对影响骨压力的变量进行因数分析,这些变量与通过直接 anchorage-A有限元素研究来进行骨干脱稳使用的迷你植入物相邻
Veena Kovuru1, Kaladhar R Aileni1, Jaya P Mallepally1
1Department of Orthodontics and Dentofacial Orthopedics, SVS Institute of Dental Sciences, Appanapally, Yenugonda, Mahabubnagar, Telangana, India.
Journal of orthodontic science
|June 23, 2023
概括
最佳的迷你植入物放置用于大骨移位,涉及30°插入角度和更深的插入深度. 这些因素最大限度地降低了小型植入物和周围骨的压力,提高了稳定性和寿命.
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
- 牙科植入物学 牙科植入物学
背景情况:
- 尾大移位是一种常见的正统牙科手术.
- 迷你植入物提供直接的骨固定,提高治疗效率.
- 了解应力分布对于优化微型植入物稳定性和临床结果至关重要.
研究的目的:
- 为了研究在上大骨脱稳过程中,微型植入物和周围骨的应力分布.
- 评估不同插入角度和深度对应力模式的影响.
- 为了确定最佳的放置参数,以提高小型植入物稳定性.
主要方法:
- 使用ANSYS软件开发了一个3D有限元模型.
- 从CT扫描图像中重建了骨和牙.
- 在不同的深度 (5-9毫米) 和角度 (30°,60°,90°) 模拟了迷你植入物.
- 使用开放式螺旋弹施加脱离力.
主要成果:
- 在30°插入角度观察到较低的应力,与更强的皮质骨的接近相关.
- 增加了迷你植入物插入深度和长度,从而减少了植入物和周围骨的压力.
- 更高的插入角度 (60°,90°) 显著增加了对植入物和皮层骨的压力.
结论:
- 30°的插入角度是最好的,以最大限度地降低在上大移位期间的压力.
- 更深入地插入迷你植入物有效地减少了对植入物和骨结构的压力.
- 优化插入角度和深度可以提高初级迷你植入器的稳定性和长期成功.
相关概念视频
Stress: General Loading Conditions
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Bending of Members Made of Several Materials
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...


