徳島大学 / 教育研究者総覧 --- 米倉和秀

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研究活動

専門分野

研究テーマ

著書・論文

著書:

1.	吉山昌宏, 宮崎真至, 須崎明, 向井義晴, 保坂啓一, 米倉和秀, 伊田百美香, 高木仲人, 大原直子 : 超速でわかる象牙質知覚過敏 Dr.とDHのための最新知識と製品情報, 2024年3月.
2.	保坂啓一, 米倉和秀 : 保存修復学専門用語集(第3版), 医歯薬出版株式会社, 2023年3月.
3.	保坂啓一, 畑山貴志, 米倉和秀 : 手に取るようにわかるコンポジットレジン修復のメソッド, 医歯薬出版株式会社, 2022年3月.

学術論文(審査論文):

1.	IUCHI Tomoki, Kazuhide Yonekura, Yumika Ida, MOTOYAMA Yutaro, IKEDA Masaomi, Kenichi Hamada, NAKAJIMA Masatoshi and Keiichi Hosaka : The effect of HEMA and 10-MDP in the bonding agent of a two-step self-etch system on water sorption, elastic modulus, and microtensile bond strength to dentin, Dental Materials Journal, 2025.
2.	Yumika Ida, Kazuhide Yonekura, Sho Obayashi, DIANA FITRI MUSLIMAH, Yuichi Hasegawa, Masatoshi Nakajima and Keiichi Hosaka : A Digitally Enhanced Transparent Silicone Index for the Direct Composite Resin Injection Technique in Premolar Replacement: A Case Report, Operative Dentistry, Endodontology and Periodontology, Vol.4, No.1, 62-68, 2024. (出版サイトへのリンク) ● Publication site (DOI): 10.11471/odep.2024-007 (文献検索サイトへのリンク) ● Search Scopus @ Elsevier (DOI): 10.11471/odep.2024-007 (DOI: 10.11471/odep.2024-007)
3.	Hiroki Ishihara, Kazuhide Yonekura, Masaomi Ikeda, Go Inoue, Masatoshi Nakajima, Yasushi Shimada and Keiichi Hosaka : Comparative bonding performance of coronal dentin disks and CAD/CAM resin composite disks for biological restoration: The impact of resin-coating technique., Dental Materials Journal, Vol.43, No.2, 303-311, 2024. (要約) This study evaluated the bonding performance of coronal dentin disks, designed for biological restoration, and CAD/CAM resin composite disks when bonded to flat dentin surfaces using dual-cure resin cements, with and without a resin-coating (RC) technique. Three distinct groups were established within the non-RC group, each using one of the two types of resin cements in a self-adhesive mode: one-step self-etch adhesive (1-SEA) without light-cure, 1-SEA with light-cure, and a separate group using an alternate cement. Within the RC group, a subgroup was established for each cement. The microtensile bond strength (μTBS) of the disk-dentin beam was tested after 0 and 10,000 thermocycles in a 5°C/55°C. No significant μTBS difference was observed among the non-RC groups. However, when using RC, the μTBSs of coronal dentin disks significantly exceeded those of CAD/CAM resin composite disks. Thermocycle aging did not affect μTBS in any of the bonding methods, except in self-adhesive mode. (出版サイトへのリンク) ● Publication site (DOI): 10.4012/dmj.2023-229 (文献検索サイトへのリンク) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 38447979 ● Search Scopus @ Elsevier (PMID): 38447979 ● Search Scopus @ Elsevier (DOI): 10.4012/dmj.2023-229 (DOI: 10.4012/dmj.2023-229, PubMed: 38447979)
4.	Keiichi Hosaka, Antonin Tichy, Monica Yamauti, Keiichiro Watanabe, Kohei Kamoi, Kazuhide Yonekura, Richard Foxton and Masatoshi Nakajima : Digitally Guided Direct Composite Injection Technique with a Bi-layer Clear Mini-Index for the Management of Extensive Occlusal Caries in a Pediatric Patient: A Case Report., The Journal of Adhesive Dentistry, Vol.25, No.1, 211-218, 2023. (要約) The injection technique with a bi-layer clear mini-index accurately translated the digital wax-ups into large, final restorations. Precise morphology and shortened chair time enhanced patient satisfaction, but at the expense of multiple visits. (徳島大学機関リポジトリ) ● Metadata: 118656 (出版サイトへのリンク) ● Publication site (DOI): 10.3290/j.jad.b4515527 (文献検索サイトへのリンク) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37843503 ● Search Scopus @ Elsevier (PMID): 37843503 ● Search Scopus @ Elsevier (DOI): 10.3290/j.jad.b4515527 (徳島大学機関リポジトリ: 118656, DOI: 10.3290/j.jad.b4515527, PubMed: 37843503)
5.	Keiichiro Watanabe, A Tichy, Kouhei Kamoi, Masahiro Hiasa, Kazuhide Yonekura, Eiji Tanaka, M Nakajima and Keiichi Hosaka : Restoration of a Microdont Using the Resin Composite Injection Technique With a Fully Digital Workflow: A Flexible 3D-printed Index With a Holding Clip., Operative Dentistry, 2023. (要約) Direct composite restorations are accepted as a treatment option for microdontia, which is a relatively prevalent condition that poses esthetic concerns. While free-hand composite placement is technique-sensitive and time-consuming, the resin composite injection technique is more straightforward and predictable. A fully digital workflow has been recently introduced, but the 3D-printed resin index is rigid and challenged by undercuts, as opposed to the silicone index. This case report presents a flexible 3D-printed resin index, which can accurately transfer the digitally simulated functional and esthetic form to the final restoration. In addition, a rigid holding clip was designed to stabilize the flexible index. (出版サイトへのリンク) ● Publication site (DOI): 10.2341/23-007 (文献検索サイトへのリンク) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37503684 ● Search Scopus @ Elsevier (PMID): 37503684 ● Search Scopus @ Elsevier (DOI): 10.2341/23-007 (DOI: 10.2341/23-007, PubMed: 37503684)
