牙周状况对用清晰调整器的状序列脱稳的生物力学影响:有限元素研究
Yanning Ma1,2, Xinyue Fan1, Xulin Liu1
1State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, China.
Progress in orthodontics
|May 4, 2025
概括
牙周状况显著影响清晰的对齐者干脱稳,导致倾斜和复发. 根据牙周健康状况调整运动阶段对于有效的正牙治疗至关重要.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙周病学 牙周病学
- 生物机械工程 生物机械工程
背景情况:
- 清晰对齐器疗法可以使质序列脱稳.
- 牙周状况对这一过程的影响仍未得到充分研究.
- 了解这种相互作用是优化治疗和尽量减少不良影响的关键.
研究的目的:
- 为了分析不同的牙周状况如何影响用清晰对齐器的牙脱稳.
- 探索治疗建议,在正牙移动期间管理牙周状况.
- 通过定制运动阶段来减少不利的机械刺激.
主要方法:
- 有限元模型 (FEMs) 是为了模拟摩尔脱稳定而开发的.
- 模型包含了不同的牙周状况 (轻度,中度,重度牙周炎) 和步距 (0.10毫米,0.18毫米,0.25毫米).
- 分析了初始位移和牙周带 (PDL) 的水静压力.
主要成果:
- 更糟糕的牙周状况导致更大的初始牙位移与更大的步骤距离 (0.25毫米),但这与倾斜有关,而不是提高效率.
- 由于第一个骨脱稳,第二个骨的月经性复发会对效率产生负面影响.
- 减少步距离有效控制了与膜骨再吸收相关的不必要的牙运动.
结论:
- 根据个人牙周状况量身定制的清晰对齐器运动的个性化分阶段是必要的,以尽量减少倾倒和复发.
- 建议使用特定的步骤距离 (0.18毫米为1/3的膜骨再吸收,0.1毫米为1/2).
- 这些发现为治疗不同程度牙周病患者的正牙医提供了指导.
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