之 and 大山喬史 : 日本補綴歯科学会でいまどうして症型分類なのか, Practice in Prosthodontics, Vol.37, No.6, 639-645, 2004. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1572261550747852672 (CiNii: 1572261550747852672)
144.	Hua Wei, Yoritoki Tomotake, Kan Nagao, Takafumi Ohguri, Daisuke Nagao and Tetsuo Ichikawa : In vitro Study of Stress Distribution on Additional Posterior Mandibular Implants, Prosthodontic Research & Practice, Vol.3, No.1, 84-91, 2004. (Summary) Purpose : This in vitro study investigated the influence of implant splinting on stress distribution in two experimental implant-bone models.Materials and Methods : Two experimental implant-bone models simulated the original Brånemark model with four implants between the mental foramina and one additional implant placed on each side posterior to the mental foramen. The stress distribution on each implant in the models was examined by applying a static load to the superstructure. Three types of superstructures were studied to determine the effect of additional implants in the posterior region : 1) a metal superstructure supported by all six implants (Full dental arch ; Metal FDA) ; 2) the same type of superstructure made of resin instead of metal (Resin FDA) ; and 3) the metal superstructure supported by four anterior implants, with the conical abutments removed from the two posterior implants (Short dental arch ; Metal SDA).Results : Regardless of the type of superstructure tested, high stress was observed around each loaded implant. The highest stress was concentrated on the distal implants of the FDA compared to the stress on the anterior implants.Conclusion : The elevated stress concentration around the implants found in the present in vitro study is considered to be one of the reasons for the high failure rate of additional posterior mandibular implants. (Keyword) stress distribution / splinting / posterior installation of implant / mandibular distortion (Link to Publication Site) ● Publication site (DOI): 10.2186/prp.3.84 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680171778304 ● Search Scopus @ Elsevier (DOI): 10.2186/prp.3.84 (DOI: 10.2186/prp.3.84, CiNii: 1390282680171778304)
145.	Satoru Eguchi, Kikuji Yamashita, Hiroyuki Morimoto, Tetsuo Ichikawa, Nobuyoshi Nakajo and Seiichiro Kitamura : Extracellular matrix formed by MC3T3-E1 osteoblast-like cells cultured on titanium 2. Collagen fiber formation, Connective Tissue, Vol.36, No.1, 9-15, 2004. (Summary) Many aspects of the structures formed between titanium and cells and the mechanism of the formation are still unknown. In order to clarify these issues, we analyzed the initial structures formed between titanium and MC3T3-E1 osteoblast-like cells cultured on titanium. The present results indicate that extracellular matrix containing collagen fibers formed at the surface of a calcined layer on the titanium. At first, a hemispherical body and a small secondary spherical structure formed at the surface, followed by more beads to form a string-of-beads structure. These string-of-beads collagen structures elongated and formed spirals. For the first time ever, we directly observed the structure of collagen fiber formed between cultured osteoblasts and titanium with microscopy. Here, we describe the formation mechanism of type I collagen fibers in extracellular bone matrix. Elucidation of the mechanism of collagen fiber formation will aid in the development of controlled tissue regeneration. (Keyword) MC3T3-E1 / extracellular matrix / collagen fiber / spherical body / string-of-beads structure (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1543950420090628096 ● Summary page in Scopus @ Elsevier: 2-s2.0-2442611895 (CiNii: 1543950420090628096, Elsevier: Scopus)
146.	Kikuji Yamashita, Satoru Eguchi, Hiroyuki Morimoto, Takeo Hanawa, Tetsuo Ichikawa, Nobuyoshi Nakajo and Seiichiro Kitamura : Extracellular matrix formed by MC3T3-E1 osteoblast-like cells cultured on titanium 1. Anchor structure, Connective Tissue, Vol.36, No.1, 1-8, 2004. (Summary) In order to clarify the structure of the extracellular matrix formed by osteoblasts in contact with titanium, we analyzed the structure formed by cultured clonal MC3T3-E1 osteoblasts on a calcified surface of commercial pure titanium, after exfoliating the cells from the surface of the titanium. Collagen fibers formed between neighboring cells and between cells and titanium, in the latter case with one tip of each collagen fiber bound to the cell and the other tip bound to the surface of the titanium embedded in the calcified layer. We called this structure an "anchor structure", because the collagen fibers embedded in the calcified layer anchor the cells to the titanium. This structure may be a reason for the useful biocompatibility between titanium and bone. (Keyword) MC3T3-E1 / extracellular matrix / titanium / type I collagen / anchor structure (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1543668945113917440 ● Summary page in Scopus @ Elsevier: 2-s2.0-2442601411 (CiNii: 1543668945113917440, Elsevier: Scopus)
147.	Yasumasa Akagawa, Iwao Hayakawa, Takashi Nokubi, Yoshihiro Terada, Tetsuo Ichikawa, Ryo Hayashi, Kazuhiro Tsuga, (名) Oda, Kazuhiro Shimoyama, Kazuhiro Hori, Kimie Okimoto and Naoki Kitaoka : より確かな機能回復を目指すための舌機能評価法の確立, Journal of the Japanese Association for Dental Science, Vol.23, No.23, 49-58, 2004. (Keyword) Tongue / Mastication / Swallowing / Function / Evaluation Method (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570009750181556480 (CiNii: 1570009750181556480)
148.	Masatoshi Ishikawa, Masami Ichimiya, Toshiya Kashiwabara, Kenji Oka and Tetsuo Ichikawa : レーザー溶接による磁性アタッチメントキーパーの取り付け法, The Journal of the Japan Prosthodontic Society, Vol.47, No.3, 574-582, 2003. (Summary) Purpose: Recently, laser welding has gained wide acceptance as a dental laboratory technique for bonding metals. We have previously reported a new technique for installing a magnetic keeper in the overdenture abutment coping using laser welding. In the present study, the influence of this technique on the attractive force and corrosion were evaluated.<BR>Methods: A commercially-available magnetic keeper and dental casting Au-Ag-Pd alloy were used. Specimens were prepared by one of the following procedures: original magnetic keeper only, conventional cast-on technique and laser welding technique. Attractive force between thedental magnetic assembly and magnetic keeper was measured using a self-made measuring device. The results were analyzed using the one-way ANOVA test. The external and inner surface of magnetic keepers and cross sections of specimens were observed using metal and stereoscopic microscopes before and after immersion of the specimens in 0.9% NaCl solution for 21 days.<BR>Results: There was no significant difference of attractive force between the conventional cast-on technique and laser welding technique. All of the specimens using the cast-on technique rusted in the corrosion test. Half of the specimens using the laser welding technique changed less, and no oxidized layer or corrosion was observed on the surface.<BR>Conclusions: Installation of magnetic keepers using laser welding is useful for increasing both attractive force and corrosion resistance. (Keyword) dental magnetic attachment / magnetic keeper / laser welding / attractive force / corrosion (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.47.574 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679389636352 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.47.574 (DOI: 10.2186/jjps.47.574, CiNii: 1390282679389636352)
149.	齋賀明彦, Tetsuo Ichikawa, Yoritoki Tomotake, Hideo Kanitani and Seiko Hongama : スクリュー締め付け回転角/トルク計測によるインプラント上部構造の適合性評価, The Journal of the Japan Prosthodontic Society, Vol.47, No.2, 353-360, 2003. (Summary) Purpose: Misfit of superstructure-supported osseointegrated implants causes adverse stress in the prosthesis, components, and surrounding bone. A passive fit of the implant-supported prosthesis is essential for successful long-term osseointegration. Various clinical methods for evaluating the fit of implant-supported prostheses have been suggested. However, the methods have little scientific evidence to determine the acceptable fit. The present study evaluated the misfit of implant-supported prostheses by measuring the rotational angle/tightening torque in screwing the prosthesis on master models.<BR>Materials and Methods: Twenty-four implant-supported prostheses (3 single standing, 20 fixed partial, 1 full bridge) of fourteen patients were evaluated using a custom-made rotational angle/ tightening torque measuring apparatus on the master models. The influence of the order of tightening and unit number on the value was also evaluated.<BR>Results: The mean of the rotational angle/tightening torque was 2.6 (SD: 0.6) degree/Ncm in all prostheses. The value was significantly higher than that in the abutment screw as a control. The order of tightening and unit number did not significantly affect the values.<BR>Conclusions: The results suggest that measurements of rotational angle/tightening torque be useful for evaluating the fit of implant-supported prostheses. Misfit of the prostheses was below the level of acceptable fit. (Keyword) implant / superstructure / misfit / rotational angle / tightening torque (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.47.353 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204412927616 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.47.353 (DOI: 10.2186/jjps.47.353, CiNii: 1390001204412927616)
150.	Akihiko Saika, Tetsuo Ichikawa, Yoritoki Tomotake, Hideo Kanitani and Seiko Hongama : スクリュー締め付け回転角/トルク計測によるインプラント上部構造の適合性評価, The Journal of the Japan Prosthodontic Society, Vol.47, No.2, 353-360, 2003.
151.	Masatoshi Ishikawa, Tetsuo Ichikawa, Kan Nagao, 真里瀧野 and Miho Fujinum : 上顎全部床義歯の後縁設定に関する一考察, Shikoku Dental Research, Vol.15, No.2, 237-242, 2003.
152.	Keiji Tanimoto, Mitsuyoshi Yoshida, Tatsuji Nishihara, Tetsuo Ichikawa, Yukihiro Michiwaki, Kanchu Tei, Hiroki Nikawa, Takahiro Ono, Takashi Nokubi and Yasumasa Akagawa : 歯科医療における誤嚥の診断·予防およびその対策, Dentistry in Japan, Vol.22, 43-50, 2003.
153.	Kan Nagao, Naoki Kitaoka, Fumiaki Kawano, Junji Komoda and Tetsuo Ichikawa : Influence of Changes in Occlusal Vertical Dimension on Tongue Pressure to Palate during Swallowing, Prosthodontic Research & Practice, Vol.1, No.1, 16-23, 2002. (Summary) Purpose : The purpose of the present study was to examine the relationship of tongue pressure and changes in occlusal vertical dimension to swallowing.Materials and Methods : The volunteer subjects were four young male dentulous adults and eight elderly complete denture wearers. The tongue pressure to the palate was simultaneously recorded with electromyography (EMG) measurements of the suprahyoid muscles as the occlusal vertical dimension changed. The subjects were instructed to perform two actions : swallowing without any liquid or food (dry swallowing) and swallowing of 2 ml water (wet swallowing).Results : During dry swallowing, the maximum pressure decreased significantly as the vertical dimension increased in the young subjects. In the elderly, the maximum tongue pressure decreased monotonically as the vertical occlusion increased. The same results were clearly found for wet swallowing. Overall data suggested that the tongue pressure of the elderly group was lower and the duration of tongue pressure in wet swallowing was longer than that of the younger group.Conclusion : An increase of the vertical dimension decreased the tongue pressure to the palate, whereas a decrease of the vertical dimension affected the tongue pressure less. Tongue pressure is an important factor for the evaluation of tongue function, especially swallowing. (Keyword) Swallowing / Tongue Pressure / Vertical Dimension / Complete Denture (Link to Publication Site) ● Publication site (DOI): 10.2186/prp.1.16 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205194547968 ● Search Scopus @ Elsevier (DOI): 10.2186/prp.1.16 (DOI: 10.2186/prp.1.16, CiNii: 1390001205194547968)
154.	Seiko Hongama, Masatoshi Ishikawa, Fumiaki Kawano and Tetsuo Ichikawa : Complete denture with a removable palatal lift prosthesis, --- A case report and clinical evaluation ---, Quintessence International, Vol.33, No.9, 675-678, 2002. (Summary) The palatal lift prosthesis is used to alleviate rhinopharyngeal closure dysfunction. It is generally problematical to use in edentulous patients, because the palatal lift prosthesis requires secure retention of the denture base and is difficult for the patient to retain while eating. This article describes the fabrication of a complete denture with a removable palatal lift prosthesis and a clinical evaluation of the denture's stability. A sprue pin and tube were used as a connecting attachment between the removable palatal lift prosthesis and the denture base. The force required for lifting the soft palate and the denture's stability were measured in the clinical evaluation. The prosthesis required an average retentive force of 0.26 N for each 1 mm of soft palate lift. The force required to dislodge the denture was measured with and without the palatal lift prosthesis in place. The force required to dislodge the conventional complete dentures of five healthy individuals was also measured as a reference. The denture was 24.4% less stable when the palatal lift prosthesis was in place and was generally easier to dislodge than were conventional dentures. This denture with a removable palatal lift prosthesis is useful for patients with dysfunction of the soft palate involving hypernasal speech who have difficulty in retaining the prosthesis while eating. (Keyword) cerebrovascular accident / complete denture / palatal lift prosthesis / paralytic dysarthria / retention / rhinopharyngeal closure (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12666892 ● Search Scopus @ Elsevier (PMID): 12666892 (PubMed: 12666892)
155.	Naoki Omura, Katsuhiko Hirota, Yoko Kanitani, Kan Nagao, Toshiya Kashiwabara and Tetsuo Ichikawa : デンチャープラークと咽頭の微生物叢との関連性, The Journal of the Japan Prosthodontic Society, Vol.46, No.4, 530-538, 2002. (Summary) Purpose: Prevention of an infection, especially aspiration pneumonia, is an important theme in the elderly. We are pointing out risk that is causing an infection such as the aspiration pneumonia, and a denture acts as a reservoir of microorganisms. The aim of this study was to examine the relationship between denture plaque and pharyngeal microflora in the elderly, and the drug susceptibility of isolated <I>Candida</I> spp.<BR>Methods: We collected samples of denture plaque and pharyngeal plaque from elderly patients in a geriatric hospital and Tokushima University Dental Hospital (TUDH). The microflora was investigated by the detection of oral streptococci, staphylococci, <I>Candida</I> spp., <I>Pseudomonas aeruginosa, Escherichia coli</I> and coliforms, and MRSA. Isolated <I>Candida</I> spp. were measured for drug susceptibility.<BR>Results: The microflora of denture plaque was very similar to pharyngeal microflora. A higher incidence of most microorganisms was observed in the patients in TUDH compared with patients in the geriatric hospital. Staphylococci were detected from the patients who harbored <I>Candida</I> spp. All strains of <I>Candida</I> spp. appeared to be susceptible to amphotericin B. Some strains of <I>C. glabrata, C</I>.tropicalis, and <I>C. krusei</I> appeared to be less susceptible to fluconazole. Fluconazole-resistant <I>C. albicans</I> was not isolated.<BR>Conclusions: Denture plaque strongly influences the pharyngeal microflora in the elderly. (Keyword) denture plaque / Candida spp. / aspiration pneumonia / pharynx / drug resistance (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.46.530 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204413540608 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.46.530 (DOI: 10.2186/jjps.46.530, CiNii: 1390001204413540608)
156.	Ken'ichi Yokoyama, Tetsuo Ichikawa, Hiroki Murakami, Youji Miyamoto and Kenzo Asaoka : Fracture mechanisms of retrieved titanium screw thread in dental implant, Biomaterials, Vol.23, No.12, 2456-2465, 2002. (Summary) Titanium and its alloy are increasingly attracting attention for use as biomaterials. However, delayed fracture of titanium dental implants has been reported, and factors affecting the acceleration of corrosion and fatigue have to be determined. The fractured surface of a retrieved titanium screw and metallurgical structures of a dental implant system were analyzed. The outer surface of the retrieved screw had a structure different from that of the as-received screw. It was confirmed that a shear crack initiated at the root of the thread and propagated into the inner section of the screw. Gas chromatography revealed that the retrieved screw had absorbed a higher amount of hydrogen than the as-received sample. The grain structure of a titanium screw, immersed in a solution known to induce hydrogen absorption, showed features similar to those of the retrieved screw. It was concluded that titanium in a biological environment absorbs hydrogen and this may be the reason for delayed fracture of a titanium implant. (Keyword) titanium / dental implant / delayed fracture / metallurgical structure / environmental corrosion / shear crack / hydrogen / RECONSTRUCTION / CORROSION / FAILURE / PLATES / alloy / light (Link to Publication Site) ● Publication site (DOI): 10.1016/S0142-9612(01)00380-5 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12033593 ● CiNii @ National Institute of Informatics (CRID): 1571417126701142016 ● Search Scopus @ Elsevier (PMID): 12033593 ● Search Scopus @ Elsevier (DOI): 10.1016/S0142-9612(01)00380-5 (DOI: 10.1016/S0142-9612(01)00380-5, PubMed: 12033593, CiNii: 1571417126701142016)
157.	Fumiaki Kawano, Takafumi Ohguri, Tetsuo Ichikawa, Iwate Mizuno and Akira Hasegawa : Shock Absorbability and Hardness of Commercially Available Denture Teeth, The International Journal of Prosthodontics, Vol.15, No.3, 243-247, 2002. (Summary) Composite resin teeth are more widely used than porcelain or acrylic resin teeth in the fabrication of removable dentures because of their high fracture toughness and high abrasion resistance. The purpose of this study was to evaluate the shock absorbability of commercially available artificial posterior teeth by the free drop-ball test with an accelerometer and to evaluate the Vickers hardness at the surface. The tested artificial teeth included seven composite resin teeth, one acrylic resin tooth, and one porcelain tooth. Specimens were tested 50 hours after immersion in distilled water at 37 degrees C. The impact value and Vickers hardness were measured. A one-way analysis of variance was used to analyzed the data (P = .05). The composite resin teeth showed an intermediate impact value between that of the acrylic resin tooth and the porcelain tooth. Among the artificial teeth investigated, the porcelain tooth showed the highest impact value. A significant difference in the impact value was observed between the porcelain tooth and the composite resin and acrylic resin teeth. However, no significant difference was observed among the composite resin teeth tested. A significant correlation was found between the impact values and the Vickers hardness of the artificial teeth. The present findings suggest that composite resin teeth and acrylic resin teeth have a higher shock absorbability than porcelain teeth. (Keyword) Absorption / acceleration / Acrylic Resins / analysis of variance / Composite Resins / Dental Materials / Dental Porcelain / Denture Design / Hardness / Humans / Immersion / Materials Testing / Molar / Statistics as Topic / Stress, Mechanical / surface properties / temperature / Time Factors / Tooth, Artificial / Water (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12066486 ● Summary page in Scopus @ Elsevier: 2-s2.0-0036560357 (PubMed: 12066486, Elsevier: Scopus)
158.	Yoritoki Tomotake, Tetsuo Ichikawa, Hideo Kanitani, Masahide Nakao and Naoki Kitaoka : Dynamics of bone marrow pressure with tapping of titanium and hydroxyapatite implants in rabbit, Clinical Oral Implants Research, Vol.13, No.2, 221-224, 2002. (Summary) The purpose of the present study was to evaluate the difference in stress transfer between titanium (Ti) and hydroxyapatite (HA) by the measurement of bone marrow pressure using a catheter pressure transducer. Ti and HA implants were inserted in the tibiae of rabbits. A hole of 1 mm in diameter was drilled in the bone and a fine catheter pressure transducer was placed in the bone marrow through a tube. The top of the abutment was vertically tapped with an impulse hammer, and the acceleration signal from the hammer and pressure signal from the catheter pressure transducer were examined. The time of contact (impulse duration) recorded in the impulse with Ti and HA was 166+/-17 micro sec and 164 +/- 17 micro sec, respectively. Maximum bone marrow pressure (BMP) with Ti and HA was 54.2 +/- 32.6 and 47.5 +/- 10.0 mmHg, respectively. Variation of the BMP with Ti was significantly larger than that with HA (P < 0.05). A negative correlation coefficient between impulse duration and BMP was found. The results of the present study suggest that the stress transfer is different between Ti and HA implants using dynamics of the bone marrow pressure. (Keyword) Acceleration / Animals / Biocompatible Materials / Biomechanics / Bone Marrow / Dental Abutments / Dental Implantation, Endosseous / Dental Implants / Durapatite / Male / Percussion / Pressure / Rabbits / Signal Processing, Computer-Assisted / Statistics as Topic / Stress, Mechanical / Tibia / Titanium / Transducers, Pressure (Link to Publication Site) ● Publication site (DOI): 10.1034/j.1600-0501.2002.130213.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 11952743 ● Search Scopus @ Elsevier (PMID): 11952743 ● Search Scopus @ Elsevier (DOI): 10.1034/j.1600-0501.2002.130213.x (DOI: 10.1034/j.1600-0501.2002.130213.x, PubMed: 11952743)
159.	Akihiko Saika, Tetsuo Ichikawa, Naoki Kitaoka, Yoritoki Tomotake and Nobuhiro Hamaguchi : Influence of Screw Tightening on Stress Distribution around Implant:An in vitro Experiment, Journal of Japanese Society of Oral Implantology, Vol.15, No.1, 1-9, 2002. (Summary) Screw tightening of the superstructure of osseointegrated implants often produces unsuitable strain on the prosthesis and surrounding bone The purpose of this study was to investigate the effects of screw tightening on surrounding bone in several conditions <br/> Three Steri-oss® implants were placed in an acrylic resin experimental model and a three-unit framework was fabricated on the implants The fit of the framework was judged excellent by laboratory microscopy Ten strain gauges were attached on the experimental model surface around the implants The strain was measured after every screw was tightened by a custom-designed torque controller Static and dynamic strain was recorded Each test was repeated five times under the same conditions <br/> The results were as follows:<br/> 1 The order of screw tightening affected stress distribution The distribution was unequal and asymmetrical to the implants <br/> 2 Staged tightening of the screws decreased the sum of all strains <br/> 3 Tightening torque does not affect stress distribution <br/> 4 Misfit of the abutment/superstructure joint increased the sum of all strains <br/> 5 Strain induced by tightening of the second or third implant was greater than that by tightening the first one (Keyword) implant / screw tightening / strain / experimental model / misfit (Link to Publication Site) ● Publication site (DOI): 10.11237/jsoi.15.1 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205510335744 ● Search Scopus @ Elsevier (DOI): 10.11237/jsoi.15.1 (DOI: 10.11237/jsoi.15.1, CiNii: 1390001205510335744)
160.	Yoritoki Tomotake, Hideo Kanitani, Masahide Nakao and Tetsuo Ichikawa : インパルス衝撃応答と骨髄圧によるオッセオインテグレーションの評価, The Journal of the Japan Prosthodontic Society, Vol.46, No.1, 110-119, 2002. (Summary) Purpose: The purpose of the present study was to evaluate the difference for stress transfer between titanium (Ti) and hydroxyapatite (HA) implants by measuring bone marrow pressure using a catheter pressure transducer, and then to clarify the relationship between the histological and biomechanical properties.<BR>Methods: Ti and HA implants were inserted in the tibiae of rabbits. About 10 weeks following implantation, a hole, 1mm in diameter, was drilled in the bone distal to the implant, and a fine catheter pressure transducer was placed in the bone marrow through a tube. After the abutment was connected to the implant, the top of the abutment was vertically tapped with an impulse hammer, and the acceleration signal from the hammer, and the pressure signal from the catheter pressure transducer, were examined. In addition, histological examination was performed on each implant.<BR>Results: Maximum bone marrow pressure (BMP) with Ti and HA was 117.4±54.8mmHg and 90.3±30.6mmHg, respectively. A significant difference was observed (p<0.05). Moreover, variation of the BMP with Ti was significantly larger than that with HA (p<0.05). A negative correlation coefficient between the time of contact recorded in the impulse and BMP was found with Ti. As to histological examination of the bone structure around several implants, no significant difference was found between Ti and HA implants.<BR>Conclusion: The results show that the stress transfer is different between Ti and HA implants, using dynamics of bone marrow pressure. Little relation was found between biomechanical properties and histological views. The present study suggests that the evaluation of osseointegration requires consideration of biomechanical properties. (Keyword) titanium implant / hydroxyapatite implant / osseointegration / impulse response / bone marrow pressure (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.46.110 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204412418816 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.46.110 (DOI: 10.2186/jjps.46.110, CiNii: 1390001204412418816)
161.	Yoritoki Tomotake, Osamu Ishida, Hideo Kanitani and Tetsuo Ichikawa : Immediate implant-supported oral rehabilitation using a photocurable plastic skull model and laser welding: A technical Note of Screw Retained type: Part 1, The International Journal of Prosthodontics, Vol.15, No.3, 303-306, 2002. (Summary) This article describes a new procedure for immediate implant-supported oral rehabilitation using a photocurable resin skull model and a laser-welding apparatus. Preoperatively, the framework was fabricated on a photocurable resin skull model produced from a CT scan and individually designed guide template. The implants were immediately placed using the guide template; laser welding connected the components of framework. Despite the custom-made prosthesis, the total treatment from implant placement to superstructure placement can be completed within only 1 day. This procedure for immediate implant-supported oral rehabilitation using a photocurable resin skull model and a laser-welding apparatus may be useful for any implant system and patient. (Keyword) TITANIUM FRAMEWORKS / EDENTULOUS JAW / PLACEMENT (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12066496 ● Summary page in Scopus @ Elsevier: 2-s2.0-0036559364 (PubMed: 12066496, Elsevier: Scopus)
162.	Masaru Hada, Yoko Kanitani, Tetsuo Ichikawa and Syusai Sato : The Present Condition and Problemes about Dentistry Related Assessment Itemes in The Materials of The Committee for Certification of Need for Longterm Care, Japanese Journal of Gerodontology, Vol.16, No.2, 220-227, 2001. (Summary) 介護認定審査会における要介護認定では, 訪問調査員による認定調査表の「基本調査」と「特記事項」, かかりつけ医による「主治医意見書」を参考に, 要介護度が判定される．<BR>しかし, 基本調査と特記事項の全85項目中, 歯科関連調査項目は, 「嚥下」, 「食事摂取」と「口腔清潔」のわずか3項目に過ぎず, また主治医意見書においても, 「歯科」受診の有無, 「嚥下性肺炎」の発生の可能性, 「訪問歯科診療」や「訪問歯科衛生指導」の必要性の有無, 「嚥下」や「摂食」についての介護サービス上の留意事項などに限られている．<BR>そこで, 介護認定審査にかかる統計資料 (507件, 平均年齢80.4±7.5歳) について歯科関連項目の調査状況を検討し, 以下のような結論を得た．<BR>1. 基本調査について: 要介護高齢者のおおよそ40%強は, 嚥下, 食事摂取, 口腔清潔において日常生活上何らかの介助を必要としていた．<BR>2. 特記事項について: 口腔清潔に何らかの問題があった事例に対する特記事項の記載率は, 40%弱と嚥下や食事摂取 (70∼80%) に対してよりも低かった．<BR>3. 主治医意見書について: 訪問歯科診療や訪問歯科衛生指導に対する必要性の認識は極めて低く, 嚥下性肺炎や摂食・嚥下障害の可能性に対して歯科系介護サービスの必要性を認めた主治医はわずか3∼5%に過ぎなかった．<BR>このような認定調査表や主治医意見書における歯科関連項目の調査, 記載状況を改善するには, 訪問調査員や医療関係者に対する歯科的知識の啓蒙や広報活動, 口腔アセスメント表の提案や特記事項の記載方法の指導など多方面にわたる努力が必要とされよう． (Keyword) 介護保険制度 / 介護認定審査会 / 認定調査表 / 主治医意見書 / 歯科関連調査項目 (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg1987.16.220 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679307243520 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg1987.16.220 (DOI: 10.11259/jsg1987.16.220, CiNii: 1390282679307243520)
