关于不同远端对齐器设计对大前偏移的影响的三维有限元分析
Zhijie Yang1,2, Xiangyu Ma3, Yang Liu1,2
1Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Frontiers in bioengineering and biotechnology
|March 16, 2026
概括
通过去除远端覆盖来修改清晰的对齐器设计,可以显著减少尾连续脱稳过程中的 mesial 复发. 这种优化增强了 anchorage 的保护,并提高了整体的治疗效率,为正义牙科的纠正.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物技术是生物技术.
- 牙科机械 牙科机械
背景情况:
- 大牙的顺序脱节是一种常见的正牙技术.
- 它旨在缓解拥挤,纠正关节关系,并改善面部形状.
- 清晰对齐器越来越多地用于此目的,但可能会发生复发.
研究的目的:
- 为了评估不同远端清晰对齐器设计的生物力学影响.
- 为了减少牙在尾连续脱稳过程中牙的 mesial 复发.
- 用清晰的对齐器来提高牙运动的效率.
主要方法:
- 使用了三维有限元素分析.
- 两种模型模拟了尾牙和前牙脱稳.
- 测试了各种具有修改远部覆盖的清晰对齐器设计,并与对照器进行了比较.
主要成果:
- 在特定的后牙 (U7,U6,U5) 中去除远端覆盖物显著增加了前牙的远端位移.
- 模型A显示U5远位移对空间封闭的贡献最高 (92.01%),远位覆盖在U7和U6被删除.
- 模型B显示,U4距离位移对空间封闭的贡献最高 (81.19%),距离覆盖在U7,U6和U5.5被删除.
结论:
- 在U7和U6的清晰对齐器上去除远端部分的覆盖,有效地减少了脱的牙的 mesial复发.
- 对于第一个前脱稳,建议在U7,U6和U5移除覆盖,以防止复发.
- 优化的对齐器设计可以提高后部定和顺序脱稳的整体处理结果.
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