用清晰的对齐器与不同引方法相结合处理的尾大脱稳的三维有限元素分析
Hongyu Gao1, Liangyu Luo1, Jun Liu2
1State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
Progress in orthodontics
|December 8, 2024
概括
在口腔侧的正牙迷你植入物 (OMI) 提供了优越的前部 anchorage 和用清晰的对齐器使骨脱节. 肌底膜脊顶放置也显示出比前位置更好的结果.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料工程 生物材料工程
- 有限元分析 有限元分析
背景情况:
- 尾大移位是一种关键的正统牙科手术.
- 清晰对齐器为牙移动提供了一个不那么侵入性的替代方案.
- 研究不同的定方法对于处理效率至关重要.
研究的目的:
- 通过使用清晰的对齐器来分析大毛骨脱稳的影响.
- 为了比较各种内和间的引方法.
- 用三维有限元素方法评估治疗结果.
主要方法:
- 一个3D有限元素模型模拟了部,下,牙和牙周带.
- 测试了五组:对照组,口腔OMI,口腔OMI (内骨顶),口腔OMI (前部区域) 和II类弹性.
- 应用了1.5N的力,分析了牙位移和应力分布.
主要成果:
- 面部OMI (4组) 最小化了前部扭矩损失和最大化了骨失稳.
- 乳腺下脊椎OMI (第三组) 的效率高于前耳OMI (第二组).
- 第二类弹性钢材 (第5组) 导致前部挤出和固定损失.
结论:
- 面部的OMI提供了优越的前部定和牙脱稳效率.
- 乳头下脊的OMI比放置在前耳之间的OMI更有效.
- 有限元法对于分析正力学是有价值的.
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