163.	Fumiaki Kawano, Takafumi Ohguri, Naoyuki Matsumoto and Tetsuo Ichikawa : Influence of thermal cycling in water on flexural strength of laboratory-processed composite resin, Journal of Oral Rehabilitation, Vol.28, No.8, 703-707, 2001. (Summary) Recently a new generation of laboratory-processed composite resins containing submicron glass fillers was introduced, with claims of high strength. The purpose of this study was to evaluate the effect of thermal cycling in water on the flexural strength and hardness of several laboratory composite systems. The flexural strength of the new laboratory processed composite resins (Artglass [AG], Targis [TR] and Estenia [ES]) was significantly higher than that of conventional resins (Dentacolor [DC] and Cesead II [CS]). Thermocycling caused a reduction of the flexural strength but not a reduction of the hardness for most of materials tested. It was concluded that thermocycling affected the properties of the laboratory-processed hybrid type composite resin, ES, AG and TR. However, the changes of these properties were smaller than those of microfine type composite resin DC. Thus, ES, AG and TR may maintain better properties during service compared with DC. (Keyword) analysis of variance / Composite Resins / Confidence Intervals / elasticity / Glass / Glass Ionomer Cements / Hardness / Humans / Materials Testing / Methacrylates / Pliability / Polyethylene Glycols / Polymethacrylic Acids / Polyurethanes / Resin Cements / Silanes / Silicate Cement / Statistics as Topic / Stress, Mechanical / thermodynamics / Water (Link to Publication Site) ● Publication site (DOI): 10.1046/j.1365-2842.2001.00724.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 11556949 ● Summary page in Scopus @ Elsevier: 2-s2.0-0035431449 (DOI: 10.1046/j.1365-2842.2001.00724.x, PubMed: 11556949, Elsevier: Scopus)
164.	Masaru Hada, Yoko Kanitani, Tetsuo Ichikawa, Masatoshi Ishikawa and Kan Nagao : A Study on the Contributing Factors that make Denture Usage Difficult for the Dependent Elderly, Japanese Journal of Gerodontology, Vol.16, No.1, 22-28, 2001. (Summary) It is well known that whether the dependent elderly can use dentures or not depends on the degree of both their physical and mental capacities. However, we have observed several cases where two eldely persons having with similar levels of activities of daily living (ADL), a similar degree of independence in daily living, and a similar degree of dementia, differed significantly in their ability to use dentures properly.<BR>From these cases, it can be hypothesized that the ability of the dependent elderly to use dentures properly depends not only on their actual oral condition and ADL, but also on various events in their lives such as the number of their admissions to the hospital since they started wearing dentures. In other words, the cumulative effect of various major life events influences the usage of dentures by the elderly.<BR>Therefore, we conducted a survey designed to investigate the contributing factors that divide those elderly who wear dentures properly from those who do not .<BR>The study participants were the edentulous individuals (71 in total; 16 males, 55 females. Average age: 85.0±5.9 years) who are residents in a geriatric hospital or in a facility of the health care servicesfor the elderly in Tokushima prefecture .<BR>A survey was conducted on the above participants regarding their use of complete dentures, their ADL, their degree of independence for daily living, their degree of dementia, etc.<BR>The results can be summarized as follows: <BR>1 . The frequency of complete denture usage declined as the participant's levels of ADL, independence and dementia worsened, but this decline did not have any relationship to the times of theiradmissions to the hospital/facility or the numbers of members in their family.<BR>2. It was suggested that, among the elderly who have a dementia and mild to low levels of ADL, their ability to wear/remove dentures and to clean the dentures by themselves relates significantly to the frequency of their denture usage . (Keyword) The dependent elderly / Frequency of denture usage / Activities of Daily Living (ADL) / Oral ADL / Dementia / 要介護高齢者 / 義歯使用率 / 口腔に関連するADL / 痴呆 (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg1987.16.22 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204332476928 ● Search Scopus @ Elsevier (DOI): 10.11259/jsg1987.16.22 (DOI: 10.11259/jsg1987.16.22, CiNii: 1390001204332476928)
165.	Yoko Terada, Katsuhiko Hirota, Toshiya Kashiwabara, Kan Nagao, Yoichiro Miyake and Tetsuo Ichikawa : Identification of Helicobacter Pylori in Denture Plaque of Hospitalized Aged Patients, Dentistry in Japan, Vol.37, 56-58, 2001. (Keyword) Helicobacter Pylori / Denture Plaque / PCR / Oral Microorganism
166.	Fumiaki Kawano, Naoyuki Matsumoto and Tetsuo Ichikawa : Statistical Observation of Anterior Artificial Teeth Selected for Complete Denture, Journal of Esthetic Dentistry, Vol.13, No.2, 241-250, 2001. (Keyword) 前歯人工歯選択 / 形態 / 色調 / 大きさ
167.	Hideo Kanitani, Yoritoki Tomotake, Wigianto Rudi, Naeko Kawamoto and Tetsuo Ichikawa : Bone changes around hydroxyapatite and titanium implants after abutment placement in rabbits, --- observations using histological and three-dimensional examinations ---, The Journal of Oral Implantology, Vol.26, No.4, 251-256, 2000. (Summary) We have previously developed a computer-aided system for examination of the three-dimensional bone structure around implants and observed the bone changes in the healing period after implant placement. This paper describes the bone changes around hydroxyapatite (HA) and titanium (Ti) implants after abutment placement using histological and three-dimensional examinations. Twenty-four HA and Ti implants were embedded in the tibias of adult male New Zealand white rabbits. After 8 weeks, the abutment had passed through periosteum and was placed under the skin. Rabbits were sacrificed 4 and 8 weeks following abutment placement. In conclusion, histological examination showed that, at 4 weeks after abutment placement, bone resorption around the implant neck was seen in both HA and Ti implants, and at 8 weeks, excessive bone formation was seen around the implant neck. Three-dimensional bone examination showed that abutment placement may affect bone formation and cause additional bone hypertrophy in the bone marrow area. (Keyword) Animals / Bone Resorption / Computer Graphics / Dental Abutments / Durapatite / Hyperostosis / Imaging, Three-Dimensional / Implants, Experimental / Male / Rabbits / Tibia / Time Factors / Titanium (Link to Publication Site) ● Publication site (DOI): 10.1563/1548-1336(2000)026<0250:BCAHAT>2.3.CO;2 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 11831230 ● Search Scopus @ Elsevier (PMID): 11831230 ● Search Scopus @ Elsevier (DOI): 10.1563/1548-1336(2000)026<0250:BCAHAT>2.3.CO;2 (DOI: 10.1563/1548-1336(2000)026<0250:BCAHAT>2.3.CO;2, PubMed: 11831230)
168.	Fumiaki Kawano, Takafumi Ohguri, Kenji Oka, Tetsuo Ichikawa, Naoyuki Matsumoto, Kenji Hiranuma, Iwane Mizuno and Akira Hasegawa : Shock Absorbability of High-Abrasion-Resistance-Posterior Resin Teeth, The Journal of the Japan Prosthodontic Society, Vol.44, No.5, 675-682, 2000. (Keyword) high-abrasion-resistance teeth / porcelain teeth / resin teeth / shock absorbability / free drop-ball test
169.	Akihiko Saika, Miyuki Noda, Tetsuo Ichikawa, Naeko Kawamoto, Hideo Kanitani and Yoritoki Tomotake : インプラント上部構造のPassive fit適合試験法の検討, Journal of Japanese Society of Oral Implantology, Vol.13, No.3, 522-529, 2000.
170.	Fumiaki Kawano, Takeshi Kamata, Kenji Oka, Takafumi Ohguri, Tetsuo Ichikawa and Naoyuki Matsumoto : Addition of the Photo-cured Composite Resin for Crown to Abrasion-resistant Plastic Posterior Denture Teeth, --- Effect of Surface Treatment on Bond Strength ---, The Journal of the Japan Prosthodontic Society, Vol.44, No.4, 66(544)-72(550), 2000.
171.	Archadian Nuryanti, Fumiaki Kawano, Takafumi Ohguri, Tetsuo Ichikawa and Naoyuki Matsumoto : Flexural strength of rebased denture polymers, Journal of Oral Rehabilitation, Vol.27, No.8, 690-696, 2000. (Summary) The properties of denture base and reline resins may be affected by daily changes between room temperature and mouth temperature. The purpose of the study was to evaluate the effect of thermocycling on the flexural strength of the relined denture base polymer with reline resin. Three denture base resins, three hard reline resins and their combinations were tested. Fourteen specimens, 65x10x2.5 mm, were fabricated for each material. Polymer combination specimens were made using 1.5 mm hard reline resin on 1.0 mm cured denture base resins. Half of the specimens were stored for 50+/-2 h in distilled water at 37 degrees C, while the other half were thermocycled for 20 000 cycles between 4 and 60 degrees C. Three point bending tests were conducted on a universal testing machine at a cross-head speed of 0.5 cm/s. The flexural strengths were measured and a statistical analysis was performed on the data using three-way ANOVA (P<0.05). The results showed that the flexural strength of relined denture base polymer was significantly higher than that of hard reline polymer. Thermocycling did not affect the flexural strength of the relined denture base polymers, whereas the denture base polymer and reline polymer alone showed a decrease in strength after thermocycling. (Keyword) Acrylic Resins / Analysis of Variance / Denture Bases / Hot Temperature / Materials Testing / Pliability / Polymers / Polymethyl Methacrylate / Statistics, Nonparametric (Link to Publication Site) ● Publication site (DOI): 10.1046/j.1365-2842.2000.00552.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 10931264 ● Summary page in Scopus @ Elsevier: 2-s2.0-0034241433 (DOI: 10.1046/j.1365-2842.2000.00552.x, PubMed: 10931264, Elsevier: Scopus)
172.	Naoki Kitaoka, Junji Komoda, Tetsuo Ichikawa, Masatoshi Ishikawa, Kan Nagao, Fumiaki Kawano and Masaru Hada : Observation of Tongue Pressure to Palate at Swallowing, --- Comparison between Young Dentitions and Elderly Complete Denture Wearers ---, The Journal of the Japan Prosthodontic Society, Vol.44, No.3, 379-385, 2000. (Keyword) tongue pressure / swallowing / elderly / denture
173.	Takafumi Ohguri, Fumiaki Kawano, Tetsuo Ichikawa and Naoyuki Matsumoto : Influence of Buccal Interocclusal Distance on the Pressure Distribution, --- In Vitro Study ---, The Journal of the Japan Prosthodontic Society, Vol.44, No.3, 394-403, 2000. (Keyword) complete denture / lingualized occlusion / buccal interocclusal distance / pressure distribution
174.	Tetsuo Ichikawa, Hanawa Takao, Ukai Hidemi and Murakami Koichi : Three-dimensional bone response to commercially pure titanium, hydroxyapatite, and calcium-ion-mixing titanium in rabbits, International Journal of Oral & Maxillofacial Implants, Vol.15, No.2, 231-238, 2000.
175.	Fumiaki Kawano, Hiroshi Shinohara, Kenji Oka, Takafumi Ohguri, Masaru Hada and Tetsuo Ichikawa : Bond Strength of Silicone Rubber Impression Materials to Self-curing Resin, Shikoku Dental Research, Vol.12, No.2, 239-244, 2000. (Keyword) シリコーンラバー印象材 / 常温重合レジン / 接着剤 / 剪断引張り強さ / 引張り接着強さ
176.	Tetsuo Ichikawa, Yoko Terada, Katsuhiko Hirota, Yoichiro Miyake and Kazuo Hosoi : Study on oral health care and general health of elderly (in Japanese), Dentistry in Japan, Vol.19, 75-80, 2000. (Keyword) 高齢者 / 口腔 / 咽頭細菌 / 唾液 / 舌
177.	Fumiaki Kawano, Takafumi Ohguri, Andrew Koran 3rd, Naoyuki Matsumoto and Tetsuo Ichikawa : Influence of lining design of three processed soft denture liners on cushioning effect, Journal of Oral Rehabilitation, Vol.26, No.12, 962-968, 1999.
178.	Yoko Morikawa, Tetsuo Ichikawa, Naoki Kitaoka, Fumiaki Kawano and Masaru Hada : Influence of Anterior Palatal Form on Speech, --- Part 2 Relationship to Tongue and Mandibular Movements ---, The Journal of the Japan Prosthodontic Society, Vol.43, No.5, 877-883, 1999. (Keyword) anterior palatal form / palatogram / jaw position / speech / denture
179.	Hideo Kanitani, Yoritoki Tomotake, Naeko Kawamoto, 野田美幸, 斎賀明彦 and Tetsuo Ichikawa : 高周波電気メスがインプラント周囲骨組織に及ぼす影響について, Journal of Japanese Society of Oral Implantology, Vol.12, No.3, 343-349, 1999.
180.	Takafumi Ohguri, Fumiaki Kawano, Tetsuo Ichikawa and Naoyuki Matsumoto : Influence of occlusal scheme on pressure distribution under complete denture, The International Journal of Prosthodontics, Vol.12, No.4, 353-358, 1999.
181.	Toshiya Kashiwabara, Katsuhiko Hirota, Tetsuo Ichikawa, Yoko Terada, Kan Nagao and Fumiaki Kawano : Efficacy of Electrolyzed Water as Denture Cleanser, --- Influence on in vitro Biofilm of Candida albicans ---, The Journal of the Japan Prosthodontic Society, Vol.43, No.3, 513-517, 1999. (Keyword) Electrolyzeo Water / Candida Albicans / biofilm / Denture Plaque / Denture Cleanser (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.43.513 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.43.513 (DOI: 10.2186/jjps.43.513)
182.	Rudi Wigianto, Tetsuo Ichikawa, Hideo Kanitani, Naeko Kawamoto, Naoyuki Matsumoto and Hiroshi Ishizuka : Three-dimensional bone structure around hydroxyapatite and titanium implants in rabbits, Clinical Oral Implants Research, Vol.10, No.3, 219-225, 1999. (Summary) Long-term support of dental implants requires adequate bone thickness in the area surrounding the implant. A three-dimensional examination, including calculations of percent bone-implant contact and percent bone volume, was conducted to clarify the bone structure around pure titanium (Ti) and dense hydroxyapatite (HA) implants. The implants were installed in the tibiae of rabbits, and the bone structure was examined after 2, 4, 6 and 8 weeks. The bone formation following implantation differed in the cortical bone and cancellous bone areas. In the cortical bone area, the percent bone-implant contact and percent bone volume were comparatively consistent for both Ti and HA implants during the observation period. In the cancellous bone area, both findings were influenced by the implantation period, and the chronological bone structure in the cancellous bone area also differed between Ti and HA implants. The percent bone-implant contact and percent bone volume in the Ti implant increased over 8 weeks, whereas the dense HA implant increased for the first 4 weeks and then decreased. The implant materials, Ti and HA, affected the bone remodeling in the cancellous bone area. (Keyword) Analysis of Variance / Animals / Bone Density / Bone Remodeling / Computer Graphics / Dental Implantation, Endosseous / Durapatite / Image Processing, Computer-Assisted / Implants, Experimental / Male / Osseointegration / Rabbits / Tibia / Titanium (Link to Publication Site) ● Publication site (DOI): 10.1034/j.1600-0501.1999.100305.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 10522182 ● Search Scopus @ Elsevier (PMID): 10522182 ● Search Scopus @ Elsevier (DOI): 10.1034/j.1600-0501.1999.100305.x (DOI: 10.1034/j.1600-0501.1999.100305.x, PubMed: 10522182)
183.	寺田容子, Katsuhiko Hirota, Kan Nagao, Toshiya Kashiwabara and Tetsuo Ichikawa : Denture Plaque Control for Prevention of Systemic Infection: Part 1. Identification of Helicobacter pylori in Denture Plaque., The Journal of the Japan Prosthodontic Society, Vol.43, No.1, 100-104, 1999. (Keyword) Helicobacter pylori / Denture Plaque / PCR (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.43.100 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679386639232 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.43.100 (DOI: 10.2186/jjps.43.100, CiNii: 1390282679386639232)
184.	Shin-ichi Kawaguchi, 下村学, Hidehiko Hosoki, 上村修三郎, 坂野啓一, Tetsuo Ichikawa, Hiroki Iga and Hideo Yoshida : パノラマX線画像の視覚評価に関する基礎的検討, Shikoku Dental Research, Vol.11, No.2, 253-262, 1999. (Keyword) パノラマ / 視覚評価
185.	川端修一, Fumiaki Kawano, Masaru Hada, Tetsuo Ichikawa and 松本直之 : 部分床義歯症例の統計的観察, Shikoku Dental Research, Vol.11, No.2, 217-223, 1999.
186.	Fumiaki Kawano and Tetsuo Ichikawa : Viscoelastic Properties of Silicone Elastomer for Maxillofacial Prosthesis, Journal of the Japanese Academy of Maxillofacial Prosthetics, Vol.21, No.2, 1(49)-7(55), 1998. (Keyword) silicone elastomer / dynamic viscoelastic property / accelerated aging
187.	野田美幸, Masatoshi Ishikawa, Tetsuo Ichikawa, Hideo Kanitani, Yoritoki Tomotake, Naeko Kawamoto, Kan Nagao, Fumiaki Kawano and Masaru Hada : Influence of Implant Connection on Mandibular Flexure in Jaw Movement, --- Three-dimensional Finite Element Analysis ---, The Journal of the Japan Prosthodontic Society, Vol.42, No.4, 580-585, 1998. (Keyword) mandibular flexure / finite element method / implant / connection
188.	Fumiaki Kawano, Takao Hanawa, Kenji Oka, Yoritoki Tomotake, Kenzo Asaoka, Tetsuo Ichikawa and Naoyuki Matsumoto : Estimation of residual stress in dental porcelain by Laser-Raman spectroscopy, Dental Materials Journal, Vol.17, No.1, 41-50, 1998. (Keyword) Dental porcelain / Residual stress / Laser-Raman spectroscopy
189.	Tetsuo Ichikawa, Katsuhiko Hirota, H Kanitani, Yoichiro Miyake and N Matsumoto : In vitro adherence of Streptococcus constellatus to dense hydroxyapatite and titanium, Journal of Oral Rehabilitation, Vol.25, No.2, 125-127, 1998. (Summary) Bacterial adherence to dense hydroxyapatite (HA) and titanium (Ti) rods was examined in vitro using Streptococcus constellatus ATCC27832. Streptoccus constellatus is associated with dental abscess and was isolated from the peri-implantitis. The dense HA was etched with 5% hydrofluoric acid for 0, 10, 20, 30, 40, and 50 s Adherence to the untreated dense HA was twice as high as the adherence to the Ti. The adherence to saliva-treated Ti was 13% higher than that to untreated Ti. The adherence was increased by acid-treatment of the dense HA, following a sigmoid curve from 20 to 50 s of treatment time. The dense HA has the capacity to receive more bacterial adherence than Ti and furthermore, the etched dense HA becomes more adherent. (Keyword) Abscess / Acid Etching, Dental / analysis of variance / Bacterial Adhesion / Dental Implants / Durapatite / Humans / Hydrofluoric Acid / periodontitis / Saliva / Streptococcal Infections / Streptococcus / surface properties / Time Factors / titanium / Tooth Diseases (Link to Publication Site) ● Publication site (DOI): 10.1046/j.1365-2842.1998.00216.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 9576596 ● Summary page in Scopus @ Elsevier: 2-s2.0-0031994809 (DOI: 10.1046/j.1365-2842.1998.00216.x, PubMed: 9576596, Elsevier: Scopus)
190.	森川葉子, Tetsuo Ichikawa and 松本直之 : 前方部口蓋形態が発音運動に及ぼす影響について, The Journal of the Japan Prosthodontic Society, Vol.41, No.2, 278-285, 1997.
191.	Rudi Wigianto, Tetsuo Ichikawa, Hideo Kanitani, Masanobu Horiuchi, Naoyuki Matsumoto and Hiroshi Ishizuka : Three-dimensional examination of bone structure around hydroxyapatite implant using digital image processing, Journal of Biomedical Materials Research, Vol.34, No.2, 177-182, 1997.
192.	Tetsuo Ichikawa, Katsuhiko Hirota, Hideo Kanitani, Rudi Wigianto, Naeko Kawamoto, Naoyuki Matsumoto and Yoichiro Miyake : Rapid bone resorption adjacent to hydroxyapatite-coated implants, The Journal of Oral Implantology, Vol.22, No.3,4, 232-235, 1997. (Summary) This paper describes rapid bone resorption in the peri-implantitis of HA implants based on both our clinical observations of and histological research on extracted dense hydroxyapatite (HA) implants. The surfaces of extracted HA implants were rough, although they were smooth at fixture placement. Plaque formed on the necks of the implants, whereas little plaque was seen on the bottoms. The plaque consisted of cocci and rods, including filamentous bacteria. Few spirochetes were observed. Although surrounding bone was formed rapidly around the HA implant, bone thickness gradually decreased compared with the titanium implant. These facts suggest that the rigid biointegration of HA with the thin surrounding bone--that is, the overstressing of the bone--causes rapid bone resorption rather than plaque accumulation on HA. (Keyword) Hydroxyapatite / Peri-implantitis / Bone Resorption / Overstressing (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 9524500 ● Search Scopus @ Elsevier (PMID): 9524500 (PubMed: 9524500)
193.	Tetsuo Ichikawa, Hideo Kanitani, Rudi Wigianto, Naeko Kawamoto, Masanobu Horiuchi and Naoyuki Matsumoto : Influence of bone quality in the stress distribution, --- An in vitro experiment ---, Clinical Oral Implants Research, Vol.8, No.1, 18-22, 1997. (Summary) Adequate bone quality and stress distribution to the bone are of decisive importance for implant success. The purpose of this in vitro study was to investigate the influence of bone quality on the stress distribution using 2 implant-bone mimicking models, simulating compact and cancellous bone quality. The resin model was made of an acrylic resin only simulating compact bone quality. The hybrid model was made of 2 kinds of materials, acrylic resin covered with a 1-mm layer of urethane to simulate cancellous bone quality. An implant was embedded in each model, and the abutment and suprastructures were connected to the implant. A strain gauge was placed perpendicular to the implant on the surface of the model and a small accelerometer was attached to the abutment. When an impact load was applied to the suprastructure, both strain and acceleration were measured. Both abutment acceleration and surface strain in the hybrid model decreased rapidly as time progressed when compared to the resin model. Abutment accelerations in the resin model were significantly lower than those in the hybrid model. In the hybrid model, the strain increased as the loading site was moved closer to the strain gauge. The influence of loading sites on strain in the resin model was greater than in the hybrid model. Therefore, the occlusal stress was distributed more widely in the hybrid model than in the resin model. This may indicate that occlusal stress in compact bone may have a tendency to concentrate in particular regions. (Keyword) Acrylic Resins / Alveolar Process / Analysis of Variance / Bite Force / Bone Density / Dental Stress Analysis / Elasticity / Humans / Models, Structural / Urethane (Link to Publication Site) ● Publication site (DOI): 10.1111/j.1600-0501.1997.tb00003.x (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 9586452 ● Search Scopus @ Elsevier (PMID): 9586452 ● Search Scopus @ Elsevier (DOI): 10.1111/j.1600-0501.1997.tb00003.x (DOI: 10.1111/j.1600-0501.1997.tb00003.x, PubMed: 9586452)
194.	Masanobu Horiuchi, Tetsuo Ichikawa, Miyuki Noda and Naoyuki Matsumoto : Use of inter-implant displacement to measure mandibular distortion during jaw movements in human subjects, Archives of Oral Biology, Vol.42, 185-188, 1997.
195.	Tetsuo Ichikawa, 森川葉子, 堀内政信 and 松本直之 : 超音波計測法を用いた舌形状の動的計測, The Journal of the Japan Prosthodontic Society, Vol.40, No.5, 917-921, 1996.
196.	Tetsuo Ichikawa, Masanobu Horiuchi, Rudi Wigianto and Naoyuki Matsumoto : In vitro study of mandibular implant-retained overdentures. The influence of stud attachment on load transfer to implant and soft tissue, The International Journal of Prosthodontics, Vol.9, No.4, 394-399, 1996.
197.	Toshiya Kashiwabara, Tetsuo Ichikawa, Naeko Kawamoto, Hideo Kanitani, 堀内政信, Katsuhiko Hirota, Yoichiro Miyake and 松本直之 : 老人病院入院患者の口腔状態とデンチャープラークの細菌構成について, The Journal of the Japan Prosthodontic Society, Vol.40, No.3, 448-453, 1996. (Keyword) Elderly Patient / Edentulous / Geriatric / Denture Plaque / MRSA
198.	Naeko Kawamoto, Tetsuo Ichikawa, Hideo Kanitani, Toshiya Kashiwabara, 堀内政信, Katsuhiko Hirota, Yoichiro Miyake and 松本直之 : 電解水の義歯洗浄効果, The Journal of the Japan Prosthodontic Society, Vol.40, No.3, 574-579, 1996. (Keyword) Acidic Electrolyzed Water / Neutral Electrolyzed Water / Denture Cleanser / Denture Plaque
199.	Tetsuo Ichikawa, Katsuhiko Hirota, Hideo Kanitani, Wigianto Rudi, Naeko Kawamoto, 堀内政信, Yoichiro Miyake and 松本直之 : アパタイトインプラントの細菌付着に関する研究, The Journal of the Japan Prosthodontic Society, Vol.40, No.1, 40-45, 1996. (Keyword) Hydroxyapatite / implantation / Titanium / Bacteria Adherence / Streptococcus Constellatus
200.	森川葉子, Tetsuo Ichikawa, 薦田淳司, 堀内政信, Masaru Hada and 松本直之 : 口蓋形態の分類と音声の音響学的特徴との関連, 日本補綴歯科学会誌, Vol.39, No.5, 948-953, 1995.
201.	堀坂寧介, Hideo Kanitani, Wigianto Rudi, 河野玲子, 堀内政信, Tetsuo Ichikawa, Hiroshi Ishizuka and 松本直之 : 骨粗鬆症がインプラント周囲の骨組織に及ぼす影響について, Journal of Japanese Society of Oral Implantology, Vol.8, No.2, 121-125, 1995.
202.	Tetsuo Ichikawa, Wigianto Rudi, Hideo Kanitani, 堀内政信 and 松本直之 : インプラントを支台としたオーバーデンチャーに関する基礎的研究, Journal of Japanese Society of Oral Implantology, Vol.8, No.2, 136-142, 1995.
203.	Hideo Kanitani, 堀坂寧介, ルディウィギアント, 堀内政信, Tetsuo Ichikawa, 宮本雅司, Kikuji Yamashita, 石塚寛, Hideo Yoshida and 松本直之 : GTR法を用いたApatite 2-Piece Implant 周囲骨組織の経時変化, 日本口腔インプラント学会雑誌, Vol.7, No.2, 249-256, 1995.
204.	Tetsuo Ichikawa, Junji Komoda, Masanobu Horiuchi and Naoyuki Matsumoto : Influence of alteration in the oral environment on speech production, Journal of Oral Rehabilitation, Vol.22, 295-299, 1995.
205.	堀内政信, Tetsuo Ichikawa, 堀坂寧介, Hideo Kanitani, Wigianto Rudi, 河野玲子 and 松本直之 : 骨結合型インプラントを利用した下顎運動時の下顎骨体の歪測定, The Journal of the Japan Prosthodontic Society, Vol.39, No.2, 285-289, 1995.
206.	Tetsuo Ichikawa, 堀内政信, 堀坂寧介, Hideo Kanitani, Wigianto Rudi, 宮本雅司, 松本直之 and Hideo Yoshida : 骨質がアパタイトインプラントの術後経過に及ぼす影響, Journal of Japanese Society of Oral Implantology, Vol.8, No.1, 25-31, 1995.
207.	Masanobu Horiuchi, Tetsuo Ichikawa, Hideo Kanitani, Rudi Wigianto, Naeko Kawamoto and Naoyuki Matsumoto : Pilot-hole preparation for proper implant positioning and the enhancement of bone formation, The Journal of Oral Implantology, Vol.21, No.4, 318-324, 1995. (Summary) We have demonstrated a new insertion technique, "pilot-hole preparation", for proper implant positioning. The purpose of this study was to investigate the histological and biomechanical efficacies of the technique. We analyzed the influence of implant position on the stress distribution to the bone by the two-dimensional finite element method (FEM). In addition, we studied the influence of the pre-operative pilot-hole preparation on the bone tissue in vivo using histological examination. (Keyword) Adult / Alveolar Process / Dental Implantation, Endosseous / Dental Implants / Dental Models / Dental Occlusion / Dental Stress Analysis / Evaluation Studies as Topic / Female / Humans / Male / Mandible / Middle Aged / Models, Anatomic / Numerical Analysis, Computer-Assisted / Osseointegration / Osteogenesis / Patient Care Planning / Stents (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 8699525 ● Search Scopus @ Elsevier (PMID): 8699525 (PubMed: 8699525)
208.	Masaru Hada, Yoshihiko Takatsu, Fumiaki Kawano, Tetsuo Ichikawa, Hiroyasu Ichiba, Morio Imai and Naoyuki Matsumoto : Studies on the Mobility of Complete dentures, --- Part 1. Investigation of a Method of Measurement and Analysis using MKG ---, The Journal of the Japan Prosthodontic Society, Vol.29, No.5, 43-1019-51-1027, 1985.
209.	Naoyuki Matsumoto, Tetsuo Ichikawa, Fumiaki Kawano, Kohji Iwawaki, Tagui Katoh and Ichiro Tsutsumi : Studies on Reproduction of Condylar Path by means of Articulators, --- Part 1. Semi-Adiustable Articulators ---, The Journal of the Japan Prosthodontic Society, Vol.29, No.3, 1-527-9-535, 1985.
210.	Naoyuki Matsumoto, Yoshio Tada, Shusai Sato, Tetsuo Ichikawa, Fumiaki Kawano and Masaru Hada : Studies on Mechanism of Speech, --- Part1. Normal Subjects ---, The Journal of the Japan Prosthodontic Society, Vol.28, No.4, 162-748-173-759, 1984.
211.	Masaru Hada, Yoshihiko Takatsu, Tetsuo Ichikawa, Fumiaki Kawano and Naoyuki Matsumoto : Problems on the Time character of the Mandibular Kinesiograph, The Journal of the Japan Prosthodontic Society, Vol.27, No.6, 1-1077-7-1083, 1983.
212.	Hiroshi Terada, Hideaki Nagamune, Norifumi Morikawa and Tetsuo Ichikawa : The cyanine dye triS-C4(5) as a cationic uncoupler of oxidative phosphorylation: Interaction with mitochondria detected by derivative spectrophotometry, Cell Structure and Function, Vol.8, No.2, 161-170, 1983. (Summary) 微分吸収スペクトル法を用いてtri-S-C4(5)のミトコンドリアへの結合と，脱共役作用及びミトコンドリア体積膨潤作用を経時的に比較した．その結果，無機リン酸イオン存在下で脱共役状態のミトコンドリアに対してよりも，無機リン酸イオン非存在下で共役状態のミトコンドリアへの結合量が大幅に多く，しかもその際にミトコンドリアは収縮しており，tri-S-C4(5)がミトコンドリア内に蓄積する事が脱共役作用の原因では無いことを分光学的に示した．