6.	S Wahyuni Dwiandhany, Ahmed Abdou, Antonin Tichy, Kazuhide Yonekura, Masaomi Ikeda, Keiichi Hosaka, Junji Tagami and Masatoshi Nakajima : Additive effects of touch-activated polymerization and extended irradiation time on bonding of light-activated adhesives to root canal dentin., The Journal of Prosthetic Dentistry, 2022. (要約) The purpose of this in vitro study was to investigate the effect of touch-polymerization activators and extended light-irradiation time on the microtensile bond strength (μTBS) of light-activated adhesives. (出版サイトへのリンク) ● Publication site (DOI): 10.1016/j.prosdent.2020.11.021 (文献検索サイトへのリンク) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33431177 ● Search Scopus @ Elsevier (PMID): 33431177 ● Search Scopus @ Elsevier (DOI): 10.1016/j.prosdent.2020.11.021 (DOI: 10.1016/j.prosdent.2020.11.021, PubMed: 33431177)
7.	Kittisak Sanon, Antonin Tichy, Ornnicha Thanatvarakorn, Taweesak Prasansuttiporn, Kazuhide Yonekura, Keiichi Hosaka, Masayuki Otsuki and Masatoshi Nakajima : Application of Sulfinate Agent in Conjunction with HOCl Smear -Layer Deproteinization Improves Dentin Bonding Durability of One-step Self-etch Adhesives., The Journal of Adhesive Dentistry, Vol.24, No.1, 223-232, 2022. (要約) To evaluate the effect of a sulfinate agent on the bonding durability of one-step self-etch adhesives (1-SEAs) to smear-layer-covered dentin deproteinized with hypochlorous acid (HOCl). Human coronal dentin disks with a standardized smear layer were deproteinized with 100 ppm HOCl solution for 0 s (control), 15 s or 30 s. After rinsing with water for 30 s and air drying, half of the specimens were treated with a sulfinate agent (Scotchbond Universal Dual Cure Activator; SDA) prior to the application of a 1-SEA (Bond Force II [Tokuyama Dental] or Clearfil Universal Bond Quick [Kuraray Noritake]). Microtensile bond strength (µTBS) was measured after 24 h or 10,000 thermal cycles (TC). The data were analyzed by three-way ANOVA with Tukey's post-hoc tests and t-tests at the 0.05 significance level. The 24-h µTBS of both adhesives increased statistically significantly with the HOCl pretreatment for 15 s or 30 s (p < 0.05), but it was not statistically significantly affected by the application of SDA (p > 0.05). However, after TC, the groups treated with the combination of HOCl and SDA maintained their µTBS (p > 0.05), as opposed to untreated dentin and dentin treated with either HOCl or SDA , whose µTBS decreased significantly (p < 0.05). The application of the sulfinate agent did not statistically significantly affect the immediate bond strength of 1-SEAs, and it could not prevent a significant decrease in the bond strength to untreated dentin after thermocycling. However, the sulfinate agent significantly improved the bonding durability of 1-SEAs to HOCl smear -layer deproteinized dentin. (キーワード) Adhesives / Dental Bonding / Dental Cements / Dentin / Dentin-Bonding Agents / Humans / Hypochlorous Acid / Materials Testing / Resin Cements / Smear Layer / Tensile Strength (出版サイトへのリンク) ● Publication site (DOI): 10.3290/j.jad.b2920099 (文献検索サイトへのリンク) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35418011 ● Search Scopus @ Elsevier (PMID): 35418011 ● Search Scopus @ Elsevier (DOI): 10.3290/j.jad.b2920099 (DOI: 10.3290/j.jad.b2920099, PubMed: 35418011)
8.	保坂啓一, 米倉和秀, 中島正俊, 田上順次, 島田康史, 吉山昌宏 : Advanced MIデンティストリー時代に向かって~新しい接着再生歯科治療~, 象牙質歯髄治療学会雑誌, Vol.2, No.1, 1-7, 2022年. (文献検索サイトへのリンク) ● CiNii @ 国立情報学研究所 (CRID): 1010294643595988736 (CiNii: 1010294643595988736)
9.	Yorichika Shioya, Antonin Tichy, Kazuhide Yonekura, Mayu Hasegawa, Takashi Hatayama, Masaomi Ikeda, Junji Tagami, Masatoshi Nakajima and Keiichi Hosaka : Sodium p-Toluenesulfinate Enhances the Bonding Durability of Universal Adhesives on Deproteinized Eroded Dentin, Polymers, Vol.13, No.22, 3901, 2021. (徳島大学機関リポジトリ) ● Metadata: 116704 (出版サイトへのリンク) ● Publication site (DOI): 10.3390/polym13223901 (文献検索サイトへのリンク) ● Search Scopus @ Elsevier (DOI): 10.3390/polym13223901 (徳島大学機関リポジトリ: 116704, DOI: 10.3390/polym13223901)

