使用清晰对齐器的牙脱落的可预测性及其影响因素:一项回顾性研究
Shangyou Wen1, Donger Lin1, Xuechun Yuan1
1Department of Orthodontics, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
European journal of orthodontics
|July 2, 2025
概括
清晰对齐器治疗对牙脱落的可预测性有所不同. 诸如旋转大小和弹性等因素影响结果,而不是附着类型. 建议对不同牙进行过度处理比率.
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
- 牙科技术 牙科技术
背景情况:
- 预测牙的移动在正牙科中至关重要.
- 清晰对齐技术为牙移动提供了精确的方法.
- 了解脱位可预测性是有效的清晰对齐器治疗的关键.
研究的目的:
- 通过使用清晰的对齐器来评估刺刀,狗和前脱皮的可预测性.
- 为了确定与清晰对齐器处理中脱位相关的过度处理比率.
主要方法:
- 分析了接受Invisalign治疗的44名患者的461颗旋转牙.
- 使用口内扫描和3D分析软件测量了脱位角和效率.
- 相关的各种临床因素 (年龄,性别,骨形状,弹性等). 带有脱位差异的情况.
主要成果:
- 牙类型之间脱牙效率没有显著差异.
- 预测和实现的脱牙之间的差异与大牙和下牙切口的设计值相关.
- 多变量分析确定了关键影响因素:大小,空间,方向,弹性和牙比率.
- 建议的过度处理比率:27% (大切口),30% (大切口),35% (大犬),38% (大前).
结论:
- 旋转的可预测性受到旋转大小,空间可用性,方向,弹性和牙尺寸比率的影响.
- 附件类型不会显著影响降级可预测性.
- 可以估计过度处理比率,以改善清晰的对齐器处理计划.
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