Academic Paper (Unrefereed Paper):

1.	Lipei Liu, Megumi Watanabe and Tetsuo Ichikawa : Robotics in Dentistry: A Narrative Review, Dentistry Journal, Vol.11, No.3, 62, 2023. (Summary) Robotics is progressing rapidly. The aim of this study was to provide a comprehensive overview of the basic and applied research status of robotics in dentistry and discusses its development and application prospects in several major professional fields of dentistry. A literature search was conducted on databases: MEDLINE, IEEE and Cochrane Library, using MeSH terms: ["robotics" and "dentistry"]. Forty-nine articles were eventually selected according to certain inclusion criteria. There were 12 studies on prosthodontics, reaching 24%; 11 studies were on dental implantology, accounting for 23%. Scholars from China published the most articles, followed by Japan and the United States. The number of articles published between 2011 and 2015 was the largest. With the advancement of science and technology, the applications of robots in dental medicine has promoted the development of intelligent, precise, and minimally invasive dental treatments. Currently, robots are used in basic and applied research in various specialized fields of dentistry. Automatic tooth-crown-preparation robots, tooth-arrangement robots, drilling robots, and orthodontic archwire-bending robots that meet clinical requirements have been developed. We believe that in the near future, robots will change the existing dental treatment model and guide new directions for further development. (Tokushima University Institutional Repository) ● Metadata: 118620 (Link to Publication Site) ● Publication site (DOI): 10.3390/dj11030062 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36975559 ● Search Scopus @ Elsevier (PMID): 36975559 ● Search Scopus @ Elsevier (DOI): 10.3390/dj11030062 (Tokushima University Institutional Repository: 118620, DOI: 10.3390/dj11030062, PubMed: 36975559)
2.	Eiichi Honda, Teruaki Ito, Yohsuke Kinouchi, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 一般照明および植物育成照明に応用できる新しいLED照明方法の開発, LED総合フォーラム2018 in 徳島論文集, 111-112, 2018.
3.	Yasuhiko Shirayama, Tetsuo Ichikawa, Masami Yoshioka, Shizuko Yanagisawa, Yuko Takeuchi, Takaharu Goto, 高橋美和, 寺西彩 and Mio Kitamura : social supoort for persons with cognitive dysfunction, The Japanese Journal of Rehabilitation Medicine, Vol.9, No.54, 710-716, 2017. (Link to Publication Site) ● Publication site (DOI): 10.2490/jjrmc.54.710 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205274377088 ● Search Scopus @ Elsevier (DOI): 10.2490/jjrmc.54.710 (DOI: 10.2490/jjrmc.54.710, CiNii: 1390001205274377088)
4.	Maki Hosoki, 田上直美, Megumi Watanabe, 山瀬勝, 飯田俊二, 舞田健夫, 大平千之, 大久保力廣, 秋葉陽介, 服部正巳, 峯篤史, 高永和, 鳥井克典, Yoshizo Matsuka, 志賀博 and Tetsuo Ichikawa : 歯科用金属による金属アレルギーの臨床病態と補綴学的対応に関する多施設調査, Journal of the Japanese Association for Dental Science, Vol.34, 44-48, 2015.
5.	Masami Yoshioka, Naoko Matsumoto, Yumi Hoshimo, Daisuke Hinode, Hiroki Iga, Masaaki Yokoyama, Tetsuo Ichikawa, Fumiaki Kawano and Takafumi Noma : キャリア形成支援教育プログラムの開発と教育効果の評価-「チーム医療体験学習」の実践的研究を通して-, Journal of University Education Research, Vol.6, 24-43, 2009. (Summary) We prepared career advancement program "Experience learning in medical team treatment" towards the second，third and fouth year students of dental school. This program consits of prior learningconcerned with 'Team treatment and Dental profession' and experience learning in medical team treatment at Tokushima University Hospital.The purpose of this program was to rouse career conciousness as a dentalprofession. This program provided students with career image which they want to be in the future. Besides，they were motivated to study more widely to approach their own image. In this paper，we evaluated theeffects of the program"The experience learning in medical team treatment" on career advancement ofdental school students. As a result，it is suggested that this program might be fruitful as career advancement on dental students.我々は歯学部学生のキャリア形成支援のための教育プログラム「チーム医療体験学習」を開発し，歯学部の2，3，4年次の学生を対象として実施した．本プログラムは，グループワークによる事前学習とチーム医療の現場体験を2つの柱とし，学生の歯科医療職としてのキャリア意識を強化することを目的とした．プログラム終了時のアンケートから，学生には歯科専門職としての将来の姿勢や目指す方向性が具体化すると同時に幅広い知識を身につけたいといった学習に対する動機付が強化されるなど明らかな教育成果が認められた．プログラム実施前後のアンケートの分析結果から，「チーム医療体験学習」が歯学部学生のキャリア形成支援教育の手法として有効なプログラムである可能性が示唆された． (Keyword) career advancement program / medical team treatment / experience learning (Tokushima University Institutional Repository) ● Metadata: 82689 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050302172854741376 (Tokushima University Institutional Repository: 82689, CiNii: 1050302172854741376)
6.	Katsuhiko Hirota, Naoki Omura and Tetsuo Ichikawa : 介護予防と義歯, 月刊総合ケア, Vol.13, No.9, 16-20, 2003.
7.	Tetsuo Ichikawa, Naoki Omura, 蟹谷容子, Katsuhiko Hirota and Yoichiro Miyake : デンタルデバイス感染症, Dental Outlook, Vol.99, No.2, 407-416, 2002.
8.	Naoki Omura, Tetsuo Ichikawa, Katsuhiko Hirota and Yoichiro Miyake : デンチャープラークの最前線, デンタルエコー, Vol.122, 31-35, 2001.
9.	寺田容子, Tetsuo Ichikawa, Katsuhiko Hirota and Yoichiro Miyake : 要介護高齢者における咽頭微生物叢について, 私の研究から, Vol.691, 9-11, 2000.
10.	Tetsuo Ichikawa, Toshiya Kashiwabara, 寺田容子, Katsuhiko Hirota and Kenichi Hamada : 電解水を利用した義歯洗浄機イオデント, Dental Outlook, Vol.94, No.3, 623-628, 1999.
11.	Fumiko Michishige, Sumiko Yoshinaga, Toshiko Terao, 原田江梨子, 安岡劭, Katsuhiko Hirota, Yoichiro Miyake, Toshiya Kashiwabara, Tetsuo Ichikawa and Takashi Matsuo : 含嗽の咽頭ぬぐい液細菌数に対する影響, Bulletin of School of Medical Sciences, the University of Tokushima, Vol.7, 35-42, 1997. (Keyword) 嚥下性肺炎 / 含嗽 / 咽頭ぬぐい液細菌数 / レンサ球菌
12.	Kenji Oka, Fumiaki Kawano and Tetsuo Ichikawa : Effect of barium in porcelain on bonding strength of titanium-porcelain system., Dental Materials Journal, Vol.15, No.2, 111-120, 1996. (Summary) The bonding strength to titanium, thermal expansion, and bending strength of glassy porcelain containing barium of 5, 10, and 15 mass% were estimated and compared with those of barium-free porcelain, to estimate the effect of barium content on bonding strength to titanium. The three different glassy porcelains containing barium were made by melting at 950 degrees C. The bonding strength of a commercial porcelain to titanium increased with the addition of barium. Bending strength and thermal expansion were not affected by the barium content. Therefore, the addition of barium to porcelain is effective for strengthening the bonding of porcelain to titanium.

Academic Letter:

1.	Tetsuo Ichikawa : 補綴歯科の挑戦と進化, Annals of Japan Prosthodontic Society, Vol.11, No.2, 83, 2019.
2.	Maki Hosoki, Takashi Matsuo, Toshihiko Nagata, Tetsuo Ichikawa, Yoshizo Matsuka and Eiji Tanaka : 徳島大学病院, Journal of Esthetic Dentistry, Vol.25, No.2, 196, 2013.

Review, Commentary:

1.	Tetsuo Ichikawa, Takaharu Goto and Atsuko Nakamichi : 高齢者の食べる力:健康寿命延伸の鍵, Journal of Japanese Society for Mastication Science and Health Promotion, Vol.34, No.2, 42-48, Nov. 2024.
2.	Keiko Fujimoto, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : Validity of Quantitative and Qualitative Assessments of Skeletal Muscles in the Lower Extremities Using Ultrasound Imaging: A Literature Review, Journal of Oral Health and Biosciences, Vol.36, No.2, 30-35, 2024.
3.	Keiko Fujimoto, Yuki Iwawaki, Takaharu Goto, Takahiro Kishimoto and Tetsuo Ichikawa : 高齢者の義歯を含む口腔衛生状態の評価 ―ATP 拭き取り検査による評価―, 日本義歯ケア学会誌, Vol.15, No.1, 1-8, Dec. 2023.
4.	Tetsuo Ichikawa, 小野高裕, 會田英紀, 飯沼利光, 尾澤昌悟, 中島純子, 松田謙一, 水口一, 長谷川陽子, 大川周治, 藤澤政紀, 西村正宏, 鬼原英道, 丸尾勝一郎, 峯篤史, 佐藤雅介, 村上小夏, 馬場一美, Yoshizo Matsuka, 玉置勝司, Kazuo Okura, 西山暁 and Masamitsu Ohshima : リラインとリベースの臨床指針2023, The Journal of the Japan Prosthodontic Society, 1-43, Mar. 2023.
5.	Tetsuo Ichikawa, 小野高裕, 會田英紀, 飯沼利光, 尾澤昌悟, 中島純子, 松田謙一, 水口一, 長谷川陽子, 大川周治, 藤澤政紀, 西村正宏, 鬼原英道, 丸尾勝一郎, 峯篤史, 佐藤雅介, 村上小夏, 石井智浩, 佐藤佑介, 西尾健介, 西山雄一郎, 吉岡文, 吉田和弘, 渡辺崇文, 馬場一美, Yoshizo Matsuka, 玉置勝司, Kazuo Okura, 西山暁, Masamitsu Ohshima, 河相安彦, 水口俊介, 武部純, 鱒見進一, 村田比呂司, 大久保力廣 and 横山文典 : 軟質リライン材によるリラインのガイドイン2023, The Journal of the Japan Prosthodontic Society, 1-69, Mar. 2023.
6.	Yasuhiko Shirayama and Tetsuo Ichikawa : 最終章:あなたが望むことを提供する, Dental Outlook, Vol.140, No.1, 174-176, Jul. 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520575207906394752 (CiNii: 1520575207906394752)
7.	Yasuhiko Shirayama and Tetsuo Ichikawa : 「複業」するということ, Dental Outlook, Vol.139, No.6, 1250-1252, Jun. 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520012246886855424 (CiNii: 1520012246886855424)
8.	Yasuhiko Shirayama and Tetsuo Ichikawa : 加算という入口から介護保険に踏み込む, Dental Outlook, Vol.139, No.5, 1040-1042, May 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520012246887400704 (CiNii: 1520012246887400704)
9.	Yasuhiko Shirayama, Tetsuo Ichikawa and Mio Kitamura : 介護報酬加算は歯科にはこない!, Dental Outlook, Vol.139, No.4, 816-818, Apr. 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520012246887638016 (CiNii: 1520012246887638016)
10.	Yasuhiko Shirayama and Tetsuo Ichikawa : 歯科は医療・介護業界のハブになれる, Dental Outlook, Vol.139, No.3, 618-620, Mar. 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520293721863768576 (CiNii: 1520293721863768576)
11.	Yasuhiko Shirayama and Tetsuo Ichikawa : 社会保障の枠組みから歯科医療を考える, Dental Outlook, Vol.139, No.2, 392-393, Feb. 2022.
12.	Takahiro Kishimoto, Takaharu Goto, Takashi Matsuda, Yuki Iwawaki and Tetsuo Ichikawa : Application of artificial intelligence in the dental field: A literature review., Journal of Prosthodontic Research, Vol.66, No.1, 19-28, Jan. 2022. (Summary) Application of AI in the dental field has progressed; however, the criteria for evaluating the efficacy of AI have not been clarified. It is necessary to obtain better quality data for machine learning to achieve the effective diagnosis of lesions and suitable treatment planning. (Tokushima University Institutional Repository) ● Metadata: 117143 (Link to Publication Site) ● Publication site (DOI): 10.2186/jpr.JPR_D_20_00139 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33441504 ● Search Scopus @ Elsevier (PMID): 33441504 ● Search Scopus @ Elsevier (DOI): 10.2186/jpr.JPR_D_20_00139 (Tokushima University Institutional Repository: 117143, DOI: 10.2186/jpr.JPR_D_20_00139, PubMed: 33441504)
13.	Tetsuo Ichikawa, Megumi Watanabe, Yuichi Ishida and Yuki Iwawaki : インプラント治療に関わる高齢者の諸問題とその対応インプラント治療における多(他)職種との連携を見据えて, 日本歯科先端技術研究所学術会誌, Vol.27, No.1, 14-21, Feb. 2021. (Summary) 高齢，要介護を見据えてのインプラントの治療計画とその対応，超高齢化が進むなかでインプラント治療において考えるべきことについて概説した．インプラントの設計において，基本的にはケアがしやすく，修理がしやすい構造にすることが挙げられる．また，これまでは避けるべき治療方法，対応方法とされてきた方法，たとえば残存歯との連結や有床義歯の支台歯として使用することなども，終末期に向かうなかではその選択を否定できないか好ましい選択肢となる場合も想定される．インプラントの上部構造を患者の身体的，精神的，社会的状況に合わせ徐々に修正，対応して行くことが求められる． (Keyword) 加齢筋骨格系疾患歯科インプラント歯科補綴死亡性因子無歯顎-部分(治療,外科的療法) 高齢者歯科医療インプラント支持歯科補綴物 *多機関医療協力システム費用効果分析 BMI 自立生活アドバンスケア計画訪問歯科診療筋肉減少症歩行速度フレイル高齢化社会メインテナンス(歯科) ロコモティブシンドローム地域包括ケアシステムヒト高齢者(65∼79) 歯学
14.	Tetsuo Ichikawa : 4年制口腔保健学科のあり方過去から未来へ, Journal of Oral Health and Biosciences, Vol.33, No.2, 29-32, Jan. 2021. (Summary) 大学における歯科衛生士養成の学科としての口腔保健学科の方向性について考察した．歯科医師養成機関設置の歴史を紹介し，さらに口腔保健学科の設置の経緯と理念，社会福祉士養成の意義についても述べた．4年制の口腔保健学科の設置は口腔ケア，口腔衛生の重要性が定着し始めた頃に始まった．本学の口腔保健学科設置に当たって，並立する資格として選んだのが社会福祉士である．社会福祉はもともと社会(保障)制度であって学問ではなかったかもしれないが，今では医学，社会学，心理学，法学，行財政学などの学際的領域の学問が関係している実学であり，社会福祉士と歯科衛生士の資格を持っていることが行政，医療の世界で受け入れやすい状況を作り出している． (Tokushima University Institutional Repository) ● Metadata: 115635 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.33.2_29 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20738/johb.33.2_29 (Tokushima University Institutional Repository: 115635, DOI: 10.20738/johb.33.2_29)
15.	Tetsuo Ichikawa : 歯科におけるSpeechを再認識する「発声・発語・構音」から「Speech」への転換 Speechを生物学から眺める, Dental Outlook, Vol.136, No.1, 194-201, Jul. 2020. (Keyword) 咽頭会話下顎骨危険因子口犬歯歯科医療食行動生物進化成長生物学舌舌骨知覚認知症脳歯発声 *構音退化ヒト動物歯学
16.	Yasuhiko Shirayama, Shizuko Yanagisawa, 一ノ宮実咲, 渡邉彩, Yuko Takeuchi, Tetsuo Ichikawa, Takaharu Goto and 藤原真治 : Current Status and Issues of Community-based Integrated Care System in Tokushima Prefecture -Health Survey of Koyadaira District, Mima City-, Journal of Oral Health and Biosciences, Vol.33, No.1, 24-27, Jun. 2020. (Summary) It is predicted that the population of Tokushima Prefecture will decrease to 550,000 by 2040, and 17 municipalities will disappear. For that reason, the community-based integrated care system (integrated care) must be further developed. The purpose of integrated care is the realization of "community development which you can continue to live as you are in the area where you are accustomed to living". To achieve this, not only medical and care, but also the utilization of new human resources and resources has been demanded. In Japan, based on the Sustainable Development Goals (SDGs), relevant laws and systems will be revised to achieve the agenda set forth by 2030, and it has been strongly suggested that it is necessary to participate the welfare area (Long-term care insurance) not only in medicine but also in dentistry.<br>In this paper, we discuss the current situation and issues of integrated care in Tokushima Prefecture, and discuss the future state in relation to the study of the Koyadaira district in Mima City, which is an area of disappearance. (Keyword) aging / population decline / community-based integrated care system (Tokushima University Institutional Repository) ● Metadata: 114868 (Link to Publication Site) ● Publication site (DOI): 10.20738/johb.33.1_24 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390003825186739072 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.33.1_24 (Tokushima University Institutional Repository: 114868, DOI: 10.20738/johb.33.1_24, CiNii: 1390003825186739072)
17.	Tetsuo Ichikawa : 認知症高齢者に対する歯科治療ガイドラインの活用認知症患者の義歯診療ガイドライン2018, Japanese Journal of Gerodontology, Vol.34, No.4, 466-468, Mar. 2020. (Summary) 認知症患者の歯科的問題を調査し，573個の臨床的疑問(CQ)をまとめた．このうち10個の認知症患者の義歯に関するCQを選び，疑問に対する日本老年歯科医学会の見解，指針を認知症患者における義歯診療ガイドライン2018としてまとめた．認知症患者の義歯補綴関係のガイドライン作成の問題点，ガイドライン2018の作成手順，ガイドラインの概要を紹介した． (Keyword) 義歯口腔保健認知症診療ガイドラインヒト歯学 (Link to Publication Site) ● Publication site (DOI): 10.11259/jsg.34.466 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11259/jsg.34.466 (DOI: 10.11259/jsg.34.466)
18.	Yoritoki Tomotake and Tetsuo Ichikawa : インプラント周囲溝に歯磨剤配合の顆粒は影響するか, Dental Outlook, Vol.135, No.2, 356-363, Feb. 2020. (Keyword) 剤形歯科インプラント(有害作用) 歯垢歯磨剤歯磨きインプラント周囲炎顆粒剤実態調査ヒト歯学
19.	Yasuhiko Shirayama and Tetsuo Ichikawa : 地域のみとりを考える, 地域連携入退院と在宅支援, 44-47, Sep. 2018.
20.	Yuki Iwawaki and Tetsuo Ichikawa : 義歯安定剤中に含有されるアルコールの呼気検査へ影響, The Nippon Dental Review, Vol.78, No.10, 24-26, Sep. 2018.
21.	Yasuhiko Shirayama, Tetsuo Ichikawa, Kazumi Ozaki and Shizuko Yanagisawa : 徳島県地域包括ケアシステム学会, 月刊介護保険, No.264, 28, Feb. 2018.
22.	Tetsuo Ichikawa : 地域包括ケアと長寿福祉口腔保健学, Dental Outlook, Vol.140, No.4, 605-608, Oct. 2017.
23.	Tetsuo Ichikawa, Kazutomo Yagi and Takashi Matsuda : Prosthetic dentistry to maintain oral function in the elderly, Practice in Prosthodontics, Vol.50, No.2, 164-173, Mar. 2017.
24.	Yasuhiko Shirayama, Tetsuo Ichikawa, Shizuko Yanagisawa and Kazumi Ozaki : 離島における福祉崩壊の危機, 月刊介護保険, No.249, 23, Nov. 2016.
25.	石田雄一, 藤本けい子, 檜垣宜明, Takaharu Goto and Tetsuo Ichikawa : 審美補綴のための補綴前処置，アタッチメントレベル・歯頸線審美歯科治療のエンドポイントと評価方法, Annals of Japan Prosthodontic Society, Vol.8, No.2, 161-166, Apr. 2016. (Tokushima University Institutional Repository) ● Metadata: 111853 (Tokushima University Institutional Repository: 111853)
26.	Tetsuo Ichikawa and Kazutomo Yagi : Consensus on requirements of complete denture occlusion, Annals of Japan Prosthodontic Society, Vol.8, No.1, 24-30, Jan. 2016. (Tokushima University Institutional Repository) ● Metadata: 111852 (Tokushima University Institutional Repository: 111852)
27.	Tetsuo Ichikawa, Takaharu Goto, 岩脇有軌, 檜垣宜明 and 内藤禎人 : 力を受ける生体側の観点から(シリーズ:補綴装置および歯の延命のために Part 6 -力のコントロール-), Annals of Japan Prosthodontic Society, Vol.7, No.4, 357-362, Oct. 2015.
28.	Takaharu Goto, 岩脇有軌, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : Personal Identification in Dental Prostheses: A Review of the Literature, Journal of Oral Health and Biosciences, Vol.27, No.2, 21-27, Feb. 2015. (Summary) In disasters such as hydraulic bore, earthquakes and fire, the oral structure including the dental prostheses can provide identifying information. Over the years, many different personal identification system of dental prostheses have been reported. This present study analyzes the published literature offering the description of the personal identification system of dental prostheses.Two databases, "PubMed" and "Japana Centra Revuo Medicina" were searched to retrieve research papers referred to the personal identification system of dental prostheses. Twenty four papers were selected from the database with the criteria, and they were reviewed. This literature search showed that the personal identifications in three kinds of dental prostheses: removable denture, crown and implant were reported; and more papers on removable dentures were extracted compared to the crown and implant, however there is no high quality paper indicating that the structured methods for personal identification of dental prostheses is effective. A new method and common write format for personal identification are required to improve the present problems, and our systems using fluorescent material and ultraviolet light and femtosecond pulse laser-oriented recording system would be effective. (Keyword) 大規模災害 / 個人識別 / 補綴装置 (Tokushima University Institutional Repository) ● Metadata: 109855 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050865122807699968 (Tokushima University Institutional Repository: 109855, CiNii: 1050865122807699968)
29.	津村希望, Yoritoki Tomotake, 石田修 and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第8回上顎前歯部のインプラント補綴から``技工操作の総合的な調整''を学ぶ, The International Journal of Dental Technology, Vol.43, No.2, 208-219, Feb. 2015.
30.	Kouhei Kamoi, Yuji Shimizu, Yuichi Ishida and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第7回審議領域の1歯欠損のインプラント治療から``インプラント周囲組織への配慮''を学ぶ, The International Journal of Dental Technology, Vol.43, No.1, 98-106, Jan. 2015.
31.	津村希望, 石田修, Kan Nagao and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る, The International Journal of Dental Technology, Vol.42, No.12, 14061415, Dec. 2014.
32.	Kouhei Kamoi, Kan Nagao, Yuji Shimizu and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る, The International Journal of Dental Technology, Vol.42, No.11, 1444-1253, Nov. 2014.
33.	Kouhei Kamoi, Yuji Shimizu, Kazutomo Yagi and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第4回少数歯残存症例のパーシャルデンチャーから残存歯との``調和''を学ぶ, The International Journal of Dental Technology, Vol.42, No.10, 1160-1169, Oct. 2014.
34.	Takaharu Goto, Megumi Watanabe and Tetsuo Ichikawa : 問題を抱えた歯の治療計画における意思決定アルゴリズム, the Quintessence, Vol.33, No.9, 183-192, Sep. 2014.
35.	津村希望, Yoritoki Tomotake, 石田修 and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第3回上顎片側中間欠損に対するパーシャルデンチャーから``技師の設計''を学ぶ, The International Journal of Dental Technology, Vol.42, No.9, 1000-1009, Sep. 2014.
36.	津村望希, Yuji Shimizu, Megumi Watanabe and Tetsuo Ichikawa : 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第2回変色支台歯へのオールセラミックブリッジから残存歯との``調和''を学ぶ, The International Journal of Dental Technology, Vol.42, No.8, 908-918, Aug. 2014.
37.	Kouhei Kamoi, 石田修, Yuichi Ishida and Tetsuo Ichikawa : 28. 基本的な歯科技工の``勘どころ'' -臨床例から得られた具体的アドバイスをとおして熟練歯科技工士から新人歯科技工士への技術の継承を図る第1回上顎左側中切歯ジルコニアクラウンから``色感''を学ぶ, The International Journal of Dental Technology, Vol.42, No.7, 765-775, Jul. 2014. (Keyword) Zirconium
38.	Megumi Watanabe and Tetsuo Ichikawa : 【補綴臨床イノベーションのための若手研究者の挑戦 2 治療，検査法の新たな展開】皮膚免疫機構を利用した金属アレルギー検査方法開発へのアプローチ, Dental Outlook, Vol.123, No.5, 1012-1016, 2014. (Keyword) Nicke
39.	Kan Nagao, Takaharu Goto, Yuichi Ishida and Tetsuo Ichikawa : 磁性アタッチメントの診療ガイドライン策定デルファイ法とは, The Journal of the Japanese Society of Magnetic Applications in Dentistry, Vol.21, No.1, 32-36, Dec. 2012.
40.	東光紗知江, Seiko Hongama, 本田剛, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : 口腔ケアと歯科医療デバイス, Shikoku Dental Research, Vol.24, No.2, 35-37, Jan. 2012. (Tokushima University Institutional Repository) ● Metadata: 109813 (Tokushima University Institutional Repository: 109813)
41.	小宮山彌太郎 and Tetsuo Ichikawa : Consensuses on Implant Restoration in Aesthetic Zone, Annals of Japan Prosthodontic Society, Vol.4, No.1, 1-2, Jan. 2012. (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.4.1 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570009750847071360 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.4.1 (DOI: 10.2186/ajps.4.1, CiNii: 1570009750847071360)
42.	東岡紗知江, Kan Nagao and Tetsuo Ichikawa : 【クラウンブリッジ・インプラント・デンチャー補綴臨床のトラブルシューティング】 (Part3)デンチャー編 (Chapter2)義歯のセルフケア, Practice in Prosthodontics, 188-189, May 2011.
43.	Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 【クラウンブリッジ・インプラント・デンチャー補綴臨床のトラブルシューティング】 (Part3)デンチャー編 (Chapter2)装着時のトラブル義歯装着による嘔吐反射, Practice in Prosthodontics, 134-135, May 2011.
44.	Masayo Okajima, Kan Nagao and Tetsuo Ichikawa : 知っておきたい「力」のこと気づく・伝える・守る, デンタルハイジーン別冊, 116-117, Jun. 2010.
45.	Masaaki Yokoyama, Masami Yoshioka, 平島美穂, Nozomi Yokoyama, Kanako Tamatani, Hiroki Iga and Tetsuo Ichikawa : 徳島大学病院入院患者の歯科的ニーズ口腔管理センターにおける受け入れ状況から, Shikoku Dental Research, Vol.22, No.2, 173-177, Jan. 2010. (Keyword) 外来治療 (Tokushima University Institutional Repository) ● Metadata: 109795 (Tokushima University Institutional Repository: 109795)
46.	Masami Yoshioka, Masaaki Yokoyama and Tetsuo Ichikawa : Oral health care for severe human cases encountered in Intensive Care Unit: professional oral care at Tokushima University Hospital Intensive Care Unit, Shikoku Acta Medica, Vol.65, No.1,2, 12-19, Apr. 2009. (Summary) In-depth oral care toward severe human cases is crucial for the management of their general condition. As a matter of fact, maintenance of a good oral hygiene condition can reduce the risk for developing respiratory diseases such as aspiration pneumonia and ventilator-associated pneumonia. In September 2007, we initiated at Tokushima University Hospital Intensive Care Unit (ICU)a collaboration between nurses and medical doctors to provide professional oral care to patients. The aim of this activity was to establish a standardized protocol of oral care in order to reduce the risk for infectious disease complications for inpatients undergoing respiratory care. At the initial oral examination, the majority of patients in ICU had dry lips, and showed tongue coating and the presence of oral debris on tooth and oral mucosa surfaces. In addition, we sometimes observed ulcer formation on oral mucosa or tooth mobility, which are conditions that ICU members should pay an attention when fixing the endotracheal tube. Our professional oral care protocol reduced oral debris, dry mouth, and oral malodor to some extent in the majority of patients at ICU. An intensive collaboration between dental professionals with nurses and medical doctors, was favored through this activity. Our long-term objective is to contribute to the maintenance of general condition continuously as a member of multi-professional team. (Keyword) professional oral care / ventilator-associated pneumonia / VAP / ICU (Tokushima University Institutional Repository) ● Metadata: 110269 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050583647830858752 (Tokushima University Institutional Repository: 110269, CiNii: 1050583647830858752)
47.	Seiichiro Kitamura, Kaori Sumida and Tetsuo Ichikawa : 歯科医師・口腔外科医に必要な局所解剖学の知識7—口峡とその周辺—発音・嚥下機能を理解するうえで知っておくべきこと, Dental Outlook, Vol.111, No.1, 108-115, Jan. 2008.
48.	Seiichiro Kitamura, Kaori Sumida and Tetsuo Ichikawa : 歯科医師・口腔外科医に必要な局所解剖学の知識2—口唇と頬—美しい顔は美しい口元から, 歯階展望, Vol.110, No.2, 266-273, Aug. 2007.
49.	Seiichiro Kitamura, Kaori Sumida and Tetsuo Ichikawa : 見える!わかる! 臨床に役立つ解剖写真集 8, Dental Outlook, Vol.108, No.2, 304-309, Aug. 2006.
50.	Tetsuo Ichikawa, Seiko Hongama and Kan Nagao : 全部床義歯による無歯顎補綴治療発音と嚥下機能から全部床義歯を語る, Practice in Prosthodontics, Vol.38, No.5, 532-539, Jul. 2006.
51.	Seiichiro Kitamura, Kaori Sumida and Tetsuo Ichikawa : 見える!わかる!臨床に役立つ解剖写真集, Dental Outlook, Vol.107, No.1, 79-84, Jan. 2006.
52.	Kan Nagao, Fumiaki Kawano and Tetsuo Ichikawa : Selection of Occlusal Scheme for Complete Dentures, The Journal of the Japan Prosthodontic Society, Vol.49, No.1, 4-6, Feb. 2005. (Keyword) Dental Occlusion / Denture Design / Denture, Complete / Humans / Jaw, Edentulous / Mastication (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15844265 ● Search Scopus @ Elsevier (PMID): 15844265 (PubMed: 15844265)
53.	Kan Nagao, Fumiaki Kawano and Tetsuo Ichikawa : Selection of Occlusal Scheme on the Basis of Pressure Distribution on Supporting Structures under Complete Denture, The Journal of the Japan Prosthodontic Society, Vol.48, No.5, 673-680, Dec. 2004. (Summary) In case of making complete dentures, we have to consider not only denture stability but also the restoration of aesthetics and function such as mastication and speech. However these are contradictory theoretically from the point of view of denture stability, and it is very difficult to satisfy both requirements in the case of a patient who has poor upper and lower alveolar ridges. We investigated the effect of artificial posterior teeth form and occlusal scheme on the distribution of pressure on supporting structures under complete dentures during mastication with upper and lower edentulous simulators. In this report, a guideline for the selection of occlusal scheme for complete dentures, based on our previous investigations, is described. The occlusal scheme remarkably affected the distribution of pressure under simulated complete dentures, as shown by comparing the distribution of pressure using two different occlusal schemes:fully balanced occlusion and lingualized occlusion. However other factors such as posterior teeth form and position affect the distribution of pressure as well, and are related to each other. Therefore, not only occlusal scheme but also posterior artificial teeth form has to be considered, and the form of posterior teeth should be carefully and comprehensively decided when making complete dentures. (Keyword) pressure distribution / complete denture / occlusal scheme / posterior teeth form (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15818000 ● Search Scopus @ Elsevier (PMID): 15818000 (PubMed: 15818000)
54.	Tetsuo Ichikawa and Megumi Watanabe : 補綴処置における診査診断の観点から, DE, Vol.150, 11-12, Jul. 2004.
55.	Tetsuo Ichikawa and Megumi Watanabe : 歯科補綴の未来·補綴技術の継承と他分野への発信, Practice in Prosthodontics, Vol.37, No.4, 400-407, Jul. 2004.
56.	Kenji Oka, Tetsuo Ichikawa and Inoue Sanshiro : Application of laser to the prothoetic treatment, Shikoku Dental Research, Vol.14, No.2, 265-276, Jan. 2002.
57.	Seiichiro Kitamura and Tetsuo Ichikawa : 口腔解剖学の視点から義歯の床縁形態を考える—舌·舌骨とその周辺—, QDT, Vol.27, No.4, 405-414, 2002.
58.	Hiromichi Yumoto, Takashi Matsuo and Tetsuo Ichikawa : 義歯とカンジダ, Medicine and Drug Journal, Vol.37, No.10, 211-217, Oct. 2001.
59.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.9, 1254-1261, Sep. 2001.
60.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.8, 1102-1108, Aug. 2001.
61.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.7, 962-968, Jul. 2001.
62.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.6, 770-775, Jun. 2001.
63.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.5, 620-624, May 2001.
64.	Fumiaki Kawano and Tetsuo Ichikawa : 軟質裏装材の劣化, Dental Outlook, Vol.97, No.4, 858-859, Apr. 2001.
65.	Seiichiro Kitamura, Tetsuo Ichikawa and 松本直之 : 口腔解剖学の視点から義歯の床縁形態を考える, Quintessence of Dental Technology, Vol.26, No.4, 502-507, Apr. 2001.
66.	Fumiaki Kawano, Naoyuki Matsumoto and Tetsuo Ichikawa : Viscoelastic properties of soft denture liners, Shikoku Dental Research, Vol.13, No.2, 231-240, 2001. (Keyword) 軟質裏装材 / 粘弾性 / 吸水性
67.	Tetsuo Ichikawa and Katsuhiko Hirota : Denture Plaque Control for Prevention of Systemic Infection. Featuring Candida spp. and Helicobacter pylori., The Journal of the Japan Prosthodontic Society, Vol.43, No.4, 640-648, Aug. 1999. (Keyword) Denture Plaque / Candeda spp. / Helicobacter Pylori / Prevention of Infection (Link to Publication Site) ● Publication site (DOI): 10.2186/jjps.43.640 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679385051776 ● Search Scopus @ Elsevier (DOI): 10.2186/jjps.43.640 (DOI: 10.2186/jjps.43.640, CiNii: 1390282679385051776)
68.	Naoyuki Matsumoto, Fumiaki Kawano, Kan Nagao and Tetsuo Ichikawa : Consideration of the Selection of the Artificial Posterior Teeth on the Basis of Pressure Distribution under a Denture, Quintessence of Dental Technology, Vol.23, No.9, 17(1129)-26(1138), Sep. 1998. (Keyword) フルデンチャー / 臼歯部人工歯 / 咬合様式 / 負担圧分布

