用三种不同的植入物插入角度的小螺丝对前突入的有限元分析
Abirami Vetriselvan1, Saravanan Pichai1, Revathi Peddu1
1Department of Orthodontics and Dentofacial Orthopedics, Sibar Institute of Dental Sciences, Guntur, IND.
Cureus
|January 26, 2026
概括
这项研究发现,在下前牙入侵时,将小螺丝放在60°的角度,可以最佳地平衡真正的入侵,应力分布,并最大限度地减少倾斜. 这种技术通过纠正垂直牙问题来增强面部美学.
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:
- 面部美学对年轻人来说越来越重要,面部和起着关键作用.
- 垂直牙异常,往往导致前牙的超喷发,是具有挑战性的治疗.
- 迷你螺丝是有效的骨 anchorage 装置用于正入侵,但他们的稳定性和有效性取决于插入角度.
研究的目的:
- 为了评估·米塞斯的压力和位移在下前牙的侵入期间使用迷你螺丝.
- 为了比较不同小螺丝插入角度 (30°,60°,90°) 对应力分布和牙运动的影响.
- 为了确定最佳的插入角度,以实现真正的入侵,最小的不良影响.
主要方法:
- 模拟了六个有限元模型的下四和六个前牙与双边的迷你螺丝.
- 应用了30°,60°和90°角插入的迷你螺丝的反侵入力向量.
- 使用ANSYS软件进行非线性静态分析,以评估·米塞斯应力和位移.
主要成果:
- 在30°插入角度观察到最高的·米塞斯应力,在60°和90°插入角度下降.
- 最大的唇部倾斜发生在90°,最小的倾斜在30°.
- 在90°达到最大的入侵,其次是60°,至少在30°,中央切口显示出最多的入侵.
结论:
- 建议将双边小螺丝斜放置在大约60°的角度,并使用反入侵力向量.
- 这种角度有利于真正的入侵,产生最佳的压力和最小的唇部倾斜.
- 这些发现为涉及下前牙侵入的正牙治疗规划提供了宝贵的见解.
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