Influence of insertion depth on stress distribution in orthodontic miniscrew and the surrounding bone by finite element analysis

• 資料種別: 博士論文
• タイトル: Influence of insertion depth on stress distribution in orthodontic miniscrew and the surrounding bone by finite element analysis
• 著者・編者: Hirai, Yuzo; Watanabe, Keiichiro; Deguchi, Toru; Ueda, Kanji; Hamada, Kenichi; Tanaka, Eiji
• 著者標目: Hirai, Yuzo; Watanabe, Keiichiro; Deguchi, Toru; Ueda, Kanji; Hamada, Kenichi; Tanaka, Eiji
• 出版事項: The Japanese Society for Dental Materials and Devices
• 出版年月日等: 2021-09-25
• 出版年（W3CDTF）: 2021-09-25
• 並列タイトル等: 歯科矯正用アンカースクリューおよび周囲骨の応力分布に及ぼす埋入深さの影響 : 有限要素法による解析
• タイトル（掲載誌）: Dental Materials Journal
• 巻号年月日等（掲載誌）: 40 5
• 掲載巻: 40
• 掲載号: 5
• 掲載ページ: 1270-1276
• ISSN（掲載誌）: ISSN : 1881-1361; ISSN : 0287-4547
• 授与機関名: 徳島大学
• 授与年月日: 2022-01-13
• 報告番号: 甲第3567号
• 学位: 博士（歯学）
• 本文の言語コード: eng
• 件名標目: Finite element analysis; Orthodontic miniscrew; Insertion depth; Insertion angle
• 対象利用者: 一般
• 一般注記: We aimed to elucidate stress distribution in miniscrews and the surrounding bone when miniscrews inserted at different depths were implanted vertically or obliquely. The distributions of the equivalent stress on the screw surface and the minimum principal stress in the surrounding bone were calculated using finite element models. When the miniscrews were inserted vertically and obliquely, screw head displacement, greatest equivalent stress on the miniscrew surface, and absolute value of minimum principal stresses in the surrounding bone decreased with increasing insertion depth. Stresses in the obliquely inserted miniscrew with upward traction were smaller than in other insertion conditions, irrespective of insertion depth. With the application of orthodontic force, stress distribution around the miniscrew and surrounding bone is closely related to the insertion depth and insertion angle, which mutually affect each other. In particular, the obliquely inserted miniscrew with upward traction might be the most secure against screw failure and fracture.
• 記録形式（IMT）: application/pdf
• 一次資料へのリンクURL: fulltext; http://repo.lib.tokushima-u.ac.jp/files/public/11/116714/20220128114328176078/k3567_abstract.pdf; http://repo.lib.tokushima-u.ac.jp/files/public/11/116714/20220128114328286084/k3567_review.pdf; http://repo.lib.tokushima-u.ac.jp/files/public/11/116714/20220128114328440118/k3567_fulltext.pdf
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © 2021 The Japanese Society for Dental Materials and Devices
• 関連情報（DOI）: 10.4012/dmj.2020-400
• 掲載誌（NCID）: AA10443149; https://ci.nii.ac.jp/ncid/AA10443149
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 徳島大学 : 徳島大学機関リポジトリ