Proceeding of International Conference:

1.	Kikuji Yamashita, Hiroyuki Morimoto, Masahide Nakao, Hidemi Ukai, Takeo Hamawa, Tetsuo Ichikawa and Seiichiro Kitamura : Intact extracellular matrix can be utilized for bio-integrated materials and tissue engineering,
2.	Mohammad Fadyl Yunizar, Megumi Watanabe, Lipei Liu and Tetsuo Ichikawa : The pathogenesis of oral lichen planus related to metal reaction, International College of Prosthodontics, 19th Biennial Meeting, Sep. 2021.
3.	Lipei Liu, Megumi Watanabe, Mohammad Fadyl Yunizar and Tetsuo Ichikawa : Semaphorin3A Promotes the Development of Nickel Allergy, International College of Prosthodontics, 19th Biennial Meeting, virtual meeting, Sep. 2021.
4.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : A novel three-dimensional face modeling using photogrammetry in dental chair-side, The 6th Biennial Joint Congress of CPS-JPS-KAP (Online), Feb. 2021.
5.	Takaharu Goto, Tsukasa Hihara, Keiko Fujimoto, Kan Nagao and Tetsuo Ichikawa : Sex difference of clinical cascade from oral hypofunction to physical frailty, The 7th Biennial Joint Congress of KAP-CPS-JPS, Mar. 2019.
6.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : Neuroscientific evaluation of periodontal tactile with/without sensory integration task: comparison between incisor and molar teeth, 11th Biennial Congress of Asian Academy of Prosthodontics, Kuala Lumpur, Malaysia, Sep. 2018.
7.	Takaharu Goto, Tsukasa Hihara, Tagami Yoshihiro, Yuki Iwawaki, Kan Nagao and Tetsuo Ichikawa : Investigation with questionnaires on symptoms of physical frailty and eating behaviors, 11th Biennial Congress of Asian Academy of Prosthodontics, Kuala Lumpur, Malaysia, Sep. 2018.
8.	Tetsuo Ichikawa, Takaharu Goto, Tsukasa Hihara, Tagami Yoshihiro and Kan Nagao : A quantitative evaluation of oral frailty-physical frailty relationship model based on covariance structure analysis, 11th Biennial Congress of Asian Academy of Prosthodontics, Kuala Lumpur, Malaysia, Sep. 2018.
9.	Kazumitsu Sekine, Yoshihito Naitou, Tetsuo Ichikawa, Otto Baba and Kenichi Hamada : Development of structural and chemical enforcement of neointimal growth as the blood contacting surface for the vascular prosthesis, 45th European Society for Artificial Organs 2018 Congress, Madrid, Sep. 2018.
10.	Takaharu Goto, Hihara Tsukasa, Kishimoto Takahiro, Takashi Matsuda, Yuki Iwawaki, Kan Nagao and Tetsuo Ichikawa : Investigation with questionnaires on symptoms of oral frailty and eating behaviors: Importance of chewing, Biennial Joint Congress of JPS-CPS-KAP, Wenzhou, China, Oct. 2017.
11.	Tetsuo Ichikawa, Higaki Nobuaki, Takaharu Goto, Kishimoto Takahiro, Yuki Iwawaki, Takashi Matsuda, Ishida Yuichi and Watanabe Megumi : A comparison of the occlusal force-sustaining ability of natural and dental implant patients during a sensory integration task, Biennial Joint Congress of JPS-CPS-KAP, Wenzhou, China, Oct. 2017.
12.	Takaharu Goto and Tetsuo Ichikawa : Frailty and Oral Frailty in super-aging society: Physiological considerations and Prosthodontic Strategy, Biennial Joint Congress of JPS-CPS-KAP, Wenzhou, China, Oct. 2017.
13.	Takashi Matsuda, Kurahashi Kosuke, Ishida Yuichi, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : Part-digitizing system for complete denture fabrication using digital impression and specialized CAD/CAM tray, The 17th Biennial Meeting of International College of Prosthodontists, Santiago, Chile, Sep. 2017.
14.	Kishimoto Takahiro, Takaharu Goto and Tetsuo Ichikawa : Differences in prefrontal activities under sensory integration task: Comparison between incisor and molar teeth, The 17th Biennial Meeting of International College of Prosthodontists, Santiago, Chile, Sep. 2017.
15.	Takaharu Goto, Hihara Tsukasa, Kishimoto Takahiro, Takashi Matsuda and Tetsuo Ichikawa : Influence of solitary eating in the elderly on symptoms on Oral frailty and Physical frailty, The 17th Biennial Meeting of International College of Prosthodontists, Santiago, Chile, Sep. 2017.
16.	Megumi Watanabe and Tetsuo Ichikawa : The effect of ELF pulsed magnetic fields on osteoblast differentiation via MAP kinase pathways, International College of Prosthodontists, Sep. 2017.
17.	Junya Asano, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Shinsuke Konaka, Fumio Shichijo, Yoshio Kaji, Kazuhiko Furukawa and Tetsuo Ichikawa : Automated repetitive saliva swallowing test using magnetic sensors, Abstracts book of the 16th International Conference on Biomedical Engineering, 124, Singapore, Dec. 2016.
18.	Prananingrum Widyasri, Yoshihito Naitou, Kazumitsu Sekine, Kenichi Hamada and Tetsuo Ichikawa : Application of porous titanium in tailored post-core systems using a moldless process: evaluation of the physical and mechanical properties with different particle sizes, International Dental Materials Congress 2016, Bali, Nov. 2016.
19.	Teruaki Ito, HAMID Abdul Rahimah and Tetsuo Ichikawa : Collaborative Design and Manufacturing of Prosthodontics Wire Clasp, Proceedings of the 23th ISPE International Conference on Concurrent Engineering, 421-428, Curitiba, Oct. 2016. (Link to Publication Site) ● Publication site (DOI): 10.3233/978-1-61499-703-0-421 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3233/978-1-61499-703-0-421 (DOI: 10.3233/978-1-61499-703-0-421)
20.	Prananingrum Widyasri, Yoritoki Tomotake, Yoshihito Naitou, Kazumitsu Sekine, Kenichi Hamada and Tetsuo Ichikawa : Sintering Time and Its Influence on Moldless-Processed Porous Titanium's Properties, 94th General Session and Exhibition of the International Association for Dental Research, Seoul, Jun. 2016.
21.	Yoshihito Naitou and Tetsuo Ichikawa : Potential bone forming properties of simvastatin loaded microspheres in a rabbit critical sized defect model 23th European association for osseointegration, Rome, Sep. 2015.
22.	Takaharu Goto, Yoritoki Tomotake, Yuichi Ishida, Nobuaki Higaki, Kan Nagao and Tetsuo Ichikawa : Functional Significance of the Main Occluding Area for Partially Edentulous, 16th Biennial Meeting of International College of Prosthodontists, Sep. 2015.
23.	Nobuaki Higaki, Takaharu Goto, Yuki Iwawaki, Kan Nagao and Tetsuo Ichikawa : Brain Function on Modulation of Occlusal Force and Sensory Integration, 16th Biennial Meeting of International College of Prosthodontists, Sep. 2015.
24.	Megumi Watanabe and Tetsuo Ichikawa : Magnetic Fields Enhanced Osteoblast Differentiation via ERK Pathways, 16th International College of Prosthodontics Biennial Meeting, Seoul, Sep. 2015.
25.	Shiori Nakamura, Nobuaki Higaki, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : Effect analysis of oral stimulation to prevent dementia focusing on the individual sensibility, 16th Biennial Meeting of International College of Prosthodontists, Sep. 2015.
26.	Kazutomo Yagi, AA Lowe, NT Ayas, JA Fleetham, Tetsuo Ichikawa and FR Fernanda : Parallel changes in the frequency of respiratory event and swallowing during sleep in obstructive sleep apnea patients with and without a mandibular advancement device, American Academy of Dental Sleep Medicine, 24th Annual Meeting,, Seattle, Jun. 2015.
27.	Kazumitsu Sekine, Jiyon Be, Yoshihito Naitou, Tetsuo Ichikawa and Kenichi Hamada : Development of micro-porous Titanium scaffold for promoting the early neointimal growth, Materials Today Asia 2014, Hong Kong, Dec. 2014.
28.	Takashi Matsuda, Takaharu Goto, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : Possibility of Complete Denture Fabrication using Digital Technology: the possibility of Contactless Digital Preliminary Impression, The 3rd ASEAN plus and TOKUSHIMA Joint International Conference on ``Strategic Achievement of Oral Sciences and Promotion of Quality of Life'', Makassar, Dec. 2014.
29.	Nobuaki Higaki, Takaharu Goto, Yuichi Ishida, Kan Nagao and Tetsuo Ichikawa : Effects of vibratory and gustatory stimulations on cerebral blood flows, The 3rd ASEAN plus and TOKUSHIMA Joint International Conference ``Strategic Achievement of Oral Sciences and Promotion of Quality of Life'', Makassar, Dec. 2014.
30.	Megumi Watanabe and Tetsuo Ichikawa : Extremely Low Frequency Pulsed Magnetic Fields Accelerate Osteoblast Differentiation, 3rd ASEAN plus and TOKUSHIMA Joint International Conference, Makassar, Dec. 2014.
31.	Yuki Iwawaki, Noriko Mizusawa, Yoritoki Tomotake, Tetsuo Ichikawa and Katsuhiko Yoshimoto : Mechanical stress - responsive microRNA, The 3rd ASEAN plus and TOKUSHIMA Joint International Conference, Makassar, Indonesia, Dec. 2014.
32.	Takaharu Goto, Yoritoki Tomotake, Yuichi Ishida, Nobuaki Higaki, Kan Nagao and Tetsuo Ichikawa : Clinical significance of the main occluding in prosthodontic treatment, The 3rd ASEAN plus and TOKUSHIMA Joint International Conference on ``Strategic Achievement of Oral Sciences and Promotion of Quality of Life'', Makassar, Dec. 2014.
33.	Tsuyoshi Honda, Keiko Fujimoto, Takuro Baba, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : Elucidation of swallowing Sound Production Mechanism Using Ultrasonography, Indonesian and Japan Prosthodontic Society JOINT MEETING, Bali, Nov. 2014.
34.	Takashi Matsuda, Tetsuo Ichikawa, Takaharu Goto, Toshiya Kashiwabara and Kan Nagao : Digital preliminary impression for complete denture fabrication, Indonesia Japan Prosthodontic Society JOINT MEETING, Bali, Oct. 2014.
35.	Kan Nagao, Takaharu Goto and Tetsuo Ichikawa : Which is better for complete denture wearers, fully balanced occlusion or lingualized occlusion, Indonesian and Japan Prosthodontic Society JOINT MEETING, Bali, Oct. 2014.
36.	Takaharu Goto, Yuichi Ishida, Megumi Watanabe, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : Location of the main occluding area after implant treatment, 38th Annual Conference of The European Prosthodontic Association, Istanbul, Sep. 2014.
37.	Megumi Watanabe and Tetsuo Ichikawa : Analysis of Small GTPases in Keratinocytes during Nickel Allergy Development, 38th Annual Conference of The European Prosthodontic Association, Istanbul, Sep. 2014.
38.	Sachie Toko, Tetsuo Ichikawa, Atsuko Nakamichi, Tsuyoshi Honda and Kan Nagao : Properties of Food Bolus for Assessing Quality of Mastication, 38th Annual Conference of The European Prosthodontic Association, Istanbul, Sep. 2014.
39.	Teruaki Ito, Eiichi Honda, Tetsuo Ichikawa, Yohsuke Kinouchi, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 1/F noise-fluctuated cozy lighting system for concentration improvement, Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, No.34335, 1-10, Buffalo, Aug. 2014. (Summary) The power spectrum of human heart rate measured over 24 h exhibits "power-law" 1/f alpha-type spectral behavior with alpha approximately 1. This may be one of the reasons why 1/f noise help people make relaxed, or feel comfortable. As a result, people feel relaxed by looking at a candle light, listening to the sound of ocean wave, or feeling the breezing wind because all of these natural phenomenon is based on the 1/f noise fluctuation. Considering this feature, a technical approach of 1/f noise fluctuation has been applied to various industry products, ranging from light illumination, fan control, temperature control, etc. to implement cozy products. For example, one typical example would be a lighting product mimicking a candle light, which illuminate just like a true candle. A candle light provides a cozy atmosphere to relax our mind by forgetting severe business issues, which is because of the nature of 1/f noise fluctuation as mentioned above. However, it is not suitable to do something important by concentration under a candle light because of the changes of brightness and the blinking nature of candles. This study designs and develops 1/f noise-fluctuated cozy lighting system with stable brightness and chromaticity without blinking so that people unconsciously feel relaxed under this lighting system without noticing the 1/f noise fluctuation and concentrate on work or operation. In order to implement this lighting system, combination of two types of white LED lights were used. White LED lights are manufactured by the combination of different colors having different spectrum. For example, Blue with YAG fluorophore, Blue with RG fluorophore, UV with RGB fluorophore, etc. provide all white LED lights. This means that it is possible to make two different types of LED lights which have the same white color with different combination of spectrums. If the two white colors of the two LED are the same, nobody cannot notice when the two LEDs are switching over each other, periodically or randomly. People only think that the white color is constantly provided by the white LED light. However, if the switching is based on 1/f noise fluctuation, some positive effect can be expected under this lighting system. This paper shows the overview of the idea of 1/f noise-fluctuated cozy lighting system, and then presents the two basic challenges of the idea towards concentration improvement; Combination of two types of white LED and 1/f noise-fluctuated switching system. These two challenges are presented using a prototype lighting systems developed in this study. (Link to Publication Site) ● Publication site (DOI): 10.1115/DETC2014-34335 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1115/DETC2014-34335 (DOI: 10.1115/DETC2014-34335)
40.	Tetsuo Ichikawa : Pore size control of porous titanium bone substitution using moldless and space holder method The 9th Scientific Meeting of the Asian Academy of Osseointegration., Sapporo, Jul. 2014.
41.	Tetsuo Ichikawa : Application of resilient liner for attachment of implant - overdenture. The 9th Scientific Meeting of the Asian Academy of Osseointegration., Sapporo, Jul. 2014.
42.	Kazutomo Yagi, AA Lowe, NT Ayas, JA Fleetham, Tetsuo Ichikawa and FR Almeida : Postural movement of the mandible associated with inspiratory effort during sleep in obstructive sleep apnea patients., American Academy of Dental Sleep Medicine, 23rd Annual Meeting, Minneapolis, Jun. 2014.
43.	Kazumitsu Sekine, Jiyon Be, Yoshihito Naitou, Tetsuo Ichikawa and Kenichi Hamada : Fundamental studies of micro-porous titanium scaffold for obtaining the neointimal formation., Joint congress of 51st Annual Meeting of the Japanese Society for Artificial Organs and 5th Congress of the International Federation for Artificial Organs, Yokohama, Sep. 2013.
44.	Yuichi Ishida, Hideki Suito, Yoritoki Tomotake and Tetsuo Ichikawa : Prediction of prosthetic complications in the superstructure by assessing changes in the provisional restoration., The 15th Biennnial Meeting of International College of Prosthodontics, Turin, Sep. 2013.
45.	Yuichi Ishida, 水頭英樹, Yoritoki Tomotake and Tetsuo Ichikawa : Prediction of prosthetic complications in the superstructure by assessing changes in the provisional restoration., The 15th Biennnial Meeting of International College of Prosthodontics, Turin, Sep. 2013.
46.	Takaharu Goto, Atsuko Nakamichi, Sachie Toko, Tsuyoshi Honda, Kan Nagao and Tetsuo Ichikawa : Assessments of Quality of mastication: Relationship between overall eating behavior and mastication, The 15th Biennial Meeting of International College of prosthodontics, Turin, Sep. 2013.
47.	Nobuaki Higaki, Takaharu Goto, Yuki Iwawaki, Kan Nagao and Tetsuo Ichikawa : Efficiency of oral stimulations on brain function activities: Evaluations using wearable near-infrared spectroscopy, The 15th Biennial Meeting of International College of prosthodontics, Turin, Sep. 2013.
48.	Osamu Isida, Yoritoki Tomotake and Tetsuo Ichikawa : The development of implant superstructures: especially considering the retrievability., Programs and Abstracts of Biennial Meeting of Asian Academy of Prosthodontics., Vol.8, 135, Dec. 2012.
49.	Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : Systematic literature review on sensation of osseointegrated implants., Programs and Abstracts of Biennial Meeting of Asian Academy of Prosthodontics., Vol.8, 137, Dec. 2012.
50.	Yoritoki Tomotake, Takaharu Goto and Tetsuo Ichikawa : The Relationship between Main Occluding Area and Prosthetic Complains in Implant Superstructure., The 8th Biennial Meeting of Asian Academy of Prosthodontics, Vol.8, 139, Chennai, Dec. 2012.
51.	Hideki Suito, Takaharu Goto, Yuki Iwawaki, Yoritoki Tomotake and Tetsuo Ichikawa : Oral factors affecting titanium elution and corrosion; in vitro study using SBF solution., ASEAN plus and TOKUSHIMA Joint International Conference"Strategic Achievement of Oral Sciences and Promotion of Quality of Life", Dec. 2012.
52.	Takaharu Goto, Nobuaki Higaki, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : Sensation of osseointegrated implants: literature review and new neurophysiological approach, ASEAN plus and TOKUSHIMA Joint International Conference"Strategic Achievement of Oral Sciences and Promotion of Quality of Life", Dec. 2012.
53.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : A Trial of Complete Denture Fabrication using Digital Technology: in vitro Evaluation of digital impression, ASEAN plus and TOKUSHIMA Joint International Conference"Strategic Achievement of Oral Sciences and Promotion of Quality of Life", Yogyakarta, Dec. 2012.
54.	Sachie Toko, Hitoshi Higa, Tsuyoshi Honda, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : Changes in the physical properties of food bolus and mandibular movement during mastication, ASEAN plus and TOKUSHIMA Joint International Conference on "Strategic Achievement of Oral Sciences and Promotion of Quality of Life", Yogyakarta, Dec. 2012.
55.	Teruaki Ito, Hanumare C. Nevan, Tetsuo Ichikawa and Slocum H. Alexander : Expectation management in a global collaboration project using a deterministic design approach, Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, No.70296, 1-8, Chicago, Aug. 2012. (Summary) Expectation management in product engineering design aims at setting achievable goals for both customers and designers, while leaving room for creativity and passion. This is especially challenging in the global workplace. Using an example of a design project, the Dental Headrest project (DHR), this paper reviews how expectations were managed in a successful, collaborative project between the University of Tokushima (UT) and Massachusetts Institute of Technology (MIT). The goal of the project was to design an innovative mechanism for the positioning a dental chair headrest so satisfy both the needs of a patient for comfort and a clinician for flexibility and access. The design team was formed with six students from the MIT MechE's Precision Machine Design class, while the challenge proposed by a UT team of dentists and design engineers. The team followed a deterministic design procedure inducing understating the challenge and reviewing prior art, strategy and concept generation, detailed module design and fabrication and testing, culminating in presentation and documentation. Through the process was coordinated by online communication and collaborative working spaces which ensured real-time information transfer between the continents. The conclusion was a face-to-face meeting between the two institutions. This DHR project resulted in an innovative design of headrest adjusting mechanism that was implemented in a prototype. Moreover, the students, faculty and clinicians benefitted from the experience of innovative design collaboration in a multidisciplinary, global team.
56.	Yoshihito Naitou, Hideki Suito, Kenichi Hamada and Tetsuo Ichikawa : Fabrication of porous titanium using moldless and space holder technique, 90th General Session and Exhibition of the International Association for Dental Research, Iguase Falls, Brazil, Jun. 2012.
57.	Yoshihito Naitou, 水頭英樹, Kenichi Hamada and Tetsuo Ichikawa : Fabrication of porous titanium using moldless and space holder technique, 90th General Session and Exhibition of the International Association for Dental Research, Iguase Falls, Brazil, Jun. 2012.
58.	Takaharu Goto, Takashi Matsuda, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : Digital dentistry in complete denture fabrication, --- Feasibility study ---, International Symposium on Oral Health Education and Research, Balikpapan, Dec. 2011.
59.	Yuki Iwawaki, Yoshihito Naitou, Li Jing, Kan Nagao and Tetsuo Ichikawa : The long-term change in properties of the anti-microbiological tissue conditioner containing Juncus powder, The 7th Biennial Meeting of AAP, Shanghai, Oct. 2011.
60.	Megumi Watanabe and Tetsuo Ichikawa : Extremely Low Frequency Pulsed Magnetic Fields Accelerate Osteoblast Differentiation, International College of Prosthodontics, Sep. 2011.
61.	Takaharu Goto, Kan Nagao, Yuichi Ishida, Yoritoki Tomotake and Tetsuo Ichikawa : Influence of Attachments On Load Transfer in Implant Overdentures: Effect Of Denture Rigidity, 14th Meeting of International College of Prosthodontists, Hawaii, Sep. 2011.
62.	Teruaki Ito, Masayoshi Taniguchi and Tetsuo Ichikawa : Regeneration of 3D profile line using a combination of photo images and target markers, Proceedings of the 18th ISPE International Conference on Concurrent Engineering, No.XXI, 293-300, Cambridge, MA, USA, Jul. 2011. (Summary) Photogrammetry technique is regarded as one of the promising tools to reconstruct 3D shape from several photo images. The feasibility of the technique is studies in various areas such as, reconstruction of architectural objects, building constructions, industrial products, etc. However, applications of this technique have been conducted for rather large sized objects. This study focuses on this technique and proposes a method of 3D model reconstruction based on the combination of digital camera images and several target markers in order to apply for rather small sized target objects. First, this paper shows the conventional reverse modelling technique. Then, the overview of photogrammetry-based reverse modelling technique is presented to compare it with the conventional method. In order to measure the accuracy of photogrammetry-based reverse modelling, several experiments were conducted, of which results are presented. Some reverse modelling examples based on photogrammetry is presented, including the contour line and surface for freeform surface of a target object. (Keyword) Photogrammetry / reverse modelling / contour line and surface
63.	Ashrin Nur Meinar, Naozumi Ishimaru, Megumi Watanabe, Yoshio Hayashi and Tetsuo Ichikawa : Analysis of Molecular Mechanism for Pathogenesis of Metal Allergy, International Joint Symposium, The University of Tokushima-Niigata University-Gajah Mada University, Bali, Dec. 2010.
64.	Kenichi Hamada, Yoshihito Naitou, Daisuke Nagao, Yoritoki Tomotake, Tetsuo Ichikawa and Kenzo Asaoka : Properties of Porous Titanium using Moldless Process, International Joint Symposium on Oral Science, Denpasar, Dec. 2010.
65.	Takaharu Goto, Kan Nagao, Yuichi Ishida, Yoshihito Naitou, Yoritoki Tomotake and Tetsuo Ichikawa : Observation of the Main ccluding Area with Partually bentate, changes before/after Prosthetic Treatments., 6th Scientific Meeting Asian Academy of Osseointegration, Seoul, Nov. 2010.
66.	Takanori Kawano, Tetsuo Ichikawa, Yoshihito Naitou, Megumi Watanabe and Takaharu Goto : Surface Modification of Titanium by Blue-violet Semiconductor Laser and Ultraviolet Light Emitting Diode, 19th Annual Scientific Meeting European Assocoation for Osseintegration, Glasgow, Oct. 2010.
67.	Megumi Watanabe and Tetsuo Ichikawa : Extremely low frequency pulsed magnetic fields accelerate osteoblast differentiation, 19th Annual Scientific Meeting European Assocoation for Osseintegration, Glasgow, Oct. 2010.
68.	Yoshihito Naitou, Kenichi Hamada, Takaharu Goto, Megumi Watanabe, Daisuke Nagao, Yoritoki Tomotake and Tetsuo Ichikawa : Powder-size effect on biocompatibility of porous-titanium produced using moldless-process, 19th Annual Scientific Meeting European Assocoation for Osseintegration, Glasgow, Oct. 2010.
69.	Takaharu Goto, Kan Nagao, Yuichi Ishida, Yoshihito Naitou, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : Influence of Attachments on Load Transfer in Implant Overdentures, 19th Annual Scientific Meeting European Assocoation for Osseintegration, Glasgow, Oct. 2010.
70.	A Kimura, H Arakawa, ES Hara, Yoshizo Matsuka, Tetsuo Ichikawa and T Kuboki : A newly-developed retrospective appraisal method for prosthodontic treatment efficacy, International Association for Dental Research, Barcelona, Jul. 2010.
71.	Kenichi Hamada, Yoshihito Naitou, Daisuke Nagao, Yoritoki Tomotake, Tetsuo Ichikawa and Kenzo Asaoka : Smart process of porous titanium for tailor-made medical and dental devices, Thermec (International Conference on Processing & Manufacturing of Advanced Materials) 2009, Berlin, Aug. 2009.
72.	Yoshihito Naitou, Daisuke Nagao, Yoritoki Tomotake, Kenichi Hamada, Kenzo Asaoka and Tetsuo Ichikawa : Bioactivity of porous titanium prodeced by a newly developing moldless process, 2nd International Symposium and Workshop "The future Direction of Oral Sciences in the 21st Century", Tokushima, Dec. 2007.
73.	Yutaka Sato, Teruaki Ishikawa, Eiichi Bando, Masanori Nakano, Tetsuo Ichikawa, Maki Hosoki and Shuji Shigemoto : Development of Real-time Monitor for Examination of Occlusal Harmony, 12th Meetings of the International College of Prosthodontists, 190, Fukuoka, Sep. 2007. (Summary) (Purpose) In the case preparing teeth that guide lateral excursion, prosthodontists reproduce and record original lateral jaw movements on an adjustable articulator and make restorations. However, intra-oral occlusal quilibration before setting restorations is still difficult because there is no procedure to compare jaw movements before and after restoration at the chair-side. The purpose of the study was to develop a new computer-aided technique to record and display the.relationship between incisal point path and condylar point path as diagnostic examination in real-time. (Materials and Methods) Jaw motions were recorded by magnetic jaw-tracking device(CSIIi) with 3 µm accuracy is 3 micro meters. A new software which was developed with C++ class library (Trolltech Qt) and Graphic Library (Mesa), is capable to display 1) path of incisal and condylar points, and 2)the diagnostitic diagram of relationship between incisal path and balancing-side condylar path. We measured frame rate and delay-time of displaying jaw motions with 2.4GHz of computer-clock. (Results) Our software can visualize incisal and condylar path with 25 frames per second (FPS) and display with time lag of 265ms. Diagram can display the relationship between incisal path and balancing condylar path dynamically with 12.5 FPS. (Conclusion) Our system can record jaw movements and display diagnostic diagram immediately at the chair-side. The new technique visualizing the comparison of diagnostic data before and after treatment is useful in the examination of occlusal harmony. (Keyword) Realtime monitor /
74.	Yoshihito Naitou, Kenichi Hamada, Daisuke Nagao, Yoritoki Tomotake, Tetsuo Ichikawa and Kenzo Asaoka : Bioactivity of porous titanium produced using moldless process, 6th International Symposium on Titanium in Dentistry, Kyoto, Jul. 2007.
75.	Kenichi Hamada, Yoshihito Naitou, Daisuke Nagao, Yoritoki Tomotake, Tetsuo Ichikawa and Kenzo Asaoka : Moldless Process of Producing Porous Titanium for Dental Applications, 6th International Symposium on Titanium in Dentistry, Kyoto, Jun. 2007.
76.	Yoshihito Naitou, Daisuke Nagao, Tetsuo Ichikawa, Kenzo Asaoka and Kenichi Hamada : High formable porous titanium for biomedical applications, International Association for Dental Research, New Orleans, Mar. 2007.
77.	Yoshihito Naitou, Daisuke Nagao, Kenichi Hamada, Kenzo Asaoka and Tetsuo Ichikawa : High formability of newly developing biomedical porous titanium, 1st International Symposium and Workshop "The future Direction of Oral Sciences in the 21st Century", Awaji, Mar. 2007.
78.	Kenji Fujita, Akihiro Takita, Yoshio Hayasaki and Tetsuo Ichikawa : Data recording on a dental device using femtosecond laser processing with a surface detection system, 5th Internatinal Conference on Optics-photonics Design & Fabrication (ODF'06), 197-198, Nara, Dec. 2006.
79.	Keiji Fujita, Akihiro Takita, Tetsuo Ichikawa and Yoshio Hayasaki : Data recording on a dental device by use of a femtosecond laser for personal identification, The 9th International Conference on Optics Within Life Sciences (OWLS9), P1-2, Taipei, Nov. 2006.
80.	Daisuke Nagao, Katsuhiko Yoshimoto and Tetsuo Ichikawa : Compressing force induces Hsp25 in a mouse osteoblast-like cell line., IADR General Session & Exhibition, Brisbane, Jun. 2006.
81.	Daisuke Nagao, Katsuhiko Yoshimoto, Yoritoki Tomotake, Megumi Watanabe, Y Yoshijima and Tetsuo Ichikawa : Gene expression in a mouse osteoblast like cell line in response to compressing force., 11th International College of Prosthodontists, Crete, Greece, May 2005.
82.	Naoki Ohmura, Katsuhiko Hirota, Hiromichi Yumoto, Keiji Murakami, Hideo Kanitani, Toshiya Kashiwabara, Yoichiro Miyake and Tetsuo Ichikawa : Influence of denture plaque on the pharyngeal microflora, 80th General Session and Exhibition of the International Association for Dental Research, San Diego(USA), Mar. 2002.
83.	Kikuji Yamashita, Hiroyuki Morimoto, Masahide Nakao, Hidemi Ukai, Takao Hanawa, Tetsuo Ichikawa and Seiichiro Kitamura : Development of bio-integrated materials with intact extracellular matrix, The International Symposium on Bio-Integrated Materials and Tissue Engineering, 126-127, 2002.

