使用有限元法对腹中央切口中阻力中心的闭塞性低功能的影响
Kachaphol Kuharattanachai1, Dhirawat Jotikasthira1, Wetchayan Rangsri2
1Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
功能性牙的抵抗中心 (Cres) 位于功能性牙的牙上,而不是功能性牙. 纸腔体积的增加使得Cres在牙上移动,影响了正牙治疗的计划.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物机械分析分析
- 牙科的解剖学 牙科的解剖学
背景情况:
- 抵抗中心 (Cres) 对于预测牙在正牙治疗期间的移动至关重要.
- 了解影响Cres位置的因素对于有效的治疗计划至关重要.
研究的目的:
- 为了比较功能牙和缺功能牙之间的抵抗中心 (Cres) 的位置.
- 通过有限元分析,研究纸腔体积和Cres位置之间的关系.
主要方法:
- 腹中央切口的有限元素 (FE) 模型是从形光束计算机断层扫描 (CBCT) 数据中创建的.
- 参与者被分为正常功能和低功能的组,基于脑电测量测量.
- 确定了Cres的位置,并对各组进行了统计比较,并对体积比率进行了相关性分析.
主要成果:
- 功能低下的牙 (前开口咬牙组) 呈现出显著更大的脉腔和根管体积.
- 在低功能的群体中,Cres位于显著更高的顶点 (从根顶部0.6毫米或3.7%).
- 根管/根体积比和Cres位置之间发现了强烈的负相关性.
结论:
- 与功能牙相比,抗性中心 (Cres) 在低功能的牙中处于更角的位置.
- 纸腔体积的增加与Cres位置的尖端移动有关.
- 这些发现对正义牙机制和治疗可预测性有影响.
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