使用带有压力点的3D打印对齐器对大侧切口的力和时刻:一种体外研究
Kevin J Jahng1, Michael M Lee1, Julie F McCray1
1Department of Orthodontics, Saint Louis University, 3320 Rutger Street, Saint Louis, MO 63105, United States.
European journal of orthodontics
|July 18, 2025
概括
在3D打印的透明对齐器中,压力点有效地在上侧切口上产生旋转时刻. 这项技术提供了可预测的,定制的生物力学,而不需要附件,以改善正牙治疗.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 牙科机械 牙科机械
背景情况:
- 透明对齐器越来越多地用于正牙治疗.
- 在清晰对齐器中优化力传递系统对于可预测的牙运动至关重要.
- 3D打印为定制的对齐器制造提供了潜力.
研究的目的:
- 为了比较3D打印的清晰对齐器的初始力量和时刻.
- 评估压力点 (PP) 和缓解通道对大侧切口的远距离旋转的影响.
主要方法:
- 一个体外设置使用了多轴力/动量传感器.
- 牙22号用TC-85透明树脂对齐器将牙转向3度.
- 六个组进行了测试:对照组,面部PP,语言PP,组合PP,面部PP与语言缓解通道以及面部PP与面部缓解通道.
主要成果:
- 压力点通常会增加所需的远端旋转矩,语言PP产生最高.
- 缓解道为力量和时刻产生了混合的结果.
- 所有测试的配置,除了控制和面部PP,都表现出远程力;大多数显示出侵入力,组合PP显示出挤出力.
结论:
- 在3D打印的对齐器中,压力点可以在没有附着的上侧切口上产生旋转时刻.
- 直接打印的对齐器显示出提供定制生物力学的临床潜力.
- 这些发现表明,使用量身定制的对齐器设计,可以更好地预测正治疗的可预测性.
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