Proceeding of Domestic Conference:

1.	Takaharu Goto, Takashi Matsuda, Takahiro Kishimoto and Tetsuo Ichikawa : 中山間地域在住高齢者におけるオーラルフレイル関連兆候と味覚識別能との関連, 特定非営利活動法人日本咀嚼学会第35回学術大会, Sep. 2024.
2.	OKU Yuri, Hideki Suito, Keiko Fujimoto, Kan Nagao and Tetsuo Ichikawa : 歯科診療に起因する歯科医師の職業性・騒音性難聴を予防する, 公益社団法人日本補綴歯科学会第133回学術大会, Jul. 2024.
3.	Takaharu Goto, 藤原真治, Takashi Matsuda, Takahiro Kishimoto and Tetsuo Ichikawa : 中山間地域在住高齢者における肥満とフレイル・口腔機能・離村との関連, 日本補綴歯科学会第133回学術大会, Jul. 2024.
4.	Takashi Matsuda, Takaharu Goto, Takahiro Kishimoto, Kan Nagao, Tetsuo Ichikawa and Masayo Okajima : 全部床義歯形状の口腔内スキャナによるデジタル化:顎堤形態とスキャンパスの影響, 日本補綴歯科学会第133回学術大会, Jul. 2024.
5.	Keiko Fujimoto, OKU Yuri, Hideki Suito, Kan Nagao and Tetsuo Ichikawa : 咀嚼能力における主観的評価と客観的評価の相違を食行動とフレイルから検討する, 一般社団法人日本老年歯科医学会第35回学術大会, Jun. 2024.
6.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake, Hiromichi Yumoto and Tetsuo Ichikawa : 高グルコース培養したヒト歯肉線維芽細胞に Candidalysin誘導性ROSがもたらす影響について, 四国歯学会第63回例会, Mar. 2024.
7.	天羽紗生, 武川香織, 藤田晶帆, 福本仁美, 清野方子, 佐原久美子, Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : 専門的口腔衛生管理によりインプラント周囲粘膜の違和感が改善した1症例, 四国歯学会第63回例会, Mar. 2024.
8.	Susumu Abe, Naito Kurio, Yoritoki Tomotake, Kumiko Kamada, Toshinori Okawa, Eiji Yamauchi, Youji Miyamoto and Tetsuo Ichikawa : A case of implant-supported overdenture for severe bone defect of the mandible and vascularized fibular graft by carcinoma of the lower gingiva, 日本口腔インプラント学会誌第43回関東・甲信越支部学術大会, 105, Feb. 2024.
9.	Yuki Iwawaki, 園井厚憲, 千葉厚子, 半田拓弥, 中津晋, Takaharu Goto, OKU Yuri, Keiko Fujimoto, Takahiro Kishimoto, Hideki Suito and Tetsuo Ichikawa : 泡沫状義歯洗浄剤OC441による義歯洗浄効果-主観的・客観的評価法による有効性の検討-, 日本義歯ケア学会第16回学術大会, Jan. 2024.
10.	Megumi Watanabe, Norikazu Minami, Yoritoki Tomotake and Tetsuo Ichikawa : 歯科用インプラント患者口腔内の溶出チタンの解析, 第43回日本口腔インプラント学会中国・四国支部学術大会, Oct. 2023.
11.	Hiromichi Kawano, Hideyuki Takano, 藤田晶帆, 福本仁美, 武川香織, Yasufumi Nishikawa, Yoritoki Tomotake and Tetsuo Ichikawa : 周術期口腔機能管理対象患者の口腔インプラントに対し適切に治療介入するための取り組み, 第43回中国・四国支部学術大会, Oct. 2023.
12.	MASUTOMI Yukako, Takaharu Goto and Tetsuo Ichikawa : 青年期における呼吸様式，顎顔面形態および口腔機能との関連, 特定非営利活動法人日本咀嚼学会第34回学術大会, Oct. 2023.
13.	Takaharu Goto, MASUTOMI Yukako and Tetsuo Ichikawa : 青年期における主機能部位の分布と姿勢，顎顔面形態との関連, 第33回日本全身咬合学会学術大会, Oct. 2023.
14.	Takaharu Goto and Tetsuo Ichikawa : サルコペニア肥満と口腔機能は関連するか, 第33回日本全身咬合学会学術大会, Oct. 2023.
15.	Yuichi Ishida, 小西晴奈, Yuki Iwawaki, Yoritoki Tomotake and Tetsuo Ichikawa : Z世代と呼ばれる歯学部学生および研修歯科医に対する口腔インプラント治療に関するアンケート調査, 公益社団法人日本口腔インプラント学会, Sep. 2023.
16.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : 高グルコース負荷がヒト歯肉線維芽細胞における Candidalysin誘導性炎症関連因子の産生に与える影響, 第53回口腔インプラント学会学術大会, Sep. 2023.
17.	Takahiro Kishimoto, Takaharu Goto, 堀内政信, Kazutomo Yagi and Tetsuo Ichikawa : 口腔周囲への感覚刺激が脳血流量に及ぼす影響, 令和5年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Sep. 2023.
18.	Mio Kitamura, Yasuhiko Shirayama, Takaharu Goto, Tetsuo Ichikawa and 藤原真治 : 中山間地域に居住する高齢者の生活行為としての畑作業と身体・認知機能との関連, 第6回徳島県地域包括ケアシステム学会学術集会, Aug. 2023.
19.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake, Hiromichi Yumoto and Tetsuo Ichikawa : ヒト歯肉線維芽細胞におけるCandidalysin誘導性ROSの産生性とその作用について, 四国歯学会第62回例会, Jul. 2023.
20.	Mio Kitamura, Yasuhiko Shirayama, Takaharu Goto, Shizuko Yanagisawa and Tetsuo Ichikawa : 後期高齢者における健康無関心者の実態把握とナッジ理論を用いた健康意識変容の検討, 第65回日本老年医学会学術集会, Jun. 2023.
21.	Kan Nagao, Keiko Fujimoto, Hideki Suito, Takaharu Goto, Tetsuo Ichikawa and Megumi Watanabe : 嚥下機能を考慮した全部床義歯口蓋形態の形成, 日本老年歯科医学会第34回学術大会, Jun. 2023.
22.	Hideki Suito, Naoki Maeda, Ryosuke Kasai, 富永賢, Masafumi Amano, Norikazu Minami, Keiko Fujimoto, Kan Nagao, Tetsuo Ichikawa and Hidehiko Hosoki : 異なる材料による歯冠補綴物のアーチファクト定量評価, 日本歯科放射線学会第63回学術大会, May 2023.
23.	Takaharu Goto, Takahiro Kishimoto, Keiko Fujimoto, 田上義弘 and Tetsuo Ichikawa : におい強度に着目した咀嚼能率，唾液分泌量関連因子の同時推定法の検討, 日本補綴歯科学会第132回学術大会, May 2023.
24.	Yuki Iwawaki, 園井厚憲, 千葉厚子, 半田拓弥, 中津晋, Takaharu Goto, Keiko Fujimoto, Takahiro Kishimoto, Takashi Matsuda, Hideki Suito, HARUNA Konishi, Kan Nagao and Tetsuo Ichikawa : Efficacy of foam type denture cleanser OC441 on partial denture cleaning, 日本補綴歯科学会第132回学術大会, May 2023.
25.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake, Hiromichi Yumoto and Tetsuo Ichikawa : 高グルコース負荷を行ったヒト歯肉線維芽細胞における Candidalysinの作用, 四国歯学会第 61回例会, Mar. 2023.
26.	Tetsuo Ichikawa : メタルクラスプデンチャーからノンクラスプ，ノンメタルクラスプへ, 第16回日本義歯ケア学会学術大会, Jan. 2023.
27.	Adityakrisna Yoshi Putra Wigianto, Takaharu Goto, Yuki Iwawaki and Tetsuo Ichikawa : Germicidal efficacy of portable UV-C light against Candida albicans biofilm on PMMA and SARS-CoV-2, 日本義歯ケア学会第15回学術大会, Jan. 2023.
28.	Tetsuo Ichikawa : 高齢者の食べる力, 日本咀嚼学会学術講演会, Dec. 2022.
29.	Norikazu Minami, Yuichi Ishida, Megumi Watanabe, Yuki Iwawaki and Tetsuo Ichikawa : インプラント治療後に顎欠損とインプラント体の破損・脱落が生じた患者に対し，ロケーターを用いた可撤式補綴装置で対応した症例, 日本口腔インプラント学会第42回中国四国支部学術大会, Nov. 2022.
30.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント補綴の隣接欠損部に対して延長ポンティック形態を付与したジルコニア製べニアを用いた1症例, 第42回公益社団法人日本口腔インプラント学会中国・四国支部総会・学術大会, Nov. 2022.
31.	Norikazu Minami, Yuichi Ishida, Megumi Watanabe, Yuki Iwawaki and Tetsuo Ichikawa : --, 日本口腔インプラント学会第42回中国四国支部学術大会, Nov. 2022.
32.	Tetsuo Ichikawa : 全部床義歯に与える咬合何を見て何を判断するのか, 日本顎咬合学会咬合フォーラム, Oct. 2022.
33.	Hideki Suito, Naoki Maeda, Ryosuke Kasai, Tadashi Inoue, Masafumi Amano, Keiko Fujimoto, Tetsuo Ichikawa and Hidehiko Hosoki : ジルコニアインプラントの金属アーチファクト定量評価, 日本歯科放射線学会第3回秋季学術大会, Oct. 2022.
34.	MASUTOMI Yukako, Takaharu Goto, Takahiro Kishimoto and Tetsuo Ichikawa : 青年期における呼吸状態と口腔機能との関連, 特定非営利活動法人日本咀嚼学会第33回学術大会, Oct. 2022.
35.	Yuki Iwawaki, Norikazu Minami, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : 表面処理されたチタン上における骨芽細胞様細胞のmicroRNA発現と細胞増殖への影響, 第52回公益社団法人日本口腔インプラント学会学術大会, Sep. 2022.
36.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : Investigation of the involvement of Candida albicans on pathogenesis of peri-implantitis, 第52回口腔インプラント学会学術大会, Sep. 2022.
37.	Tetsuo Ichikawa : 磁性アタッチメントー基本的な考え方と臨床術式ー, 日本補綴歯科学会中国四国支部学会, Aug. 2022.
38.	Tetsuo Ichikawa : インプラント治療において，補綴歯科は何を見ているのか, 日本顎顔面インプラント学会, Aug. 2022.
39.	後藤匡紀, Takaharu Goto, Takashi Matsuda, Takahiro Kishimoto, Adityakrisna Putra Yoshi Wigianto, Norikazu Minami, Yuichi Ishida, Kouhei Kamoi, Tetsuo Ichikawa and 今井守夫 : CAD/CAMを用いた臼歯部人工歯咬合面再形成法の精度に関する検討, 日本補綴歯科学会令和4年度中国四国支部学術大会, Aug. 2022.
40.	Keiko Fujimoto, Hideki Suito, Kan Nagao, Tetsuo Ichikawa and Syusai Sato : 歯科医師の診療および技工における感染意識の変化 COVID-19蔓延の影響, (公社)日本補綴歯科学会第131回学術大会, Jul. 2022.
41.	Adityakrisna Yoshi Putra Wigianto, Yuki Iwawaki, Takaharu Goto, Yuichi Ishida and Tetsuo Ichikawa : カンジダのバイオフィルム形成を阻害する光反応型 MPC コーティング材の効果と耐久性, 令和4年度公益社団法人日本補綴歯科学会第131回記念学術大会, Jul. 2022.
42.	Yasufumi Nishikawa, Hiromichi Kawano, Yoritoki Tomotake, Hiromichi Yumoto and Tetsuo Ichikawa : Candidalysinがインプラント周囲炎の病態形成に与える影響について, 四国歯学会第60回例会, Jun. 2022.
43.	田上義弘, Keiko Fujimoto, Hideki Suito, Takahiro Kishimoto, Yuki Iwawaki, Takaharu Goto, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : 舌超音波画像の輝度は，身体的フレイルと関係する, 一般社団法人日本老年歯科医学会第33回学術大会, Jun. 2022.
44.	田上義弘, 藤本けい子, 水頭英樹, 岸本卓大, Yuki Iwawaki, Takaharu Goto, 渡邉恵, Kan Nagao and Tetsuo Ichikawa : 舌超音波画像の輝度は身体的フレイルと関係する, 日本老年歯科医学会第33回学術大会, Jun. 2022.
45.	Adityakrisna Yoshi Putra Wigianto, Yuki Iwawaki, Takaharu Goto and Tetsuo Ichikawa : 義歯床用レジン上でのC.albicansのバイオフィルム形成に対するMPCコーティングの有効性, 日本義歯ケア学会第14回学術大会, Mar. 2022.
46.	Yoritoki Tomotake, Hiromichi Kawano, Yasufumi Nishikawa and Tetsuo Ichikawa : • 当大学病院口腔インプラントセンターにおける新来患者の臨床統計, 徳島歯科医学大会, Feb. 2022.
47.	福本仁美, 武川香織, Yasufumi Nishikawa, 湊晶帆, 鶴田真生, Hiromichi Kawano, Yoritoki Tomotake and Tetsuo Ichikawa : 臼歯部インプラント上部構造に対する各種歯ブラシの歯垢除去効果について, 第51回日本口腔インプラント学会学術大会, Dec. 2021.
48.	Hiromichi Kawano, 富永賢, Yasufumi Nishikawa, Yoritoki Tomotake and Tetsuo Ichikawa : 固定性から可徹性へのインプラント上部構造の補綴的介入による心理的・機能的変化, 第51回日本口腔インプラント学会学術大会, Dec. 2021.
49.	Megumi Watanabe, Norikazu Minami, Yuki Iwawaki, Yuichi Ishida and Tetsuo Ichikawa : セマフォリン3Aはチタン上で骨芽細胞の分化を促進する, 第51回公益社団法人日本口腔インプラント学会記念学術大会, Vol.0, No.0, 00, Dec. 2021.
50.	Lipei Liu, Megumi Watanabe, Mohammad Fadyl Yunizar and Tetsuo Ichikawa : Semaphorin3A: A novel potential target for prevention and treatment of nickel allergy, 第50回日本免疫学会学術集会, Dec. 2021.
51.	Tetsuo Ichikawa : 口腔機能改善と全身への影響をどう捉えるか, The Journal of the Japanese Academy of Occulusion and Health, Oct. 2021.
52.	Takaharu Goto and Tetsuo Ichikawa : 歯根膜触・圧覚の感受性が咬合力と前頭前野の活動に与える影響, 日本全身咬合学会第31回学術大会, Oct. 2021.
53.	Tetsuo Ichikawa, Takaharu Goto, Takahiro Kishimoto, Keiko Fujimoto, Norikazu Minami, Yuichi Ishida, Kouhei Kamoi, 市場裕康 and 萬好哲也 : デジタル技術を応用した``Two-piece''人工歯型咬合面再形成法-製作精度-, 令和3年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Aug. 2021.
54.	Yuichi Ishida, Kouhei Kamoi, 小西晴奈, Takashi Matsuda, Wigianto Yoshi Putra Adityakrisna and Tetsuo Ichikawa : PEEK製クラスプのデザインの最適化に関する検討レスト付き二腕鉤の維持力に関して, 令和3年度公益社団法人日本補綴歯科学会中国四国支部学術大会(Web開催), Vol.0, No.0, 0, Aug. 2021.
55.	Lipei Liu, Megumi Watanabe, Norikazu Minami, Yunizar Fadyl Mohammad and Tetsuo Ichikawa : 金属アレルギー発症過程におけるセマフォリン 3A の役割, (公社)日本補綴歯科学会第130回記念学術大会, Jun. 2021.
56.	Takaharu Goto, 藤原真治, Takashi Matsuda and Tetsuo Ichikawa : 過疎・高齢化が進む中山間地域在住高齢者における口腔機能とフレイルとの関連, 令和3年度公益社団法人日本補綴歯科学会第130回記念学術大会, Jun. 2021.
57.	Kan Nagao, Keiko Fujimoto, Takaharu Goto and Tetsuo Ichikawa : 2種類の硬さの粘膜調整材を用いて舌接触補助床の口蓋形成を行った症例, 日本老年歯科医学会第32回学術大会, Jun. 2021.
58.	Kohsuke Yanazawa, Kan Nagao, Keiko Fujimoto, Yoshihiro Tagami, Megumi Watanabe and Tetsuo Ichikawa : 舌接触補助床の口蓋形成方法の確立, 四国歯学会第57回例会, Mar. 2021.
59.	Tetsuo Ichikawa, Takaharu Goto, Takahiro Kishimoto, Keiko Fujimoto, 南憲一 and Kouhei Kamoi : デジタル技術を応用した人工歯咬合面再形成法, 日本義歯ケア学会第13回学術大会, Feb. 2021.
60.	Tetsuo Ichikawa : 歯と口と健康のための体制作り:歯学における学術活動および国民への周知活動の方向性 (日本学術会議歯学委員会・日本歯学系学会協議会主催), Nov. 2020.
61.	Shizuko Yanagisawa, Takaharu Goto, Yasuhiko Shirayama and Tetsuo Ichikawa : 口腔機能管理における施設介護職員の他職種への信頼, 日本老年歯科医学会第31回学術大会, Nov. 2020.
62.	Yuki Iwawaki, Takaharu Goto, Takahiro Kishimoto, Takashi Matsuda, Keiko Fujimoto, Kan Nagao, 吉村賢治, 江下義之, 矢納義高 and Tetsuo Ichikawa : イソデシルガラクトシド配合泡沫状製剤の高齢者における有効性の評価, 一般社団法人日本老年歯科医学会第31回学術大会, Nov. 2020.
63.	Keiko Fujimoto, Takaharu Goto, Takahiro Kishimoto, Yuki Iwawaki, 水頭英樹, Kan Nagao and Tetsuo Ichikawa : ルシフェラーゼアッセイによる口腔不潔の定量評価, 一般社団法人日本老年歯科医学会第31回学術大会, Nov. 2020.
64.	Takaharu Goto, Takashi Matsuda and Tetsuo Ichikawa : 中山間地域在住高齢者の食品摂取，高次生活機能に関連する要因の検討, 特定非営利活動法人日本咀嚼学会第31回学術大会, Oct. 2020.
65.	Yuichi Ishida, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : フューチャー・デザイン手法を用いた終末期のインプラント治療への対応の検討, 第50回公益社団法人日本口腔インプラント学会記念学術大会, Sep. 2020.
66.	Yoritoki Tomotake, Yuichi Ishida, Susumu Abe, Megumi Watanabe, 富永賢, Yoshizo Matsuka, Youji Miyamoto and Tetsuo Ichikawa : 徳島大学病院口腔インプラント診療部門における臨床と研究への取り組み, Journal of Japanese Society of Oral Implantology, Sep. 2020.
67.	Yoshihiro Tagami, Takaharu Goto, Keiko Fujimoto, Kan Nagao and Tetsuo Ichikawa : 超音波画像における輝度を用いた舌筋の評価, 令和2年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Aug. 2020.
68.	Takaharu Goto, 南憲一, Takashi Matsuda and Tetsuo Ichikawa : 口腔内スキャナと3次元プリンターを用いた開口障害および小口症を伴う下顎歯肉癌術後患者に対する無歯顎補綴治療症例, 令和2年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Aug. 2020.
69.	Kan Nagao and Tetsuo Ichikawa : 舌接触補助床と機能訓練で脳梗塞患者の口腔機能を回復した症例, 日本補綴歯科学会第129回学術大会, Jun. 2020.
70.	Hideki Suito, Keiko Fujimoto, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : 歯科材料研磨時の微粒子の飛散測定:口腔外バキュームの有効性の検討, 令和2年度公益社団法人日本補綴歯科学会第129回学術大会, Jun. 2020.
71.	Tetsuo Ichikawa : Zest for eating and preemptive medicine in the elderly, Annals of Japan Prosthodontic Society, Vol.13, No.2, 105-108, Jun. 2020. (Summary) <p>In prosthetic dentistry, the concept of prevention of aggravation and preemptive medicine is important, and preventive managements depending on the condition of each patient are required so as not to cause a high-risk oral condition that makes the prosthodontic treatment difficult. We need clinical indicators that allow prosthodontists to predict such risks, and at the same time, it is also important to set clinical indicators that make general medical staffs and patients themselves realize the situation.</p><p>In our prosthodontic field, we should understand that "zest for eating" is a total ability, considering not only oral factors but also eating behavior and eating habit factors, as well as environmental factors and individual factors. Ultimately, clinical indicators of "zest for eating" and final outcomes in the patients need to be established and made known to the public and healthcare professionals.</p> (Keyword) Zest for eating / Preemptive medicine / Clinical indicator / Medical collaboration / Elderly (Link to Publication Site) ● Publication site (DOI): 10.2186/ajps.13.105 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390287849572688128 ● Search Scopus @ Elsevier (DOI): 10.2186/ajps.13.105 (DOI: 10.2186/ajps.13.105, CiNii: 1390287849572688128)
72.	Keiko Fujimoto, Takaharu Goto, Yuki Iwawaki, Takahiro Kishimoto, 南憲一 and Tetsuo Ichikawa : ATPふき取り検査による口腔不潔の客観的評価, 日本義歯ケア学会第12回学術大会, Feb. 2020.
73.	Yuichi Ishida, Norikazu Minami, Yuki Iwawaki, Megumi Watanabe and Tetsuo Ichikawa : 木管楽器の演奏に配慮してインプラント治療を行った1症例, 四国歯学会第56回例会・徳島県歯科医学大会, Feb. 2020.
74.	岡本元太, Lipei Liu, Megumi Watanabe, Kan Nagao and Tetsuo Ichikawa : 歯科用金属が細胞に与える影響, 徳島県歯科医学大会, Feb. 2020.
75.	Tetsuo Ichikawa, Takahiro Kishimoto and Takaharu Goto : 臼歯で噛むことの意義:前頭前野における脳活動に関する研究から, 日本全身咬合学会第29回学術大会, Nov. 2019.
76.	深田有希, Megumi Watanabe, Yuichi Ishida and Tetsuo Ichikawa : 低周波パルス磁場が上皮角化細胞の遊走に与える影響, 第29回日本磁気歯科学会学術大会, Nov. 2019.
77.	Takaharu Goto, Takahiro Kishimoto, Takashi Matsuda and Tetsuo Ichikawa : 口腔機能における前頭前野の活動:振動，味覚刺激の影響, 日本顎口腔機能学会第63回学術大会, Oct. 2019.
78.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : タッピング運動が前頭前野の脳血流量に与える影響, 特定非営利活動法人日本咀嚼学会第30回記念学術大会, Oct. 2019.
79.	Takaharu Goto, Takahiro Kishimoto, Yoshihiro Tagami and Tetsuo Ichikawa : 唾液分泌量計測の信頼性に関する研究, 特定非営利活動法人日本咀嚼学会第30回記念学術大会, Oct. 2019.
80.	Yuki Iwawaki, Takaharu Goto, Norikazu Minami, Yoritoki Tomotake and Tetsuo Ichikawa : 異なる表面性状を持つチタン上での骨芽細胞におけるmicroRNA発現の同定, 第49回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2019.
81.	Yoshihiro Tagami, Takaharu Goto, Keiko Fujimoto, Yuki Iwawaki, 石田雄一, Kan Nagao and Tetsuo Ichikawa : フレイル評価における音声評価の意義, 令和元年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Sep. 2019.
82.	Hideki Suito, 田上義弘, Keiko Fujimoto, Kan Nagao and Tetsuo Ichikawa : 介護老人福祉施設における誤嚥性肺炎発症と歯科的状況の関連, 2019年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Aug. 2019.
83.	Lipei Liu, Norikazu Minami, Megumi Watanabe and Tetsuo Ichikawa : ニッケルアレルギーにおけるセマフォリン3Aの役割, 第38回分子病理研究会, Jul. 2019.
84.	Tetsuo Ichikawa, Takaharu Goto, Takashi Matsuda, Keiko Fujimoto, Kan Nagao and Yasuhiko Shirayama : 地域の看取りと口腔健康管理:限界集落で口腔健康管理はされているか, 令和元年度一般社団法人日本老年歯科医学会第30回学術大会, Jun. 2019.
85.	Norikazu Minami, Liu Lipei, Megumi Watanabe and Tetsuo Ichikawa : Role of Semaphorin 7A during the effector phase of metal allergy development, 公益社団法人日本補綴歯科学会第128回学術大会, May 2019.
86.	Takahiro Kishimoto, Takaharu Goto, Yuki Iwawaki, Keiko Fujimoto and Tetsuo Ichikawa : においセンサによる唾液流量推定法の検討, 平成31年度公益社団法人日本補綴歯科学会第128回学術大会, May 2019.
87.	Kurahashi Kosuke, Takashi Matsuda, Yuichi Ishida and Tetsuo Ichikawa : Effect of polishing treatments on surface roughness of polyethertherketone, 日本補綴歯科学会第128回学術大会, May 2019.
88.	Yuichi Ishida, Takashi Matsuda, Kohsuke Kurahashi and Tetsuo Ichikawa : 全部床義歯学実習における咬合様式に関するアンケート調査, 日本補綴歯科学会誌11巻特別号, May 2019. (Keyword) 質問紙法 / 総義歯 / occlusion / 歯学大学教育
89.	Kohsuke Kurahashi, Takashi Matsuda, Yuichi Ishida and Tetsuo Ichikawa : 研磨方法がポリエーテルエーテルケトンの表面粗さに及ぼす影響, 日本補綴歯科学会誌11巻特別号, May 2019. (Keyword) Ketones / Polyethylene Glycols / 歯科研磨 / 表面特性
90.	Takahiro Kurabayashi, Kan Nagao, Keiko Fujimoto, Megumi Watanabe, Takaharu Goto and Tetsuo Ichikawa : 高齢者歯科関連キーワードの変遷 ―学術論文検索とインターネット検索による調査―, 四国歯学会第54回例会, Mar. 2019.
91.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 多波長植物専用LED照射装置を用いた完全制御型水耕栽培システム, LED総合フォーラム2019 in 徳島, Feb. 2019.
92.	Yuki Iwawaki, Keiko Fujimoto, Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : 義歯安定剤が呼気中アルコール濃度へ与える影響の評価, 日本義歯ケア学会第11回学術大会, Feb. 2019.
93.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : 咬合力の維持タスクと前頭前野の脳血流量:開口量と前歯，臼歯の違いによる影響, 第28回日本全身咬合学会学術大会, Nov. 2018.
94.	田口侑子, Hiromichi Kawano, 湊晶帆, 鶴田真生, 清野方子, 荒井安希, Yoritoki Tomotake and Tetsuo Ichikawa : Usefulness of the salivary multi test in the preoperative examination of the oral implant treatment., 日本口腔インプラント学会第38回中国四国支部学術大会, Nov. 2018.
95.	南憲一, Yuichi Ishida, Megumi Watanabe, Yuki Iwawaki and Tetsuo Ichikawa : 下顎無歯顎症例に対してデジタル複製義歯製作法を用いた磁性ミニインプラントオーバーデンチャーにより対応した1症例, 日本口腔インプラント学会第38回中国・四国支部学術大会, Nov. 2018.