総説・解説:

1.	武川大輔, 米倉和秀, 蔵本瞳, 伊田百美香, 細川由樹, 細川育子, 細川義隆, 菅俊行, 中西正, 保坂啓一 : 2級コンポジットレジン修復のキーポイント, Journal of Oral Health and Biosciences, Vol.36, No.1, 8-12, 2023年9月. (キーワード) 歯科医療 (dental care) (徳島大学機関リポジトリ) ● Metadata: 118637 (出版サイトへのリンク) ● Publication site (DOI): 10.20738/johb.36.1_8 (文献検索サイトへのリンク) ● CiNii @ 国立情報学研究所 (CRID): 1390016062665364224 ● Search Scopus @ Elsevier (DOI): 10.20738/johb.36.1_8 (徳島大学機関リポジトリ: 118637, DOI: 10.20738/johb.36.1_8, CiNii: 1390016062665364224)
2.	米倉和秀, 鴨居浩平, 三枝克啓, 保坂啓一 : デジタル技術を融合した次世代CR修復 : クオリティの高い修復を効率化するDigitally-guided Composite Injection Technique(9)非う蝕性歯頸部欠損のCR修復, 日本歯科評論, Vol.82, No.9, 10-13, 2022年9月. (文献検索サイトへのリンク) ● CiNii @ 国立情報学研究所 (CRID): 1520856893060832256 (CiNii: 1520856893060832256)
3.	井内智貴, 米倉和秀, 鴨居浩平, 保坂啓一 : デジタル技術を融合した次世代CR修復 : クオリティの高い修復を効率化するDigitally-guided Composite Injection Technique(7)臼歯部隣接面の修復, 日本歯科評論, Vol.82, No.7, 10-13, 2022年7月. (文献検索サイトへのリンク) ● CiNii @ 国立情報学研究所 (CRID): 1520292706226344832 (CiNii: 1520292706226344832)

