| Item type |
学位論文 / Thesis or Dissertation(1) |
| 公開日 |
2021-04-23 |
| 本文言語 |
|
|
言語 |
eng |
| タイトル |
|
|
タイトル |
Biomechanical analysis of advance movement by bilateral sagittal split ramus osteotomy |
| 著者 |
森本, 伊視
Morimoto, Yoshimi
|
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Sagittal split ramus osteotomy｜SSRO｜Three-dimensional finite element method｜3D-FEM｜Biomechanical analysis |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_db06 |
|
資源タイプ |
doctoral thesis |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
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. |
| 学位名 |
|
|
学位名 |
博士（歯学） |
| 学位授与機関 |
|
|
|
学位授与機関識別子Scheme |
kakenhi |
|
|
学位授与機関識別子 |
34408 |
|
|
学位授与機関名 |
大阪歯科大学 |
| 学位授与年月日 |
|
|
学位授与年月日 |
2021-03-05 |
| 学位授与番号 |
|
|
学位授与番号 |
甲第906号 |
学位論文 (1.0 MB)