96.	田上義弘, Takaharu Goto, Tsukasa Hihara, Atsuko Nakamichi and Tetsuo Ichikawa : 高齢者における「やせ」と食行動との関連について, 特定非営利活動法人日本咀嚼学会第29回総会・学術大会, Oct. 2018.
97.	村岡佑紀, Takaharu Goto, Takahiro Kishimoto and Tetsuo Ichikawa : 咀嚼刺激が顔側面部近赤外光計測装置における血流量に与える影響, 特定非営利活動法人日本咀嚼学会第29回総会・学術大会, Oct. 2018.
98.	Tsukasa Hihara, 小西洋子, 小野寺亜也子, 中西真希, 立石友子, Takaharu Goto and Tetsuo Ichikawa : 身体的フレイル，オーラルフレイル関連徴候に関する高齢者の意識調査 ―「20歳代と比べてどうですか」ー, 第2回徳島県地域包括ケアシステム学会学術集会, Aug. 2018.
99.	Keiko Fujimoto, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : 舌の厚み測定の臨床的意義の検討, 平成30年度一般社団法人日本老年歯科医学会第29回学術大会, Jun. 2018.
100.	Tsukasa Hihara, Takaharu Goto, Takahiro Kishimoto, Shizuko Yanagisawa, Atsuko Nakamichi and Tetsuo Ichikawa : 身体的フレイルに影響を及ぼすオーラルフレイル要因の共分散構造分析, 平成30年度一般社団法人日本老年歯科医学会第29回学術大会, Jun. 2018.
101.	Takahiro Kishimoto, Takaharu Goto and Tetsuo Ichikawa : マグニチュード推定法を用いた口腔内の感受性評価と脳血流量との関連, 平成30年度公益社団法人日本補綴歯科学会第127回学術大会, Jun. 2018.
102.	Gantumur Chimeddulam, Keisuke Nishigawa, Yoshihito Naitou, Junhel Dalanon, Afroz Shaista, 葉山莉香, Masamitsu Ohshima, Yoritoki Tomotake, Tetsuo Ichikawa and Yoshizo Matsuka : インプラントシステムの違いによるインプラント周囲骨吸収に関する長期放射線学的検討, The Journal of the Japan Prosthodontic Society, Jun. 2018.
103.	村岡佑紀, Takaharu Goto, Yuki Iwawaki, Takahiro Kishimoto and Tetsuo Ichikawa : 口腔内の清潔度と口腔機能との関連∼若年者と高齢者の比較∼, 四国歯学会第52回例会, Mar. 2018.
104.	Tetsuo Ichikawa : デジタル化時代の歯科技工と歯科技工士の将来 -歯科補綴学の観点から-, 日本歯学系連絡協議会シンポジウム, Mar. 2018.
105.	Eiichi Honda, Teruaki Ito, Yohsuke Kinouchi, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 一般照明および植物育成照明に応用できる新しいLED照明方法の開発, LED総合フォーラム2018 in 徳島, Feb. 2018.
106.	Yuki Iwawaki, Takaharu Goto, 藤本けい子, Hideki Suito and Tetsuo Ichikawa : 高齢者における口腔機能と口腔内清浄度との関連, 日本義歯ケア学会第10回学術大会, Jan. 2018.
107.	荒井安希, 清野方子, Yoritoki Tomotake, 和田匡史, 高瀬維彦, Takaharu Goto, Megumi Watanabe and Tetsuo Ichikawa : 臼歯部インプラント補綴のセルフクリーニングに関する研究, 公益社団法人日本口腔インプラント学会第37回中国・四国支部学術大会, Nov. 2017.
108.	Ch. Gantumur, Keisuke Nishigawa, R. Hayama, Toyoko Tajima, Yoritoki Tomotake, Yoshihito Naitou, Tetsuo Ichikawa and Yoshizo Matsuka : Etiological investigation of the marginal bone loss on the peri-implant area: a retrospective cohort study, Tokushima University Bioscience Retreat, Sep. 2017.
109.	Megumi Watanabe, Norikazu Minami, 高瀬維彦, Yoritoki Tomotake and Tetsuo Ichikawa : The effect of ELF pulsed magnetic fields on osteoblast differentiation via MAP kinase pathways., 第47回公益社団法人日本口腔インプラント学会学術大会, Sep. 2017.
110.	Takaharu Goto, Takahiro Kishimoto, 檜原司, 中道敦子 and Tetsuo Ichikawa : 一口量とフレイル・オーラルフレイル関連兆候との関係∼主観的評価からの検討∼, 特定非営利活動法人日本咀嚼学会第28回総会・学術大会, Sep. 2017.
111.	Yoritoki Tomotake, 荒井安希, 清野方子, 内藤禎人, 田島登誉子, Takaharu Goto, 石田雄一 and Tetsuo Ichikawa : 歯磨剤に配合された顆粒成分のインプラント周囲溝への侵入性の調査, 第47回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2017.
112.	Kazutomo Yagi, AA Lowe, Tetsuo Ichikawa and FR Almeida : Respiratory events and postural movements of the mandible in phase with respiratory effort during sleep, 日本補綴歯科学会中国・四国支部, Aug. 2017.
113.	Takashi Matsuda, 倉橋宏輔, 田上義弘, 石田雄一, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : デジタル技術を用いた全部床義歯治療の効率化-全部床義歯形状のデジタル化の精度検討-, 平成29年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Aug. 2017.
114.	田上義弘, Takaharu Goto, 石田雄一, Takahiro Kishimoto, Hideki Suito, Takashi Matsuda and Tetsuo Ichikawa : 天然歯と連結したインプラント上部構造に関する力学的考察, 平成29年度公益社団法人日本補綴歯科学会中国四国支部学術大会, Aug. 2017.
115.	Takaharu Goto, Takahiro Kishimoto, 檜原司, Takashi Matsuda, 渡邉恵, Kan Nagao and Tetsuo Ichikawa : オーラルフレイル関連兆候と食行動との関係:噛むことの重要性, 日本補綴歯科学会第126回学術大会, Jul. 2017.
116.	Tetsuo Ichikawa : 歯科の基盤を支え，創る補綴の矜持理事長就任にあたって, 日本補綴歯科学会学術大会, Jul. 2017.
117.	Megumi Watanabe and Tetsuo Ichikawa : Analysis of Plexin-Semaphorin Interaction in Keratinocytes and Dendritic Cells Stimulated with Nickel, 日本補綴歯科学会第126回学術大会, Jun. 2017.
118.	Keiko Fujimoto, Tsuyoshi Honda, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : 咀嚼の主観的評価に関わる客観的指標の検討, 日本老年歯科医学会第28回学術大会, Jun. 2017.
119.	Hideki Suito, Seiko Hongama, 藤本けい子, Kan Nagao and Tetsuo Ichikawa : 脳血管疾患と口腔内状態・オーラルリテラシーとの関連性, 日本老年歯科医学会第28会学術大会, Jun. 2017.
120.	Takaharu Goto, Takahiro Kishimoto, 檜原司, Shizuko Yanagisawa, Atsuko Nakamichi and Tetsuo Ichikawa : アンケートを用いたフレイル・オーラルフレイル関連兆候の検討, 日本老年歯科医学会第28回学術大会, Jun. 2017.
121.	Takaharu Goto, Takahiro Kishimoto, Takashi Matsuda and Tetsuo Ichikawa : 健常若年者における歯の圧感受性と前頭前野の血流量との関連, 日本顎口腔機能学会第58回学術大会, Apr. 2017.
122.	Hideki Suito, 藤本けい子, 南憲一, Tsuyoshi Honda, Takaharu Goto and Tetsuo Ichikawa : 義歯安定剤の使用は嚥下造影検査食の物性に影響するか, 日本義歯ケア学会第9回学術大会, Feb. 2017.
123.	Yuki Iwawaki, 倉橋浩輔, 檜垣宜明, Takashi Matsuda, Takaharu Goto and Tetsuo Ichikawa : 洗浄水の温度の違いによる義歯洗浄効果の検討, 日本義歯ケア学会第9回学術大会, Feb. 2017.
124.	Takahiro Kishimoto, Takaharu Goto, 檜垣宜明, 檜原司, 中道敦子 and Tetsuo Ichikawa : オーラルフレイルと食行動に関する実態調査, 特定非営利活動法人日本咀嚼学会第27回総会・学術大会, Nov. 2016.
125.	檜垣宜明, Takaharu Goto, Yuki Iwawaki, 石田雄一, 渡邉恵, Yoritoki Tomotake and Tetsuo Ichikawa : 咬合力維持における前頭前野の活動と感覚統合:インプラントと天然歯の比較, 第46回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2016.
126.	友竹偉側, Toyoko Tajima, Yoshihito Naitou, Yuichi Ishida, Mayu Miyagi, Susumu Abe, Yoshizo Matsuka and Tetsuo Ichikawa : インプラント治療前後の口腔関連QOLの評価:形態的困難度の影響, Journal of Japanese Society of Oral Implantology, Sep. 2016.
127.	Tsuyoshi Honda, 藤本けい子, 馬場拓朗, 南憲一, 檜垣宜明, Kan Nagao, Fumiaki Kawano, Syusai Sato and Tetsuo Ichikawa : 口蓋形態と咬合高径が食塊形成能に及ぼす影響, 平成28年度日本補綴歯科学会九州支部，中国・四国支部合同学術大会, Sep. 2016.
128.	檜原司, Takaharu Goto, 今井守夫, 多田望, 萬好哲也, 井上三四郎, 薦田淳司, 佐藤修斎, 堀内政信, 宮本雅司, 岡島雅代 and Tetsuo Ichikawa : オーラルフレイルとフレイルに関するアンケート調査:実態の把握, 平成28年度公益社団法人日本補綴歯科学会九州支部,中国・四国支部合同学術大会, Sep. 2016.
129.	Yuki Iwawaki, Takaharu Goto, 渡邉恵, Yoritoki Tomotake and Tetsuo Ichikawa : マウス骨芽細胞におけるストレス誘導性microRNAの解析, 平成28年度公益社団法人日本補綴歯科学会九州支部,中国・四国支部合同学術大会, Sep. 2016.
130.	倉橋宏輔, Takashi Matsuda, Hideki Suito, Takaharu Goto, 石田雄一, 本釜聖子, 薦田淳司 and Tetsuo Ichikawa : Additive Manufacturingを用いた印象用複製義歯の製作とその評価, 平成28年度公益社団法人日本補綴歯科学会九州支部,中国・四国支部合同学術大会, Sep. 2016.
131.	Gantumur Chimeddulam, Keisuke Nishigawa, 葉山莉香, Toyoko Tajima, Yoritoki Tomotake, Yoshihito Naitou, Tetsuo Ichikawa and Yoshizo Matsuka : 歯科インプラント周囲の骨吸収に関する臨床疫学研究, The Journal of the Japan Prosthodontic Society, Jul. 2016.
132.	檜垣宜明, Takaharu Goto and Tetsuo Ichikawa : 歯根膜からの感覚情報が前頭前野の活動に与える影響, 平成28年度公益社団法人日本補綴歯科学会第125回学術大会, Jul. 2016.
133.	Takashi Matsuda, 倉橋宏輔, Yuki Iwawaki, Takaharu Goto, 柏原稔也, Kan Nagao, Tetsuo Ichikawa and 市場裕康 : デジタル技術を用いた全部床義歯治療の効率化:咬合圧印象用トレーによる印象採得の評価, 平成28年度公益社団法人日本補綴歯科学会第125回学術大会, Jul. 2016.
134.	Takaharu Goto, 檜垣宜明, 石田雄一, 渡邉恵, Kan Nagao and Tetsuo Ichikawa : 口腔内のにおい強度に着目した新しい咀嚼能率測定方法の開発, 平成28年度公益社団法人日本補綴歯科学会第125回学術大会, Jul. 2016.
135.	倉橋宏輔, Takashi Matsuda, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : 歯科訪問診療でも対応可能なハンディスキャナーを用いた複製義歯製作法, 一般社団法人日本老年歯科医学会第27回総会・学術大会, Jun. 2016.
136.	馬場拓朗, 藤本けい子, 本田剛, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : オトガイ舌骨筋に着目した口腔機能低下予測因子の検討, 一般社団法人日本老年歯科医学会第27回総会・学術大会, Jun. 2016.
137.	Kazumitsu Sekine, Yoshihito Naitou, Tetsuo Ichikawa, Kikuji Yamashita and Kenichi Hamada : Surface modification of titanium scaffold for applying cell growth promotion, 第55回日本生体医工学会大会, Apr. 2016.
138.	Hideki Suito, Takaharu Goto, Toshiya Kashiwabara and Tetsuo Ichikawa : 歯科介入による入院義歯患者の口腔環境の変化, 日本義歯ケア学会第8回学術大会, Jan. 2016.
139.	Takaharu Goto, 藤本けい子, 水藤英樹, 南憲一, 柏原捻也, 鴨居浩平 and Tetsuo Ichikawa : 義歯への情報書き込みに関する検討, 日本義歯ケア学会第8回学術大会, Jan. 2016.
140.	Tetsuo Ichikawa : ウサギ頭蓋骨におけるシンバスタチン封入徐放型マイクロスフェアの骨形成促進効果公益社団法人日本口腔インプラント学会第34回中国・四国支部総会学術大会 2014.11.29 山口内藤禎人，神保良，田島登誉子，市川哲雄，友竹偉則, Nov. 2015.
141.	Yuichi Ishida, Kan Nagao and Tetsuo Ichikawa : スプリントの磁気治療器としての応用, 第25回日本磁気歯科学会学術大会, Nov. 2015.
142.	Kazumitsu Sekine, Jiyon Be, Yoshihito Naitou, Tetsuo Ichikawa and Kenichi Hamada : 早期内膜新生を狙ったチタン多孔質スキャフォールドの作成と評価, 第37回日本バイオマテリアル学会大会, Nov. 2015.
143.	馬場拓朗, Hirohiko Okamura, Yang Di, Kan Nagao, Tatsuji Haneji and Tetsuo Ichikawa : ラット臼歯部咬合支持の喪失がオトガイ舌骨筋および咬筋の筋組成へ与える影響, 日本解剖学会第70回中国・四国支部学術集会, Oct. 2015.
144.	檜垣宜明, Takaharu Goto, 中村詩織, 中道敦子 and Tetsuo Ichikawa : 咀嚼回数と食塊物性との関連について, 特定非営利活動法人日本咀嚼学会第26回総会・学術大会, Sep. 2015.
145.	中村詩織, Takaharu Goto, 檜垣宜明, 中道敦子 and Tetsuo Ichikawa : 一般青年の食行動と健康関連QOLおよび口腔関連QOLとの関連性の検討, 特定非営利活動法人日本咀嚼学会第26回総会・学術大会, Sep. 2015.
146.	Takaharu Goto, 檜垣宜明, 中村詩織 and Tetsuo Ichikawa : においセンサを用いた咀嚼能率測定方法の検討, 特定非営利活動法人日本咀嚼学会第26回総会・学術大会, Sep. 2015.
147.	Tetsuo Ichikawa : 長期経過症例とインプラントの再構成: 咬合と力への配慮第44回公益社団法人日本口腔インプラント学会学術大会 2014.9.13 東京, Sep. 2015.
148.	Tetsuo Ichikawa : 1. ハイドロキシアパタイトナノ薄膜コーティング処理PEEKインプラントの骨形成促進効果第44回公益社団法人日本口腔インプラント学会学術大会 2014.9.13 東京, Sep. 2015.
149.	Tetsuo Ichikawa : 低周波パルス磁場が骨芽細胞の分化に与える影響平成26年度(公社)日本補綴歯科学会中国・四国，関西支部合同支部学術大会 2014.9.6-7 倉敷, Sep. 2015.
150.	松島京, 植村勇太, 南憲一, Megumi Watanabe and Tetsuo Ichikawa : 歯科用金属アレルギーと口腔扁平苔癬組織浸潤細胞の関連, 平成27年度(公社)日本補綴歯科学会中国・四国支部学術大会, Sep. 2015.
151.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao, Tetsuo Ichikawa, 萬好哲也 and 井上三四郎 : デジタル技術を用いた全部床義歯治療の効率化 -咬合圧印象用トレーの臨床評価-, 平成27年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Sep. 2015.
152.	Kazutomo Yagi, AA Lowe, Tetsuo Ichikawa and FR Almeida : Mandibular movements during sleep in obstructive sleep apnea patients with and without a mandibular advancement device., 日本補綴歯科学会中国・四国支部, Sep. 2015.
153.	工藤亮平 and Tetsuo Ichikawa : 補綴装置における個人認証システムの開発第13回警察歯科医会全国大会, Aug. 2015.
154.	Keiko Fujimoto, 馬場拓朗, Tsuyoshi Honda, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : テクスチャープロファイル分析による義歯安定剤および口腔保湿剤の選択法の検討, 日本老年歯科医学会第26回学術大会, Jun. 2015.
155.	藤本けい子, 馬場拓朗, Tsuyoshi Honda, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : テクスチャープロファイル分析による義歯安定剤および口腔保湿剤の選択法の検討, 日本老年歯科医学会第26回学術大会, Jun. 2015.
156.	Kazutomo Yagi and Tetsuo Ichikawa : 閉塞性睡眠時無呼吸症候群患者の睡眠中の嚥下頻度の変化下顎前方移動装置使用時と非使用時, 日本老年歯科医学会, Jun. 2015.
157.	Yuki Iwawaki, 檜垣宜明, Takaharu Goto, 渡邉恵, Yoritoki Tomotake and Tetsuo Ichikawa : microRNA -mirR-494-3p -, 平成27年度社団法人日本補綴歯科学会第124回学術大会, May 2015.
158.	Tsuyoshi Honda, 藤本けい子, 馬場拓朗, Kan Nagao and Tetsuo Ichikawa : 嚥下音と嚥下動態の同時記録による嚥下音産生機序の解明, (公社)日本補綴歯科学会第124回学術大会, May 2015.
159.	Tetsuo Ichikawa : 種床用材料に対する機能水の除菌効果第16回日本口腔機能水学会学術大会 2015.3.29, Mar. 2015.
160.	Keiko Fujimoto, 南憲一, 本田剛, Takaharu Goto, 柏原稔也 and Tetsuo Ichikawa : 義歯安定剤および口腔保湿剤の選択基準:材料学的見地から, 日本義歯ケア学会第7回学術大会, Jan. 2015.
161.	藤本けい子, 南憲一, 本田剛, Takaharu Goto, 柏原稔也 and Tetsuo Ichikawa : 義歯安定剤および口腔保湿剤の選択基準:材料学的見地から, 日本義歯ケア学会第7回学術大会, Jan. 2015.
162.	Tetsuo Ichikawa : 咬合採得用リムを用いた無歯顎咬合採得:咬合床の動揺から見た検討第7回日本義歯ケア学会学術大会 2015.1.24 千葉, Jan. 2015.
163.	Tetsuo Ichikawa : 義歯安定剤および口腔保湿剤の選択基準:材料学的見地から第7回日本義歯ケア学会学術大会 2015.1 千葉, Jan. 2015.
164.	Yoshihito Naitou, Ryo Jinbo, Toyoko Tajima, Tetsuo Ichikawa and Yoritoki Tomotake : ウサギ頭蓋骨におけるシンバスタチン封入徐放型マイクロスフィアの骨形成促進効果, 日本口腔インプラント学会中国・四国支部学術大会, Nov. 2014.
165.	Kazumitsu Sekine, Jiyon Be, Yoshihito Naitou, Tetsuo Ichikawa and Kenichi Hamada : チタン微粒子焼結と表面改質による血管内皮誘導を目的としたチタン多孔質体の開発, 第52回日本人工臓器学会大会, Oct. 2014.
166.	岩脇有軌, Noriko Mizusawa, Takeo Iwata, Shinji Ono, Yoritoki Tomotake, Tetsuo Ichikawa and Katsuhiko Yoshimoto : メカニカルストレス応答性 miR-494-3p による FGFR2 発現の抑制, 第56回歯科基礎医学会学術大会・総会福岡, Sep. 2014.
167.	Tetsuo Ichikawa : Analysis of Small GTPases in Keratinocytes during Nickel Allergy Development 38th Annual Conference of The European Prosthodontic Association, Sep. 2014.
168.	Kazumitsu Sekine, Bae Ji-Young, Yoshihito Naitou, Tetsuo Ichikawa and Kenichi Hamada : チタン微粒子焼結と表面改質による血管内皮誘導を目的としたチタン多孔質体の開発, Artificial Organs, Vol.43, No.2, S-221, Sep. 2014. (Keyword) マイクロスフェア
169.	Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : 周期的低周波磁場が骨芽細胞の分化に与える影響, 第44回公益社団法人日本口腔インプラント学会学術大会, Sep. 2014.
170.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : デジタル技術を用いた全部床義歯治療の効率化-非接触式デジタル印象採得の可能性の検討-, 平成26年度(公社)日本補綴歯科学会中国・四国,関西支部合同支部学術大会, Sep. 2014.
171.	Kazutomo Yagi, AA Lowe, NT Ayas, JA Fleetham, Tetsuo Ichikawa and FR Almeida : 閉塞性睡眠時無呼吸症候群患者の睡眠中の呼吸努力と下顎の姿勢変動, 日本補綴歯科学会中国・四国支部, Sep. 2014.
172.	岩脇有軌, Takaharu Goto, 柏原稔也 and Tetsuo Ichikawa : 補綴装置における個人認証システムの開発, 第13回警察歯科医会全国大会, Aug. 2014.
173.	柏原稔也, 檜垣宜明, Takaharu Goto and Tetsuo Ichikawa : 第107回歯科医師国家試験における有床義歯分野問題の分析:教員，受験生，学生への調査, 四国歯学会第45回総会, Jun. 2014.
174.	Kazumitsu Sekine, Yoshihito Naitou, Tetsuo Ichikawa, Jiyon Be and Kenichi Hamada : Development and evaluation of micro-porous titanium scaffold for promoting neointimal growth as the blood contacting surface, 第53回日本生体医工学会大会, Jun. 2014.
175.	Tsuyoshi Honda, 藤本けい子, 東岡紗知江, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 嚥下量・頚部姿勢変化による嚥下音への影響, 日本老年歯科医学会第25回学術大会, Jun. 2014.
176.	岩脇有軌, 水澤典子, Hideki Suitou, Takaharu Goto, 渡邉恵, Yoritoki Tomotake and Tetsuo Ichikawa : メカニカルストレスに応答するmiR-494-3pはFGFR2の発現を抑制する, 公益社団法人日本補綴歯科学会第123回学術大会, May 2014.
177.	Bayarmagnai Sapaar, Kan Nagao, Takaharu Goto, Yoshihito Naitou and Tetsuo Ichikawa : ノンメタルクラスプデンチャーのクラスプと義歯床のデザインに関する検討, 公益社団法人日本補綴歯科学会第123回学術大会, May 2014.
178.	南憲一, 藤本けい子, 本田剛, Takaharu Goto, 柏原稔也 and Tetsuo Ichikawa : 咬合採得用リムを用いた無歯顎咬合採得:咬合床の動揺から見た検討, 日本義歯ケア学会第7回学術大会, Jan. 2014.
179.	南憲一, Takaharu Goto, 本田剛, Toshiya Kashiwabara, Kan Nagao and Tetsuo Ichikawa : 義歯安定剤の使用が咬合接触および下顎運動に与える影響, 第6回日本義歯ケア学会学術大会, Jan. 2014.
180.	Yuichi Ishida, Takaharu Goto, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : フルートの演奏を仕事とする患者に対してインプラント治療を行った1 症例, 第33回公益社団法人日本口腔インプラント学会中国・四国支部総会学術大会, Nov. 2013.
181.	岩脇有軌, Takaharu Goto, 渡邉恵, Yoritoki Tomotake and Tetsuo Ichikawa : メカニカルストレスに応答するmicroRNAの同定, 第43回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2013.
182.	Sapaar Bayarmagnai, Yoshihito Naitou, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : Loss of retentive force and per,manent deformation of polyethylene terephthalate and polyster clasps retainers, 平成25年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Sep. 2013.
183.	檜垣宜明, Takaharu Goto, Yuichi Ishida, Yoritoki Tomotake, Kan Nagao, Tetsuo Ichikawa and 多田望 : 口腔内刺激が脳機能活動に与える影響, 平成25年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Aug. 2013.
184.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao, Tetsuo Ichikawa and Masayo Okajima : デジタル技術を用いた全部床義歯治療の効率化 ―3Dスキャナによる研究用模型と作業用模型の一致度の検討―, 平成25年度公益社団法人日本補綴歯科学会中国・四国支部学術大会, Aug. 2013.
185.	岩脇有軌, Noriko Mizusawa, Takeo Iwata, 小野信二, Yoritoki Tomotake, Tetsuo Ichikawa and Katsuhiko Yoshimoto : 機械的刺激応答性miRNAの同定, 第5回日本RNAi研究会広島, Aug. 2013.
186.	Tsuyoshi Honda, 比嘉仁志, 東岡紗知江, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 多チャンネルセンサを用いた嚥下音記録による嚥下動態評価, 日本老年歯科医学会第24回学術大会, Jun. 2013.
187.	Sachie Toko, Hitoshi Higa, Tsuyoshi Honda, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : スダチのにおい刺激による咀嚼嚥下促進補助法の開発:刺激剤と刺激方法の検討, 日本老年歯科医学会第24回学術大会, Jun. 2013.
188.	Hideki Suito, 岩脇有軌, Yuichi Ishida, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : 疑似体液中でのチタン溶出への影響を及ぼす因子の検討, 公益社団法人日本補綴歯科学会設立80周年記念第122回学術大会, May 2013.
189.	水頭英樹, 岩脇有軌, Yuichi Ishida, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : 疑似体液中でのチタン溶出への影響を及ぼす因子の検討, 公益社団法人日本補綴歯科学会設立80周年記念第122回学術大会, May 2013.
190.	Toshiyuki Suge, Naoto Noguchi, Takashi Matsuo, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 日本大学松戸歯学部臨床実習視察報告, 第42回四国歯学会例会, Mar. 2013.
191.	Keiji Oishi, Hisahiro Takeuchi, Takashi Matsuo, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 広島大学臨床実習視察報告, 第42回四国歯学会例会, Mar. 2013.
192.	Toshiya Kashiwabara, 米山武義 and Tetsuo Ichikawa : in vitroカンジダバイオフィルムに対する電解次亜水の効果, 第14回日本口腔機能水学会学術大会, Mar. 2013.
193.	本田剛, Takaharu Goto, Yoshihito Naitou, Toshiya Kashiwabara and Tetsuo Ichikawa : ルミテスターを用いた義歯の超音波洗浄効果の評価, 第5回日本義歯ケア学会学術大会, Jan. 2013.
194.	Hideki Suito, Takaharu Goto, Yuichi Ishida, Yoritoki Tomotake and Tetsuo Ichikawa : 磁性アタッチメントを応用したミニインプラントオーバーデンチャーの負担圧分布と義歯の動揺解析, 第32回日本口腔インプラント学会中国・四国支部学術大会, Nov. 2012.
195.	Yoritoki Tomotake, 藤本直樹, 山田幸夫, 富永賢 and Tetsuo Ichikawa : 歯冠内スライドアタッチメントによる分割式上部構造を用いた症例考察．, 日本口腔インプラント学会中国四国支部学術大会, Nov. 2012.
196.	Yuichi Ishida, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント暫間上部構造による最終上部構造の推定．, 日本歯科医学会総会, Nov. 2012.
197.	Takaharu Goto, Kan Nagao, Yuichi Ishida, Toshiya Kashiwabara, Yoritoki Tomotake and Tetsuo Ichikawa : インプラントオーバーデンチャー床下組織の負担分布と義歯の動揺に関する研究, 第22回日本歯科医学会総会, Nov. 2012.
198.	Kazumi Ozaki, 那賀川明美, Masanori Nakano, Yasuhiko Shirayama, Miwa Matsuyama, Daisuke Hinode, Masaru Hada, Masami Yoshioka, Atsuko Nakamichi, Kaya Yoshida, Yuko Takeuchi, Yumi Hoshimo, Natsumi Fujiwara, Hiromi Nakae, 薮内さつき, Hiroki Iga, Fumiaki Kawano and Tetsuo Ichikawa : 社会福祉施設での訪問口腔ケアを支援する包括ケア型地域ICTシステムについて, 第22回日本歯科医学会総会プログラム・事前抄録集, 163, Nov. 2012.
199.	Kan Nagao, Takaharu Goto, Yuichi Ishida, Tetsuo Ichikawa, 秀島雅之, 越野寿, 星合和基 and 梅川義忠 : マグネットを義歯に付着する際は，加圧状態の方が無圧よりも経過がよいか?-デルファイ法による調査-, 第22回日本磁気歯科学会学術大会, Nov. 2012.
200.	Takaharu Goto, Yuichi Ishida, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : 磁性アタッチメントを歯冠内・歯冠外アタッチメントとして用いた長期経過症例について, 第22回日本磁気歯科学会学術大会, Nov. 2012.
