Tokushima University / Educator and Researcher Directory --- Oku, Yuri

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Tokushima University ⟩ University Hospital ⟩ 先端歯科医療開発研究プロジェクト ⟩
Tokushima University ⟩ University Hospital ⟩ Clinical Division ⟩ Department of General Dentistry ⟩ Oral and Maxillofacial Radiology ⟩
Tokushima University ⟩ Faculty of Dentistry ⟩ Course in Dentistry ⟩ Clinical Dentistry for Oral Health and Surgery ⟩ Oral and Maxillofacial Radiology ⟩

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Research

Personal Web Page

https://researchmap.jp/oku.yuuri (researchmap)

https://orcid.org/0009-0003-4381-9403 (ORCID)

Field of Study

○	Life sciences [Community dentistry]
○	Life sciences [Prosthodontics]

Subject of Study

Book / Paper

(See https://researchmap.jp/oku.yuuri (researchmap) for Published Book / Papers / Presentations.)

Academic Paper (Judged Full Paper):

1.	Yuri Oku, Hideki Suito, Keiko Fujimoto, Tetsuo Ichikawa and Kan Nagao : Relationship between vertical hyoid bone position and swallowing function in older adults., Journal of Oral Science, 67, 2, 91-95, 2025. (Summary) JOF may affect swallowing function in older males with lowered hyoid bone position. (Tokushima University Institutional Repository) ● Metadata: 2013232 (Link to Publication Site) ● Publication site (DOI): 10.2334/josnusd.24-0409 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 40074361 ● Search Scopus @ Elsevier (PMID): 40074361 ● Search Scopus @ Elsevier (DOI): 10.2334/josnusd.24-0409 (Tokushima University Institutional Repository: 2013232, DOI: 10.2334/josnusd.24-0409, PubMed: 40074361)
2.	Hideki Suito, Hozumi Yoshihara, Naoki Maeda, Ryosuke Kasai, Tadashi Inoue, Masafumi Amano, Yuri Oku, Keiko Fujimoto and Kan Nagao : Evaluation of the effect of reducing metal artifacts in multi-detector CT imaging of zirconia and titanium implants, Oral Radiology, 41, 3, 421-429, 2025. (Summary) Zirconia oral implants produce larger artifacts on computed tomography (CT) compared to titanium oral implants. This study aimed to compare the effectiveness of metal artifact reduction (MAR) software and dual-energy (DE) methods, which are used in multi-detector CT (MDCT) to reduce the artifacts produced by titanium and zirconia oral implants. Oral implants were placed in the lower right second premolar and second molar regions of an acrylic mandible model and evaluated using MDCT. For MAR, Single Energy Metal Artifact Reaction (SEMAR) images were obtained, and for DE, images were obtained at 135 keV. The evaluation was based on 21 regions of interest (ROIs) with sides of 2.8 mm, set at 15, 25, and 35 mm from the center (the lower-right first premolar), with 65°, 90°, 115°, and 145° angles set on the buccal and lingual sides. The evaluation was based on an Artifact Index (AI). The lingual aspect of the AI tended to be larger compared to the buccal aspect, regardless of the image-processing method. In addition, the SEMAR method tended to have a greater artifact reduction effect than the DE method. The distortion of the mandibular model and occurrence of new artifacts were confirmed using SEMAR. SEMAR had higher artifact reduction effects on metal artifacts than the DE method. Although SEMAR and dual-energy methods can effectively reduce metal artifacts, they also cause false images and areas that cannot be observed. Therefore, diagnostic and treatment planning, including imaging, is essential before artifact reduction processing. (Keyword) Computed tomography / Dual-energy / Metal artifact reduction / Titanium implant / Zirconia implant (Link to Publication Site) ● Publication site (DOI): 10.1007/s11282-025-00814-5 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 40038165 ● Summary page in Scopus @ Elsevier: 2-s2.0-86000292564 (DOI: 10.1007/s11282-025-00814-5, PubMed: 40038165, Elsevier: Scopus)

Proceeding of Domestic Conference:

1.	Kan Nagao, Yuri Oku, Keiko Fujimoto, Hideki Suito, 田上義弘, Megumi Watanabe, Takaharu Goto, Yuki Iwawaki, Takashi Matsuda and Takahiro Kishimoto : 栄養指導と口腔リハビリテーションが口腔機能，食品多様性，栄養状態に及ぼす影響, 日本老年歯科医学会第36回学術大会, Jun. 2025.
2.	Yuri Oku, Hideki Suito, Keiko Fujimoto, 市場裕康, 萬好哲也 and Kan Nagao : 壮年期から高齢期における嚥下機能と舌骨上筋群，舌骨の位置に関する検討, 日本補綴歯科学会第 134 回学術大会, May 2025.
3.	Hideki Suito, Hozumi Yoshihara, Naoki Maeda, Naito Kurio, Keiko Aota, Yuri Oku, Keiko Fujimoto and Kan Nagao : CBCTを用いた下顎埋伏智歯症例の臼後管・臼後枝の出現率, 日本歯科放射線学会第5回秋季学術大会, Oct. 2024.
4.	田上義弘, Keiko Fujimoto, Hideki Suito, Takahiro Kishimoto, Yuki Iwawaki, Takaharu Goto, Megumi Watanabe, Yuri Oku, Kan Nagao and Tetsuo Ichikawa : フレイルに関連する口腔機能評価における音声解析の有用性, 令和6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. 2024.
5.	Yuri Oku, Keiko Fujimoto, Hideki Suito and Kan Nagao : 超音波診断装置を用いた舌骨上筋群と口腔機能・嚥下機能との関連, 日本摂食嚥下リハビリテーション学会第29回学術大会, Sep. 2023.

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

Search by Researcher Number (31020117)