用清晰对齐器挤出大中央切口器时产生的力和时刻:一个体外研究研究
Abraham McKay1, Julie McCray1, Brent Bankhead1
1Department of Orthodontics, Saint Louis University, Saint Louis, MO, USA.
BMC oral health
|July 17, 2023
概括
清晰的对齐器可以挤出大中央切口. 热成型对齐器产生比3D打印的更高的力,但附件和压力柱可以帮助挤出,尽管存在意想不到的力.
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
- 牙科机械 牙科机械
背景情况:
- 清晰对齐器治疗是一种流行的正统牙科治疗.
- 实现控制的牙运动,如挤出,对于可预测的结果至关重要.
- 为了优化处理,比较不同透明对齐器材料和设计的机械性能至关重要.
研究的目的:
- 为了评估口腔和舌头压力柱在挤出大中央切口器没有附件的有效性.
- 为了比较热成型和3D打印透明对齐器在挤出过程中产生的力和矩.
- 评估附件和压力柱对挤出力的影响.
主要方法:
- 一个三轴力和动量传感器测量了左上中央切刀 (UL1) 挤出过程中的力.
- 热成型对齐器 (ATMOS®,Zendura FLX®) 和3D打印对齐器 (TC-85树脂) 进行了测试.
- 评估了三个条件:没有附件/压力柱,仅有附件,仅有压力柱.
主要成果:
- 所有测试条件都显示了力和时刻的统计学上显著差异 (P < 0.001).
- 热成型对齐器比3D打印的对齐器产生更高的力和时刻.
- 附件始终产生挤出力,而压力柱是有效的3D打印对齐器.
结论:
- 与热成型对齐器 (ATMOS®,Zendura FLX®) 相比,3D打印对齐器 (TC-85) 的挤出力较低.
- 附件对于切口挤出是有效的,压力柱可以通过3D打印的对齐器促进挤出.
- 在所有测试组中都观察到显著的意外力量和瞬间,突出显示了清晰的对齐器机制的复杂性.
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