201.	Teruaki Ito, Tetsuo Ichikawa, Nevan Hanumara and Alexander Slocum : UT-MIT collaboration for PBL-based design education, 日本機械学会設計工学システム部門研究発表講演会2012・講演論文集, Vol.12, No.17, 270-277, Sep. 2012. (Summary) UT-MIT (University of Tokushima and Massachusetts Institute of Technology) joint research project was conducted in conjunction with precision machine design class 2.75 and a significant result was obtained on the research of dental headrest adjustment mechanism. After a short introduction of precision machine design class 2.75, this paper describes a brief overview of UT-MIT joint project, including its background, procedures and results. Then the paper reviews the reasons why UT-MIT project achieved a successful result, and discusses the basic requirements on global PBL from several point of views, including competition/collaboration, individual/teamwork, carrots/sticks, ICT, online/offline, and field/language/culture. (Keyword) PBL / Engineering Education / Engineering-based dentistry / Precision machine design
202.	水頭英樹, Takaharu Goto, Yoritoki Tomotake, Tetsuo Ichikawa and 西村良一 : チタンの溶出に影響を及ぼす因子の検討, Journal of Japanese Society of Oral Implantology, Vol.25, 292, Sep. 2012.
203.	岩脇有軌, 西中英伸, Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント上部構造における主機能部位と補綴学的問題の関連について, Journal of Japanese Society of Oral Implantology, Vol.25, 295, Sep. 2012.
204.	Hideki Suito, Takaharu Goto, Yoritoki Tomotake, Tetsuo Ichikawa and 西村良一 : チタンの溶出に影響を及ぼす因子の検討, 第42回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2012.
205.	大野彩, 窪木拓男, Tetsuo Ichikawa, 秀島雅之, Yuji Sato, 玉置勝司, 赤川安正, Kan Nagao, 櫻井薫, 馬場一美, 皆木省吾, 鱒見進一, 佐藤博信, 澤瀬隆, 長岡英一, 和気裕之, 大山喬史, 平井敏博 and 佐々木啓一 : OHIP日本語版を用いた補綴治療患者の口腔関連QOL評価における最小重要差の検討, 平成24年度 (社)日本補綴歯科学会中国・四国・九州合同学術大会, Sep. 2012.
206.	Sapaar Bayarmagnai, Yoshihito Naitou, Takaharu Goto, Kan Nagao and Tetsuo Ichikawa : Extracellular DNA of Candida albicans and its effect on biofilm formation on denture base materials, 平成24年度 (社)日本補綴歯科学会中国・四国・九州合同学術大会, Sep. 2012.
207.	東岡紗知江, 比嘉仁司, 本田剛, Seiko Hongama, Kan Nagao, Tetsuo Ichikawa and 堀内政信 : 咀嚼過程における摂取食品のテクスチャー変化, 平成24年度 (社)日本補綴歯科学会中国・四国・九州合同学術大会, Sep. 2012.
208.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Kan Nagao, Tetsuo Ichikawa and Junji Komoda : デジタル技術を用いた全部床義歯治療の効率化 -無歯顎模型に対するデジタル印象の印象精度の検討-, 平成24年度 (社)日本補綴歯科学会中国・四国・九州合同学術大会, Sep. 2012.
209.	本田剛, 比嘉仁司, 東岡紗知江, Seiko Hongama, Kan Nagao, Tetsuo Ichikawa and 今井守夫 : 嚥下音を用いた嚥下スクリーニング検査法の開発, 平成24年度 (社)日本補綴歯科学会中国・四国・九州合同学術大会, Sep. 2012.
210.	Seiko Hongama, 東岡紗知江, 本田剛, Kan Nagao and Tetsuo Ichikawa : スダチにおい刺激による唾液分泌と食塊形成への影響, 日本老年歯科医学会第23回学術大会, Jun. 2012.
211.	Takaharu Goto, Yuichi Ishida, Yoritoki Tomotake, Kan Nagao, Tetsuo Ichikawa and 宮本雅司 : 義歯の動揺計測からインプラントオーバーデンチャー床下組織の負担分布を推定できるか, 社団法人日本補綴歯科学会第121回学術大会, May 2012.
212.	Megumi Watanabe, Yoshihito Naitou, Yoritoki Tomotake and Tetsuo Ichikawa : Analysis of G-protein in Dendritic Cells in Nickel Allergy Mouse Model, 日本補綴歯科学会第121回学術大会, May 2012.
213.	Takaharu Goto, Kan Nagao, Takashi Matsuda, Toshiya Kashiwabara and Tetsuo Ichikawa : デルファイ法を用いた義歯にとっての妥当なリコール間隔に関するアンケート調査, 第4回日本義歯ケア学会学術大会, Jan. 2012.
214.	Hideki Suito, 岩脇有機, Yoshihito Naitou, Daisuke Nagao, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : セメントおよびスクリュー固定を併用するインプラント-上部構造に関する考察, Annals of Japan Prosthodontic Society, Vol.4, No.1, Jan. 2012.
215.	Nur Meinar Ashrin, Megumi Watanabe, Rieko Arakaki, Akiko Yamada, Tetsuo Ichikawa, Yoshio Hayashi and Naozumi Ishimaru : Analysis of Immune Responess to Metal using Murine Nickel Allergy Model., Proceedings of the Japanese Society for Immunology, Vol.40, 102, Nov. 2011.
216.	Kazuhito Hamaguchi, Masatake Akutagawa, Yoshinori Tegawa, Yohsuke Kinouchi, Tetsuo Ichikawa and Seiko Hongama : Comparison of the swallowing mensuration using MI sensor with swallowing sound using the pharynx microphone, 日本磁気歯科学会第21回学術大会講演抄録集, 18, Nov. 2011. (Summary) 嚥下障害のスクリーニング検査にはRSST(repetitive saliva swallowing test)が広く用いられている．測定用の機器が必要ないため，簡易的に実施することが可能であるが，術者の主観的な感覚によるところがあり，より客観的な検査法あるいは検査器具が必要とされている．そこで磁気センサを用いて喉頭隆起部の運動を測定することにより，RSSTの補助あるいは代替法の開発を目指している．本研究は測定時のセンサと磁石の配置について，取り付け部位の動きの実測から適切な組み合わせについて検討している．
217.	Hideki Suito, Yoshihito Naitou, Daisuke Nagao, Megumi Watanabe and Tetsuo Ichikawa : カルシウム水溶液中での水熱処理によるインプラント候補材の骨伝導能の向上, 第31回日本口腔インプラント学会中国四国支部総会学術大会, Oct. 2011.
218.	岩脇有軌, Yuichi Ishida, Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント治療に対する認識 -学生・研修医へのアンケート調査-, 第31回日本口腔インプラント学会中国四国支部総会学術大会, Oct. 2011.
219.	Daisuke Nagao, Yoshihito Naitou, Hideki Suito, Yoritoki Tomotake and Tetsuo Ichikawa : インプラント周囲溝滲出液中におけるタンパクの定量的評価, 第41回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2011.
220.	Yuichi Ishida, Hideki Suito, Takaharu Goto, Yoritoki Tomotake and Tetsuo Ichikawa : Estimation of prosthetic complications occurred in the superstructure by the provisional restoration:veneer fractures and interproximal contact loss, 第41回公益社団法人日本口腔インプラント学会・学術大会, Sep. 2011.
221.	Takashi Matsuda, Takaharu Goto, Yuichi Ishida, Toshiya Kashiwabara, Tetsuo Ichikawa, Syusai Sato and 井上三四郎 : デジタル技術を用いた全部床義歯治療の効率化:デジタル印象・咬合採得のシステム化の試み, 平成23年度(社)日本補綴歯科学会中国・四国支部学術大会, Sep. 2011.
222.	Toshiya Kashiwabara and Tetsuo Ichikawa : 義歯床用材料の機能水による洗浄が色調安定性に及ぼす影響, 第12回日本口腔機能水学会学術大会, Jul. 2011.
223.	李景, Toshiya Kashiwabara, Yoshihito Naitou, Hideki Suito, Katsuhiko Hirota, Yoichiro Miyake and Tetsuo Ichikawa : バイオフィルムに対するUV-LEDパルス照射の消毒効果, LED総合フォーラム2011 in 徳島, Jun. 2011.
224.	李景, Toshiya Kashiwabara, Yoshihito Naitou, 水頭英樹, Katsuhiko Hirota, Yoichiro Miyake and Tetsuo Ichikawa : バイオフィルムに対するUV-LEDパルス照射の消毒効果, LED総合フォーラム2011 in 徳島, Jun. 2011.
225.	Yoshihito Naitou, 東岡紗知江, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : イグサ粉末を添加した義歯安定材のカンジダ菌に対する抗菌活性とその物性, 日本老年歯科医学会第22回学術大会, Jun. 2011.
226.	Yoshihito Naitou, 李景, 東岡紗知江, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 生物由来物質を用いた抗菌性ティッシュコンディショナーの抗カンジダ効果と機械的性質, 日本老年歯科医学会総会・学術大会プログラム・抄録集, 141, Jun. 2011.
227.	Tetsuo Ichikawa and 後藤崇晴 : 咀嚼の質を測る:酸化鉄剤とナノテスラ磁気センサを用いた摂食，嚥下機能診断法の開発, 日本顎口腔機能学会第46 回学術大会シンポジウム「顎口腔機能を測る」, May 2011.
228.	木村彩, 窪木拓男, Tetsuo Ichikawa, 秀島雅之, Yuji Sato, 玉置勝司, 赤川安正, Kan Nagao, 櫻井薫, 馬場一美, 皆木省吾, 鱒見進一, 佐藤博信, 澤瀬隆, 長岡英一, 和気裕之, 大山喬史, 平井敏博 and 佐々木啓一 : 補綴治療の難易度を測定するプロトコルの信頼性と妥当性の検討, 社団法人日本補綴歯科学会第120回記念学術大会, May 2011.
229.	Ashrin Nur Meinar, Megumi Watanabe and Tetsuo Ichikawa : Analysis of Molecular Mechanism for Pathogenesis of Nickel Allergy, 社団法人日本補綴歯科学会第120回記念学術大会, May 2011.
230.	Toshiya Kashiwabara, 後藤崇晴, Kan Nagao and Tetsuo Ichikawa : マイクロ波重合型床用レジン重合法における磁気遮蔽の効果, 社団法人日本補綴歯科学会第120回記念学術大会, May 2011.
231.	T Goto, H Nishinaka, Toshiya Kashiwabara, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : Significance of the Main Occluding Area in Implant Treatment, 社団法人日本補綴歯科学会第120回記念学術大会, May 2011.
232.	Kan Nagao, Natsumi Fujiwara, Tomoko Kimura, Akihiro Yasue, Masami Yoshioka, Yoichiro Miyake, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 東京医科歯科大学の臨床実習視察報告, 四国歯学会第38回例会, Mar. 2011.
233.	Hisahiro Takeuchi, Toshiyuki Suge, Yukihiro Momota, Kazumi Ozaki, Atsuko Nakamichi, Yoichiro Miyake, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 日本歯科大学臨床実習視察報告, 第38回四国歯学会例会, Mar. 2011.
234.	Toshiya Kashiwabara, 後藤崇晴, Yoshihito Naitou and Tetsuo Ichikawa : 粘膜調整材の機能水による洗浄が色調安定性に及ぼす影響, 第3回日本義歯ケア学会学術大会, Jan. 2011.
235.	Yuichi Ishida, 後藤崇晴, Megumi Watanabe, Yoritoki Tomotake and Tetsuo Ichikawa : 臼歯遊離端欠損症例におけるインプラント上部構造に関する臨床調査, 第30回日本口腔インプラント学会中国・四国支部総会・学術大会, Nov. 2010.
236.	Kazuhito Hamaguchi, Masatake Akutagawa, Yoshinori Tegawa, Yohsuke Kinouchi and Tetsuo Ichikawa : Examination of the sensor placement in the swallowing measurement using MI sensor, 日本磁気歯科学会第20回学術大会抄録集, 32, Oct. 2010.
237.	Yoritoki Tomotake, 木村英一郎, 河上雄之介, 加藤智彦, 陶山ケイ子, 岸祐治, 山根進 and Tetsuo Ichikawa : インプラント治療への患者と歯科医の疑問に関するアンケート調査, 第40回日本口腔インプラント学会・学術大会, Sep. 2010.
238.	設楽純子, 矢納義高, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 殺菌剤配合洗口液が口腔衛生状態に与える影響について, 第59回日本口腔衛生学会・総会, Sep. 2010.
239.	李景, Yoshihito Naitou, Megumi Watanabe, Daisuke Nagao and Tetsuo Ichikawa : Characteristics of Candidal adherence and biofilm formation on materials used in the implant overdenture, 第40回日本口腔インプラント学会・学術大会, Sep. 2010.
240.	後藤崇晴, Yuichi Ishida, Yoritoki Tomotake, Kan Nagao and Tetsuo Ichikawa : アタッチメントの違いがインプラントオーバーデンチャー床下組織の負担圧に及ぼす影響 -義歯の剛性の影響-, 第40回日本口腔インプラント学会・学術大会, Sep. 2010.
241.	Yoshihito Naitou, 李景, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 生物由来物質を用いた抗菌性ティッシュコンディショナーの抗カンジダ効果と機械的性質, Japanese Journal of Gerodontology, Vol.25, No.2, 252-253, Sep. 2010.
242.	Kan Nagao and Tetsuo Ichikawa : 義歯の良好な術後経過を得るためのリコール間隔について ―デルファイ法による調査―, 平成22年度(社)日本補綴歯科学会中国・四国支部学術大会, Aug. 2010.
243.	後藤崇晴, Kan Nagao, Yuichi Ishida, Toshiya Kashiwabara, Tetsuo Ichikawa, 萬好哲也 and 市場裕康 : 次世代の義歯製作法に関する一考察, 平成22年度(社)日本補綴歯科学会中国・四国支部学術大会, Aug. 2010.
244.	西中英伸, 後藤崇晴, 東岡紗知江, Yuichi Ishida, Yoshihito Naitou, Tetsuo Ichikawa and 多田望 : 欠損歯列における主機能部位の観察;補綴治療前後での変化, 平成22年度(社)日本補綴歯科学会中国・四国支部学術大会, Aug. 2010.
245.	設楽純子, 大熊桂子, 矢納義高, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 殺菌剤配合洗口液が口腔衛生状態に与える影響について, Journal of Dental Health, Vol.60, No.4, 454, Aug. 2010.
246.	Seiko Hongama, 東岡紗知江, Yoshihito Naitou, Kan Nagao and Tetsuo Ichikawa : 姿勢変化が喉頭閉鎖持続時間に与える影響, 日本老年歯科医学会総会第21回学術大会, Jun. 2010.
247.	Yoshihito Naitou, 李景, Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 生物由来物質を用いた抗菌性ティッシュコンディショナーの抗カンジダ効果と機械的性質, 一般社団法人日本老年歯科医学会第21回学術大会, Jun. 2010.
248.	河野孝則, Kenji Oka and Tetsuo Ichikawa : 青紫半導体レーザーおよび紫外線発光ダイオードを用いたチタン表面改質:生物学的評価, 第119回日本補綴歯科学会学術大会, Jun. 2010.
249.	Yoshihito Naitou, Kenichi Hamada and Tetsuo Ichikawa : 生体由来成分による抗菌性ティッシュコンディショナーの開発, 第54回日本歯科理工学会学術講演会, Oct. 2009.
250.	Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : 磁気センサを用いた簡易嚥下機能測定方法嚥下姿勢と辛味成分が測定値に与える影響, 日本老年歯科医学会総会・学術大会プログラム・抄録集, 167, Jun. 2009.
251.	Yoshihito Naitou, Kenichi Hamada, Kenzo Asaoka and Tetsuo Ichikawa : モールドレス成形および焼成可能なポーラスチタンの開発, 日本バイオマテリアル学会シンポジウム2008, Nov. 2008.
252.	Kyuma Tanida, Masatake Akutagawa, Yohsuke Kinouchi and Tetsuo Ichikawa : Diagnosis for Swallowing Difficulty Targeted for The Elderly using Magnet Impedance Sensor, 第18回日本磁気歯科学会学術大会抄録集, 15, Oct. 2008.
253.	石田雄一, Yutaka Sato, Kan Nagao and Tetsuo Ichikawa : MIセンサ内蔵姿勢検出センサの仮想咬合平面設定への応用, 第18回日本磁気歯科学会学術大会抄録, Oct. 2008. (Keyword) occlusion
254.	谷田弓磨, 池田祐一, 佐藤康弘, Masatake Akutagawa, Yohsuke Kinouchi, Tetsuo Ichikawa, Seiko Hongama, 山本哲彦 and 石田雄一 : Evaluation of Deglutition Movement by the Change in Posture using Magneto-Impedance Sensor, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 249, Sep. 2008.
255.	奥津達, 吉田有里, Daisuke Nagao, 石田雄一, Yutaka Sato, Yoritoki Tomotake and Tetsuo Ichikawa : Response to Intermittent Compressive Stress in MC3T3-E1 Cells, 日本口腔インプラント学会・第38回学術大会抄録, Vol.21, 135, Sep. 2008. (Summary) Ⅰ目的:力学的ストレスに対する周囲骨組織の応答を検討することは, インプラント治療において重要である. 持続的圧縮ストレスによる骨芽細胞の遺伝子発現の変化を検討している研究はこれまでに多数認められ, 我々も以前に持続的圧縮ストレスをMC3T 3-E1細胞に加えた場合, インテグリンを介してHeat shock prote in 25 (Hsp25) の発現が上昇することを見出した. しかし, 間欠的な圧縮ストレスと持続的な圧縮ストレスを比較した報告は少ない. そこで今回, 骨芽細胞様細胞株MC3T3-E1に圧縮力を加え, その圧縮頻度及び時間の相違による応答を検討した. Ⅱ材料及び方法:マウス骨芽細胞様細胞株MC3T3-E1細胞をコラーゲンコーティングプレートに播種, コンフルエントに達するまで培養後, 自作の細胞圧縮装置によって間欠的および持続的な圧縮力 (約320 Pa) を加えた. 間欠的圧縮力は等時間間隔で圧縮, 非圧縮を24時間繰り返す設定とした. その後, RNAを採取し, リアルタイムRT-PCRにて特定遺伝子の発現量を検討した. 対象遺伝子には, ストレスのマーカーとして知られているCyclooxygen ase-2 (Cox-2) 及びHeat shock protein 25 (Hsp25) を, また骨のリモデリングの指標としてOsteoprotegerin (Opg) を, さらに内部標準には, TATA box binding protein (Tbp) を採用した. Ⅲ結果:Cox-2, Hsp25は24時間の持続的な圧縮ストレスにより発現量の上昇が認められた. また, 短時間の間欠的圧縮力 (8分以下の圧縮と非圧縮の繰り返し) を加えた24時間刺激後のCox-2, Hsp25遺伝子発現は非圧縮群に比較して著明な変化は認められなかった. Opg遺伝子発現に関しては, 非圧縮群と, 持続的及び短時間の間欠的圧縮群との間に有意差は認められなかった. Ⅳ考察及び結論:以上の結果により, 骨芽細胞様細胞MC3T3-E1 においては, Cox-2, Hsp25発現に関しては持続的な圧縮ストレスの影響が大きく, 短時間の間欠的な圧縮ストレスでは遺伝子発現応答に影響が少ないことが示された. また, Opgに関しては持続的, 短時間の間欠的圧縮ストレスとも遺伝子発現応答に影響が少ないことが示された. 今後, インプラントに加わる時間的要因を遺伝子レベルで明らかにすることによって, インプラント治療のリスクファクターを明確にできると考える.
256.	谷田弓磨, 池田祐一, 佐藤康弘, Masatake Akutagawa, Yohsuke Kinouchi, Seiko Hongama and Tetsuo Ichikawa : 高感度磁気センサ(MIセンサ)を用いた嚥下時の喉頭運動計測装置に関する研究, The Journal of the Japanese Society of Magnetic Applications in Dentistry, Vol.17, No.1, 75, Sep. 2008.
257.	Masami Yoshioka, Naoko Matsumoto, Yumi Hoshimo, Daisuke Hinode, Hiroki Iga, Masaaki Yokoyama, Tetsuo Ichikawa, Fumiaki Kawano and Takafumi Noma : -, 第27回日本歯学医学教育学会総会及び学術大会, Jul. 2008.
258.	Masayo Okajima, Kan Nagao, Yutaka Sato, 吉田有里 and Tetsuo Ichikawa : The Development of Post-Prosthetic Simulation and Face Prediction using Three-dimensional Image Processing, The Journal of the Japan Prosthodontic Society, Vol.52, No.117, 97, Jun. 2008.
259.	Seiko Hongama and Tetsuo Ichikawa : 静岡県立静岡がんセンターにおける口腔ケアの実際チームアプローチを通して, Shikoku Dental Research, Vol.21, No.2, 429, Mar. 2008.
260.	谷田弓磨, 池田祐一, 佐藤康弘, Masatake Akutagawa, Yohsuke Kinouchi, Seiko Hongama and Tetsuo Ichikawa : 高感度磁気センサ(MIセンサ)を用いた嚥下時の咽頭運動計測装置に関する研究, 第17回磁気歯科学会学術大会抄録, 75, Nov. 2007.
261.	谷田弓磨, 池田祐一, 佐藤康弘, Masatake Akutagawa, Yohsuke Kinouchi, Tetsuo Ichikawa, Seiko Hongama, 山本哲彦 and 石田雄一 : Screening Device for Swallowing Difficulty using Magneto-Impedance Sensor, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 228, Sep. 2007.
262.	石田雄一, Yutaka Sato, 吉田有里, Daisuke Nagao, Yoritoki Tomotake and Tetsuo Ichikawa : Development of the implant positioning system using motion control sensor, Sep. 2007. (Summary) Ⅰ目的:我々は1993年にPilot hole preparationという埋入方法を，2002年にrapid prototypingを用いた方法をいち早く報告している．その後，CT画像からコンピュータ上で適正なインプラント埋入位置をシミュレートし，その結果を反映した外科用テンプレートにより，安全で精度の高いインプラント埋入する方法が一般化しつつある．今回，我々は3次元の全方位姿勢角度の計測可能センサを用いたインプラント埋入システムを考案したので，そのシステムの概要と有用性について報告する．Ⅱ方法:本システムは，アモルファスワイヤの磁気インダクタンス効果を利用したモーションコントロールセンサ(AMI，愛知製鋼)部と検出部からなる．測定対象の基本姿勢をセンサで計測し，この座標系に対する測定対象の3次元的な姿勢角度をリアルタイムでモニターすることができる．現時点でのシステムの角度検出の精度と，模型を使用して従来の外科用テンプレートと比較した場合の埋入精度について調査した．Ⅲ結果:時間的変動は0.46度，空間的精度は2.25度であった．埋入精度は，外科用テンプレートと比較した場合に，若干劣った．しかし，テンプレートの動揺に気を遣う必要はなく，操作性では優れていた．Ⅳ考察および結論:センサ精度としては実用化の範囲に近づいている．本システムは，インプラント埋入において有用なしステムになりうることが示唆された．
263.	田北啓洋, 藤田圭二, Kan Nagao, Tetsuo Ichikawa and Yoshio Hayasaki : デンタルメモリーー歯科補綴物への情報記録ー, IEICE Technical Report, Vol.107, No.154, 51-54, Jul. 2007.
264.	Seiko Hongama, Kan Nagao and Tetsuo Ichikawa : Simple Screeing Method for Swallowing Disorder : Description of MI sensor-oriented System, 日本補綴歯科学会雑誌. 特別号, 日本補綴歯科学会学術大会抄録集 = Proceedings of the ... conference, the Japan Prosthodontic Society, Vol.51, No.116, 144, May 2007. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1571135650657663232 (CiNii: 1571135650657663232)
265.	Yoshihito Naitou, Kenichi Hamada, Tetsuo Ichikawa and Kenzo Asaoka : モールドレス成形および焼成したチタン多孔体の基礎的評価, 第49回日本歯科理工学会学術講演会, May 2007.
266.	Kan Nagao, 矢納義高, Tetsuo Ichikawa, Seiko Hongama, 市場裕康 and 萬好哲也 : 塩化ベンゼトニウム配合洗口液を用いた高齢者の口内環境の改善, The Journal of the Japan Prosthodontic Society, Vol.51, 158, May 2007.
267.	藤田圭二, 田北啓洋, 河野孝則, Tetsuo Ichikawa and Yoshio Hayasaki : 歯科用金属へのフェムト秒レーザー加工, レーザー学会学術講演会弟27回年次大会講演予稿集, 119, Jan. 2007.
268.	藤田圭二, 田北啓洋, Tetsuo Ichikawa and Yoshio Hayasaki : 本人認証のための歯科装置への情報記録, Optics & Photonics Japan 2006 講演予稿集, 70-71, Nov. 2006.
269.	佐藤康弘, 池田祐一, 谷田弓磨, Masatake Akutagawa, Yohsuke Kinouchi, Tetsuo Ichikawa, 山本哲彦 and 石田雄一 : 高感度磁気センサ(MIセンサ)を用いた嚥下計測装置の開発, 日本磁気歯科学会第16回学術大会抄録集, 13, Oct. 2006.
270.	藤田圭二, 田北啓洋, Yoshio Hayasaki and Tetsuo Ichikawa : フェムト秒レーザーを用いた歯科装置への情報記録, 第67回応用物理学会学術講演会講演予稿集N0.3, 926, Aug. 2006.
271.	Naoki Omura, Seiko Hongama, Toshiya Kashiwabara and Tetsuo Ichikawa : 機能水の歯科補綴領域への応用, 日本口腔機能水学会誌, Vol.6, No.1, 24-25, Feb. 2005.
272.	Seiko Hongama, Kan Nagao, Masaru Hada and Tetsuo Ichikawa : 歯間空隙の存在が構音運動に及ぼす影響:上顎全部床義歯装着者による観察, The Journal of the Japan Prosthodontic Society, Vol.48, 54, May 2004.
273.	Kikuji Yamashita, 中尾雅英, Hiroyuki Morimoto, Tetsuo Ichikawa and Seiichiro Kitamura : コラーゲン線維の形成機構の解明, 第44回歯科基礎医学会総会2002, 97, 2002.
274.	中尾雅英, Kikuji Yamashita, Hiroyuki Morimoto, Kenichi Hamada, Kenzo Asaoka, Seiichiro Kitamura and Tetsuo Ichikawa : チタン表面のリン酸カルシウム形成能を調節する因子, 徳島生物学会第108回総会, 12, Nov. 2001.
275.	Seiko Hongama, Tetsuo Ichikawa, Masatoshi Ishikawa, 小倉直 and 石田修 : 脳血管障害患者に対するPLP(Palatal Lift Prosthesis)を用いた構音改善とその評価, Shikoku Dental Research, Vol.13, No.2, 297, Jan. 2001.
276.	Seiko Hongama, Tetsuo Ichikawa, Masatoshi Ishikawa, Kan Nagao, Fumiaki Kawano and Masaru Hada : 脳卒中患者に可撤性PLP付全部床義歯を適用した1症例音声学及び力学的考察, The Journal of the Japan Prosthodontic Society, Vol.44, 199, Nov. 2000.
277.	中尾雅英, Kikuji Yamashita, Seiichiro Kitamura and Tetsuo Ichikawa : チタン上で培養された骨芽細胞により形成されるアンカー構造について, 第42回歯科基礎医学会, 93, 2000.
278.	Tetsuo Ichikawa : 日本歯科医学会連合における歯科専門医認証制度への対応(日本歯科医学会連合特別講演), Mar. 2.

