清晰对齐器类型对大顶全弧入侵的影响:3D分析使用有限元法
Allahyar Geramy1, Fatemeh Safari2
1Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
BMC oral health
|February 13, 2024
概括
清晰的对齐器可以入大门,但可能会导致不必要的牙运动,如牙倾斜和切口后退. 这项研究评估了在正义牙科治疗期间使用清晰对齐器和临时定装置 (TAD) 的这些位移.
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:
- 垂直大过量 (VME) 是一个常见的正牙问题,明显的对齐器侵入提供了潜在的非手术替代方案.
- 了解对齐器材料的特性对于预测入侵期间牙的移动至关重要.
- 临时固定装置 (TAD) 经常与对齐器一起用于诸如入侵等复杂的运动.
研究的目的:
- 通过使用清晰对齐器和TADs在全额门侵入期间评估牙位移.
- 为了评估所需的入侵和不需要的副作用,如倾斜和旋转.
- 在不同的透明对齐器材料中比较潜在的牙运动.
主要方法:
- 使用SolidWorks对大弓和清晰对齐器进行有限元分析.
- 通过附件应用前后入侵力 (80g和300g) 的模拟.
- 对四个对齐器品牌 (Leon,Duran,Duran Plus,Essix Plus) 的垂直和前后牙位移的分析.
主要成果:
- 观察到最大的入在牙的口腔方面,最小的入在 palatal 方面和切口.
- 所有牙都在牙冠/口腔表面表现出面部移位,除了远部移动的切口.
- 所有牙的尾部分都显示出偏远位移的趋势.
结论:
- 使用清晰对齐器和TADs的全门入可以导致意外的牙移动.
- 观察到的副作用包括牙口腔倾斜和牙旋转,切口缩以及其他牙的牙位移.
- 需要仔细的治疗计划,以在清晰对齐器治疗期间管理这些相关的牙运动.
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