ортодонтикаEn-Bloc收缩的生物机械模拟,比较复合技术和滑动力学,使用HOSEA机器人设备
Hisham Sabbagh1, Ellen Haas1, Uwe Baumert1
1Department of Orthodontics and Dentofacial Orthopedics, LMU University Hospital, LMU Munich, Goethestrasse 70, 80336 Munich, Germany.
Bioengineering (Basel, Switzerland)
|February 23, 2024
概括
通过比较正牙收缩技术,使用预扭矩弧线的复合技术比滑动力学实现了更多的身体切口运动. 传统的滑动机制在en-bloc收缩过程中产生了过度的 palatal根扭矩时刻.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物力学 生物力学
- 牙科材料 牙科材料
背景情况:
- 在正牙科中,En-bloc收缩对于控制切肢倾斜至关重要.
- 宫根扭矩时刻是必不可少的,但对不同机制的比较研究是有限的.
研究的目的:
- 为了比较使用两种不同的正统牙力学在封闭式收缩过程中的力量和时刻.
- 研究复合技术与传统滑动力学之间的生物力学差异.
主要方法:
- 使用机器人生物机械模拟系统来分析en-bloc收缩.
- 比较复合技术 (不钢/-弧线与预先扭矩的线) 和滑动力学 (不钢弧线与手动曲).
- 检查了两个弧线尺寸 (0.017"x0.025",0.018"x0.025") 与0.022"插槽自结括号.
主要成果:
- En-bloc收缩产生了显著的倾斜和直立运动,因机械而异.
- 在所有小组中都存在附带力量和时刻.
- 收缩扭矩弧线 (RTA) 显示出较少的挤出力.
- 使用0.018"x0.025"RTA的复合技术产生了最多的身体运动.
- 滑动机制产生了过度的 palatal 根扭矩 (>20 Nmm).
结论:
- 与滑动力学相比,复合技术在封闭式收缩过程中提供了优越的身体切口运动控制.
- 传统的滑动机制可能会产生不必要的,过度的 palatal 根扭矩.
- 收缩扭矩弧线在最大限度地减少外挤力和改善身体运动方面是有效的.
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