Products:

1.	日本補綴歯科学会編集, Maki Hosoki, Tetsuo Ichikawa, 大川周治 and 大久保力廣 : 金属アレルギーなので，治療に使う金属が心配です, お口のトラブル解決します補綴歯科へようこそ, 36-3737, May 2019. (Keyword) 補綴
2.	Megumi Watanabe and Tetsuo Ichikawa : 3世代のジルコニア:前装からモノリシック修復までパート2, ザ・クインテッセンス, Vol.37, No.11, 191-201, Nov. 2018.
3.	Tetsuo Ichikawa and Megumi Watanabe : 要介護高齢期を見据えた歯科インプラント治療, Dental Outlook, Vol.132, No.2, 249-277, Aug. 2018.

Et cetera, Workshop:

1.	Yuki Iwawaki and Tetsuo Ichikawa : 萎縮した臼歯部顎堤への骨造成を伴う長い(標準長の)インプラントの代替療法としてのショートインプラントシステマティックレビューとRCTのメタアナリシス, the Quintessence, Vol.40, No.8, 213-229, Aug. 2021.
2.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : LEDによる新しい植物育成照明方法の開発, LED総合フォーラム2020 in 徳島, 131-140, Feb. 2020.
3.	Tetsuo Ichikawa, Yuki Iwawaki, Yuichi Ishida and Megumi Watanabe : 要介護高齢期を見据えた歯科インプラント治療, Dental Outlook, Vol.132, No.2, 249-277, Aug. 2018.
4.	Takaharu Goto and Tetsuo Ichikawa : 義歯の識別，義歯の刻印，予備の義歯, らくらくお口のケア義歯ケア事典, 119-121, 2018.
5.	Takaharu Goto, 檜垣宜明 and Tetsuo Ichikawa : 有床義歯咀嚼機能検査の活用法, ジーシサークル CASE PRESENTATION, 2017.
6.	Junya Asano, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Kazuhiko Furukawa, Shinsuke Konaka, Tetsuo Ichikawa, Fumio Shichijo and Yohsuke Kinouchi : Evaluation method of swallowing function using magnetic sensors, IEICE Technical Report (MBE), Vol.116, No.170, 29-32, Jul. 2016. (Summary) In the area of rehabilitation, there is a growing interest in dysphagia. Purpose of this study is to automate the dysphagia screening test, and to establish an evaluation method with standard evaluation criteria. In this study, the authors developed a measurement device for the laryngeal movement associated with swallowing using a neodymium magnet and three-dimensional magnetic sensors. Subjects' tasks are same as repetitive saliva swallowing test (RSST), modified water swallow test (MWST), and food test which are representative screening test. In this experiment, the first swallowing is extracted as a template waveform for each subject. Similarity to the template is calculated to evaluate the swallowing. The similarity shows high values when subjects do swallowing. Number of swallowing can be counted automatically. It is suggested that screening test can be conducted objectivity without special facilities using this proposed method. (Keyword) Dysphagia / screening test / automatic counter (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572359415637504 (CiNii: 1520572359415637504)
7.	Hisahiro Takeuchi, Toshiyuki Suge, Yukihiro Momota, Kazumi Ozaki, Atsuko Nakamichi, Yoichiro Miyake, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 日本歯科大学臨床実習視察報告, Shikoku Dental Research, Vol.24, No.2, 85-94, Jan. 2012. (Tokushima University Institutional Repository) ● Metadata: 109821 (Tokushima University Institutional Repository: 109821)
8.	Kan Nagao, Tomoko Kimura, Akihiro Yasue, Yoichiro Miyake, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 東京医科歯科大学歯学部歯学科の臨床実習視察報告, Shikoku Dental Research, Vol.24, No.2, 79-84, Jan. 2012. (Tokushima University Institutional Repository) ● Metadata: 109820 (Tokushima University Institutional Repository: 109820)
9.	Katsuhiko Hirota, Tetsuo Ichikawa, Toshiya Kashiwabara, Ken Nemoto, Tsuneko Ono, 村上欣也, Takashi Matsuo, 松本直之 and Yoichiro Miyake : Candida albicans biofilm modelの作製と電解水の抗biofilm効果, Bacterial Adherence & Biofilm, Vol.10, 30-35, Jan. 1996.

Report:

1.	Kazumi Ozaki, Yasuhiko Shirayama, Tetsuo Ichikawa, Miwa Matsuyama, Yasuhiro Hamada, Shinsuke Katoh, 濱田邦美, Teruyoshi Kageji, 藤原真治, Shizuko Yanagisawa, Akari Watanabe, Mariko Seyama and Yuko Takeuchi : 中山間地域の通いの場におけるオーラルフレイル予防対策を起点とした地域住民の包括的支援に関する調査研究事業∼``見える化''・``つなぐ化''プロジェクト∼, 令和2年度厚生労働省老人保健事業推進費等補助金(老人保健健康増進等事業) 報告書, 1-98, Mar. 2021. (Keyword) ICT / オーラルフレイル / 高齢者サロン
2.	Kazumi Ozaki, Yasuhiko Shirayama, Tetsuo Ichikawa, Miwa Matsuyama, Yasuhiro Hamada, Shinsuke Katoh, 濵田邦美, Teruyoshi Kageji, 藤原真治, Shizuko Yanagisawa, Natsumi Fujiwara and Yuko Takeuchi : 令和元年度老人保健事業推進費等補助金(老人保健健康増進等事業)中山間地域における地域住民との連携によるオーラルフレイル予防のためのICT利活用の強化・進展に関する調査研究事業「とくしま助INTプロジェクト」報告書, 1-94, Mar. 2020.
3.	Kazumi Ozaki, Yasuhiko Shirayama, Shinsuke Katoh, Tetsuo Ichikawa, Yasuhiro Hamada, Shizuko Yanagisawa, Natsumi Fujiwara and Yuko Takeuchi : 平成30年度老人保健事業推進費等補助金(老人保健健康増進等事業)中山間地域におけるICT利活用によるフレイル・オーラルフレイル予防のためのベストプラクティス確立・普及に関する調査研究事業「阿波なかつむぎプロジェクト」報告書, 1-92, Mar. 2019.
4.	Yasuhiko Shirayama, Kazumi Ozaki, Shinsuke Katoh, Tetsuo Ichikawa, Saori Iwamoto, Shinji Nagahiro, Shizuko Yanagisawa and Natsumi Fujiwara : 「那賀イ∼と，つながる・みまもるプロジェクト」報告書, 平成29年度老人保健事業推進費等補助金中山間地域の地域包括ケアシステム構築における食支援連携促進に資するICT利活用に関する調査研究事業「那賀イーと,つながる・みまもるプロジェクト」報告書, 1-86, Mar. 2018.
5.	Toshiyuki Suge, Naoto Noguchi, Takashi Matsuo, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 日本大学松戸歯学部臨床実習視察報告, Shikoku Dental Research, Vol.26, No.2, 81-89, Tokushima, Feb. 2014. (Tokushima University Institutional Repository) ● Metadata: 109848 (Tokushima University Institutional Repository: 109848)
6.	Keiji Oishi, 竹内裕久, Takashi Matsuo, Katsuhiko Yoshimoto and Tetsuo Ichikawa : 広島大学歯学部臨床実習視察報告, Shikoku Dental Research, Vol.26, No.2, 71-79, Feb. 2014. (Tokushima University Institutional Repository) ● Metadata: 109847 (Tokushima University Institutional Repository: 109847)
7.	Tetsuo Ichikawa, Takafumi Noma, Keiko Miyoshi, Keisuke Nishigawa, Noriko Mizusawa, Miwa Matsuyama, Hiroshi Yoshimura and Maki Hosoki : 連携機能を活用した口腔からQOL向上を目指す研究報告書, 連携機能を活用した口腔からQOL向上を目指す研究報告書, 1-67, 2012.
8.	Yutaka Sato and Tetsuo Ichikawa : (講演要約，翻訳)韓国ソウル大学歯学部における大卒者向け歯学教育課程(デンタルスクール化) Dong-Seok Nahm, 平成18-19年度文部科学省「魅力ある大学院教育」イニシアティブ歯科専門医教育の指導者養成プログラム報告書, 54-55, Tokushima, Mar. 2008. (Summary) 2002年1月，韓国政府の教育人的資源部が新しい医歯学教育課程のための指針を打ち出した．指針の中で政府は，現在まで行われている大学での歯学教育課程に加えて，新たに大卒者向け歯学教育課程を新設し，さまざまな分野の教育を受けた幅広い人材を歯学部に迎えることを決めた．各大学はこの指針を受け，2009年までに従来型教育課程と大卒者向け教育課程のどちらかを選択する． 2004年以前の従来型教育課程は，自然，社会科学を含む2年の教養課程，および基礎医学，臨床歯学を学ぶ4年の専門課程という構成であった．しかし，世界の歯学教育が変化していく中，韓国社会からも，広い見識を持ち，未来の健康の担い手となりうる歯科医師を育てようという声が高まった．そこで先に示した指針の下，歯学部のある全国11大学のうち，ソウル大学を含む4国立大学および1私立大学が，大卒者向け教育課程を2005年に開始した．本稿では，ソウル大学における大卒者向け歯学教育課程について述べる． (Keyword) 歯学教育 / 韓国 / デンタルスクール / カリキュラム

Patent:

1.	Eiichi Honda, Teruaki Ito, Yohsuke Kinouchi, Midori Yoshida and Tetsuo Ichikawa : 照明装置及び照明方法, 2016-073116 (Mar. 2016), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Building a health maintenance and improvement cycle for the elderly using a new IKIGAI evaluation index (Project/Area Number: 23K09531 )
Development of a new oral function training method focusing on human brain functions and its effectiveness (Project/Area Number: 23K09253 )
感覚機能と社会的繋がりに着目したフレイル発症・進展モデルと口腔機能管理戦略の確立 (Project/Area Number: 23K24540 )
傾斜地で農作業が高齢者の心身機能と健康寿命に及ぼす影響に関する研究 (Project/Area Number: 20K10338 )
下顎無歯顎に応用する軟質リライン材の臨床効果 -多施設ランダム化比較試験- (Project/Area Number: 20K10062 )
Development of a new method for simultaneous estimation of saliva secretion and masticatory efficiency using odor detection (Project/Area Number: 20K10037 )
Automatic border modeling of denture using artificial intelligence and air-assisted intraoral scanner (Project/Area Number: 19K22720 )
地域包括ケアシステムにおける歯科・福祉連携の定式化に向けたプログラムの構築 (Project/Area Number: 19K10227 )
Modeling and demonstrating the usefulness of a "living support system development project" in a comprehensive community care system (Project/Area Number: 18K09943 )
Innovation and application of transcutaneous Electrical Stimulation Device to improve age-related dry mouth / xerostomia (Project/Area Number: 18K09701 )
Elucidation of the relationship between brain function and occlusion- mastication-nutrition, and development of prosthodontic health management model (Project/Area Number: 18H02993 )
Development of saliva secretion test by Alchole odor-detction (STAOD) (Project/Area Number: 17K19762 )
Development and construction of a database for maintenance and management of oral functions in the elderly (Project/Area Number: 17K11754 )
Development of functional membrane for dental implant treatment (Project/Area Number: 16K11598 )
Development of a program to improve oral function maintenance and management skills among nursing home caregivers based on cognitive science (Project/Area Number: 16K11596 )
Idfentification of biomarkers for theprediction of oral frailty and Prosthodontic planning using the markers (Project/Area Number: 15K15709 )
Formulation of decision-making on persons with higher brain dysfunction (Project/Area Number: 15K01370 )
Analysis of molecular mechanisms of sensitization phase to develop effective treatments against metal allergy (Project/Area Number: 15H05028 )
デジタル技術を用いたより衛生的で治療負荷の少ない全部床義歯治療法の実用化 (Project/Area Number: 26462922 )
The elucidation of miRNAs in response to stress stimuli and its secretion into an oral cavity (Project/Area Number: 25670822 )
Study on effectiveness of denture adhesives: Multi center prospective clinical trial for clinical guidline (Project/Area Number: 24390439 )
Quality of mastication: Approach from food phenotype, sensation, and brain activity (Project/Area Number: 24390436 )
Development of digital impression and biteregistration system for totally edentulous (Project/Area Number: 23659901 )
Causes of the delay in efficacies of oral care during chronic phase (Project/Area Number: 23592853 )
顎機能制御系はあるか、記憶・認知・全身機能との関係はあるか:fMRIを用いた証明 (Project/Area Number: 21659446 )
The analysis of Ni allergy development and the therapeutic strategy in prosthodontics (Project/Area Number: 21390518 )
Development of new and safer denture cleanser with Erythritol (Project/Area Number: 20592271 )
ストレスDNAチップを用いた咀嚼障害、顎関節症、口腔顎顔面慢性疼痛の病態評価 (Project/Area Number: 19659509 )
Studies on Oral Implant Surgery Support System towards Patient-Centered Health Care (Project/Area Number: 18300170 )
インプラント周囲炎に対する周囲骨再生療法の開発 (Project/Area Number: 17659611 )
The development of taylor-made materials with biomedical function. (Project/Area Number: 17390521 )
歯科用金属の溶出と局所免疫クロストークの相関性に関する研究 (Project/Area Number: 14657504 )
Effect of physical factors on osseointegration (Project/Area Number: 14370637 )
The Assessment of Swallowing using Tongue and Laryngeal Movements - Influence of the Factor in Food - (Project/Area Number: 13672041 )
Quality assessment of bone and surface modification of dental implant (Project/Area Number: 12470421 )
The influence of the biofilm in the oral cavity to the dental implants (Project/Area Number: 11671937 )
Influence of osteoporosis and aging in the bone structure to biomaterial (Project/Area Number: 10671831 )
Three Dimensional examination of Bone-Implant interface using various implant materials (Project/Area Number: 08457530 )
Influence of the aging on the tongue function and tongue shape, and the rlationship to the eating (Project/Area Number: 07838022 )
Enhance of bone-implant interface using membrane techinique (Project/Area Number: 07557275 )
Development of Osteoinductive Biomaterials (Purification of Osteoinductive Factor and Its Basic Research for Clinical Application) (Project/Area Number: 01480451 )
Search by Researcher Number (90193432)

Professor Emeritus / Professor : Ichikawa, Tetsuo

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)