在不同类型的假肢和不同数量的植入物中对负荷分布的比较评估:FEM分析
Roopal Srivastava1, Rajesh Bansal1, Pavan Kumar Dubey1
1Prosthodontics, Faculty of Dental Sciences, IMS BHU, Varanasi, India.
Journal of oral biology and craniofacial research
|April 5, 2024
概括
一个三种植入的下过度合提供了优越的应力分布和稳定性. 这种配置提供了一种实际的解决方案,以提高过度假肢假肢的性能和患者的结果.
科学领域:
- 生物材料科学 生物材料科学
- 牙科植入物学 牙科植入物学
- 生物力学 生物力学
背景情况:
- 超牙假肢需要最佳的植入物支持,以防止压力集中.
- 有限元分析对于评估生物力学性能至关重要.
研究的目的:
- 为了确定下骨过度牙的植入物理想数量和位置.
- 为了尽量减少对植入物,假牙和附着系统的压力.
主要方法:
- 创建了8个3D有限元模型,使用1-8植入物进行下大牙.
- 应用了条式附件和200N的垂直负荷.
- 评估了植入周围骨的生物力学特征.
主要成果:
- 所有模型都表现出在生理耐受性极限内的周植入应激.
- ·米塞斯应力值在116.18MPa到536.7MPa之间.
- 三种植入的模型显示出优异的结果.
结论:
- 一个三种植入物支持的过度接提供了最佳的周植入物应力分布,稳定性,成本效益和卫生.
- 将第三个植入物添加到中交叉体区域可以减少两种植入物系统中的旋转不稳定性.
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