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

Persistent ID (NDL): info:ndljp/pid/12070902

Material type: 博士論文

Author: Hirai, Yuzoほか

Publisher: The Japanese Society for Dental Materials and Devices

Publication date: 2021-09-25

Material Format: Digital

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Name of awarding university/degree: 徳島大学,博士（歯学）

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Note (General)：: We aimed to elucidate stress distribution in miniscrews and the surrounding bone when miniscrews inserted at different depths were implanted verticall...

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Material Type: 博士論文
ISSN: 1881-1361
Title: Influence of insertion depth on stress distribution in orthodontic miniscrew and the surrounding bone by finite element analysis
Volume: 40 5
Author/Editor: Hirai, Yuzo
Watanabe, Keiichiro
Deguchi, Toru
Ueda, Kanji
Hamada, Kenichi
Tanaka, Eiji
Author Heading: Hirai, Yuzo
Watanabe, Keiichiro
Deguchi, Toru
Ueda, Kanji
Hamada, Kenichi
Tanaka, Eiji
Publication, Distribution, etc.: The Japanese Society for Dental Materials and Devices
Publication Date: 2021-09-25
Publication Date (W3CDTF): 2021-09-25
Alternative Title: 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
Periodical title: Dental Materials Journal
Degree grantor/type: 徳島大学
Date Granted: 2022-01-13
Date Granted (W3CDTF): 2022-01-13
Dissertation Number: 甲第3567号
Degree Type: 博士（歯学）
Conferring No. (Dissertation): 甲第3567号
Text Language Code: eng
Subject Heading: Finite element analysis
Orthodontic miniscrew
Insertion depth
Insertion angle
Target Audience: 一般
Note (General): 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.
DOI: info:doi/10.4012/dmj.2020-400
https://doi.org/info:doi/10.4012/dmj.2020-400
Persistent ID (NDL): info:ndljp/pid/12070902
https://dl.ndl.go.jp/pid/12070902
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2022-02-06T04:33:19+09:00
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
Availability of remote photoduplication service: 可
Periodical Title (URI): http://repo.lib.tokushima-u.ac.jp/116714
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
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