在清晰的对齐器处理中对牙运动的三维评估中度和重度拥挤
Margaret Eason1, Sandra Khong Tai2, Charlene Tai Loh2
1Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
Clinical oral investigations
|December 9, 2025
概括
清晰对齐器治疗有效地纠正中度至重度拥挤. 非提取病例会扩大弓形和发火切口,而提取病例可能会导致切口的逆向倾斜和骨倾斜,需要仔细管理.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科技术 牙科技术
- 生物机械分析 生物机械分析
背景情况:
- 清晰对齐疗法 (CAT) 越来越多地用于正义牙.
- 中度至严重的牙科拥挤在治疗规划中提出了挑战.
- 在CAT中了解牙运动模式对于可预测的结果至关重要.
研究的目的:
- 用CAT治疗中度至重度拥挤的患者评估角形和线性牙运动.
- 为了比较CAT病例之间的牙运动,有或没有前拔除.
主要方法:
- 对46名因中度至重度拥挤而接受CAT的患者进行了回顾性研究.
- 患者被分为提取 (n=23) 和非提取 (n=23) 组.
- 使用3D数字模型来量化线性和角性牙位移;通用估计方程分析了群体差异.
主要成果:
- 在提取的情况下,CAT导致了显著的上部和下部切肢逆向倾斜 (分别为-6.71°和-5.11°).
- 提取病例中的定控制是有限的,表现出 mesial 关节运动和切口舌化.
- 非提取病例通过门扩张和切口火焰实现了拥挤校正;在两组中,垂直变化是相似的.
结论:
- 对于中度至重度拥挤而没有提取的CAT,它促进了门扩张和切口的倾斜.
- 用前提取的CAT可以导致切割刀的逆向倾斜和牙骨的倾斜,需要精确的生物机械控制.
- 这些发现有助于临床医生在治疗规划,患者期望管理和提取和非提取CAT病例的优化结果方面.
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