| ID | 116714 |
| タイトル別表記 | 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
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| 著者 |
平井, 雄三
徳島大学大学院口腔科学教育部（口腔科学専攻）
Deguchi, Toru
The Ohio State University
Ueda, Kanji
Digital Solution Inc.
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| キーワード | Finite element analysis
Orthodontic miniscrew
Insertion depth
Insertion angle
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| 資料タイプ |
学位論文
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| 抄録 | 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.
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| 掲載誌名 |
Dental Materials Journal
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| ISSN | 18811361
02874547
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| cat書誌ID | AA10443149
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| 出版者 | The Japanese Society for Dental Materials and Devices
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| 巻 | 40
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| 号 | 5
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| 開始ページ | 1270
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| 終了ページ | 1276
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| 発行日 | 2021-09-25
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| 備考 | 内容要旨・審査要旨・論文本文の公開
本論文は, 著者Hiroko Satoの学位論文として提出され, 学位審査・授与の対象となっている。 |
| 権利情報 | © 2021 The Japanese Society for Dental Materials and Devices
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| EDB ID | |
| 出版社版DOI | |
| 出版社版URL | |
| フルテキストファイル | |
| 言語 |
eng
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| 著者版フラグ |
博士論文全文を含む
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| 文科省報告番号 | 甲第3567号
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| 学位記番号 | 甲口第475号
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| 学位授与年月日 | 2022-01-13
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| 学位名 |
博士（歯学）
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| 学位授与機関 |
徳島大学
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| 部局 |
歯学系
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