Biomechanical analysis of advance movement by bilateral sagittal split ramus osteotomy

• Material Type: 博士論文
• Title: Biomechanical analysis of advance movement by bilateral sagittal split ramus osteotomy
• Author/Editor: 森本, 伊視
• Author Heading: 森本, 伊視
• Alternative Title: 両側下顎枝矢状分割術の前方移動時における生体力学的解析
• Degree grantor/type: 大阪歯科大学
• Date Granted: 2021-03-05
• Dissertation Number: 甲第906号
• Degree Type: 博士（歯学）
• Text Language Code: eng
• Subject Heading: Sagittal split ramus osteotomy｜SSRO｜Three-dimensional finite element method｜3D-FEM｜Biomechanical analysis
• Target Audience: 一般
• Note (General): Sagittal split ramus osteotomy (SSRO) is widely used as an excellent surgical technique with a wide range of indications for jaw deformities. However, regression after advancement of the mandible is considered problematic compared with that after setback. We constructed models of 5- and 10-mm advancement after SSRO, and performed mechanical analysis of changes over time in stress loading employing the 3-dimensional finite element method. Models of the mandible were prepared after SSRO using titanium plates and screws as osteosynthesis material after 5- and 10-mm advancement of the distal bone fragment. Occlusal force and the muscular strength of the closing muscles were applied to each model. The displacement was greater in the 10-mm model than in the 5-mm model with conventional and locking screw fixation, whereas it was smaller in the model with locking plate fixation than in that with conventional plate fixation. In addition, it was smaller in the model with 2-plate fixation than in the one with 1-plate fixation. 2-plate fixation with locking screws may be a useful bone fragment fixation method because the amount of advancement increases, leading to postoperative stability.; 2020年度
• Access Restrictions: インターネット公開
• Rights (production): CC BY-NC-ND
• Data Provider (Database): 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
• Original Data Provider (Database): 大阪歯科大学 : 大阪歯科大学学術リポジトリ

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