在小螺杆辅助的质量收缩过程中,使用可变的曲角度进行尾牙的应力和位移模式的有限元分析
Amit Maheshwari1, Rushikesh Sonwane1, Veerendra Kerudi1
1Department of Orthodontics, Jawahar Medical Foundation's (JMF's) Annasaheb Chudaman Patil Memorial (ACPM) Dental College, Dhule, IND.
Cureus
|July 28, 2025
概括
15°和20°的门曲优化了对深度咬伤的正牙治疗,通过增强前牙的收缩和侵入. 这种方法有效地移动前牙,同时保持后部 anchorage,提供临床益处.
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.
- 生物材料是一种生物材料.
背景情况:
- 有效的前牙收缩与同时入侵对于治疗牙正科深部咬伤至关重要.
- 门曲可以修改强力应用以控制牙运动.
- 迷你螺杆辅助大质量收缩是一种常见的正牙技术.
研究的目的:
- 评估不同斜曲角 (0°,10°,15°,20°) 对前牙收缩和侵入的生物力学影响.
- 分析压力分布和移位模式在上牙在迷你螺杆辅助大质量收缩过程中.
- 为了确定最佳的门曲角度,以有效地对深度咬伤进行正牙治疗.
主要方法:
- 使用CT扫描数据创建了成年大的3D有限元素分析 (FEA) 模型.
- 该模型包含了包括支架,门线,带,横侧门和迷你螺杆在内的牙科器械.
- 四个FEA模型模拟了0°,10°,15°和20°的曲角度,并使用200g的收缩力.
主要成果:
- 增加的·米塞斯应力被观察到与更高的门曲角度,特别是在迷你螺杆部位和狗牙周带 (PDL) 周围.
- 15°和20°的门曲导致前牙的收缩和侵入.
- 后面的牙显示出最小的位移,保持定,而前面的牙则经历了更多的入侵和控制的倾斜在更高的角度.
结论:
- 15°和20°的门曲角度提供了最佳的生物力学条件,可以在有效的前牙侵入的情况下进行质量收缩.
- 这些角度有效地保持在正牙治疗期间的后部定.
- 这些发现表明,使用特定的曲配置来管理深咬病例的临床优势.
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