透明对齐器的有限元分析具有悬浮的附件和扩展的牙覆盖,用于关闭牙间空间
Guojin Zeng1,2,3, Xiaoqing Ma4, Dan Lin1,2
1Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China.
Frontiers in bioengineering and biotechnology
|February 2, 2026
概括
悬浮的附件与清晰的对齐线 trimline 延伸相结合,在正牙空间关闭期间改善了狗的身体运动. 这种增强的设计为前提取病例提供了更大的控制和效率.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物机械工程 生物机械工程
- 牙科材料 牙科材料
背景情况:
- 清晰对齐器 (CA) 越来越多地用于正牙治疗.
- 悬浮 (OH) 附件是修改后的CA附件,旨在改善根部运动控制.
- 牙延伸CA三线可能进一步增强生物力学效应.
研究的目的:
- 为了研究OH附件和CA trimline牙延伸在提取空间关闭期间对狗运动的生物力学影响.
- 用有限元素分析 (FEA) 来比较OH附件与常规附件的有效性.
主要方法:
- 使用来自成人患者的CBCT数据,采用有限元素分析 (FEA).
- 三种附件类型 (没有附件,垂直,OH) 和四种trimline设计进行了比较.
- 评估了牙周带 (PDL) 液态应力,牙位移和对齐器应力.
主要成果:
- 与垂直附件相比,OH附件显著增加了牙位移和PDL液态应力.
- 结合OH附着和CA三线的口舌牙延伸的结合,导致了最可翻译的狗运动.
- 这种结合的方法最大限度地降低了 mesio-apical 与 disto-occlusal 位移的比率,并避免了过度的对齐器变形.
结论:
- 悬浮的附件与CA三线部分牙延伸相结合,可显著增强前牙提取病例的正牙力.
- 这种设计是一种更有效,更可行的方法来实现身体犬的运动.
- 这些发现表明,对于复杂的正牙运动来说,一个优化的清晰对齐系统是可以实现的.
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