国際会議:

1.	Iuchi Tomoki, Kazuhide Yonekura, Yumika Ida, Motoyama Yutaro, Ikeda Masaomi, Kenichi Hamada, Nakajima Masatoshi and Keiichi Hosaka : Are HEMA and 10-MDP necessary in the bonding agent of a 2-SEA?, The 7th International Congress on Adhesive Dentistry, Jun. 2022.
2.	Kazuhide Yonekura, Yumika Ida, Yu Tokizane, Taka-aki Yano, Iuchi Tomoki, Takeshi Yasui and Keiichi Hosaka : Nondestructive observation of adhesively cemented interface between dentin and indirect composite resin disks using a novel terahertz pulsed imaging technique, The 7th International Congress on Adhesive Dentistry, Jun. 2022.

国内講演発表:

1.	内海雄太, 川野沙織, 松木優承, 渡邉佳一郎, 大毛健一郎, 伊田百美香, 米倉和秀, 田中栄二, 保坂啓一 : 上顎側切歯1歯欠損に対して，デジタルワークフローを活用したインジェクションテクニックにより，2層のダイレクトボンディングブリッジを行った審美修復症例, 日本歯科審美学会, 2023年12月.
2.	内海雄太, 松木優承, 渡邉佳一郎, 川野沙織, 井内智貴, 大毛健一郎, 伊田百美香, 米倉和秀, 保坂啓一 : 矯正歯科治療後，デジタルワークフローを活用したコンポジットレジンインジェクションテクニックにより犬歯誘導を獲得した1症例, 日本歯科保存学会 2023年秋季学術大会, 2023年11月.
3.	椋由理子, 工藤保誠, 伊田百美香, 米倉和秀, 中島正俊, 保坂啓一 : 歯根膜繊維芽細胞に対するコンポジットレジンの細胞毒性の検討, 日本歯科保存学会 2023年秋季学術大会, 2023年11月.
4.	松木優承, 伊田百美香, 井内智貴, 内海雄太, 米倉和秀, 池田正臣, 保坂啓一 : 新規ワンステップユニバーサルボンドの象牙質接着性と吸水性および機械的強度の評価, 日本歯科保存学会 2023年秋季学術大会, 2023年11月.
5.	石原洋樹, 米倉和秀, 池田正臣, 中島正俊, 大槻昌幸, 島田康史, 保坂啓一 : 各種レジンセメントによる，歯冠象牙質ディスクおよびCAD/CAMコンポジットレジンディスクに対する象牙質微小引張り強さ, 日本歯科保存学会2023年春季学術大会, 2023年6月.
6.	井内智貴, 米倉和秀, 伊田百美香, 元山祐太郎, 池田正臣, 浜田賢一, 中島正俊, 保坂啓一 : 2ステップセルフエッチングシステムのボンディング材の接着耐久性に及ぼすHEMAと10-MDPの影響についての検討, 第4回象牙質歯髄治療学会, 2023年5月.
7.	伊田百美香, 米倉和秀, 井内智貴, Diana Fitri Muslimah, 池田正臣, 保坂啓一 : インジェクションモールディング法におけるクリアインデックス厚みがワンステップ接着システムの象牙質接着性能に及ぼす影響, 日本歯科保存学会 2022年秋季学術大会, 2022年11月.
8.	米倉和秀, 矢野隆章, 時実悠, 井内智貴, 安井武史, 保坂啓一 : テラヘルツ波イメージング法を用いた歯科保存修復領域における非破壊観察(第1報), 四国歯学会第58回例会, 2021年11月.

科学研究費補助金 (KAKEN Grants Database @ NII.ac.jp)

超小型THzチップを用いた高次メカノセンシングコンポジットレジン修復法の創出 (研究課題/領域番号: 23K09202 )
新規イメージング技術による歯科診断の革命 (研究課題/領域番号: 21K16988 )
研究者番号（90881540）による検索