合金牙科植入物的连接结构对生物机械性质的影响
Fei Sun1, Libing Xu1, Jianmin Han2
1School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110004, China.
Journal of the mechanical behavior of biomedical materials
|November 8, 2024
概括
与其他设计相比,六边形加连接在体牙科植入物中提供了优越的应力分布. 这种设计对于改进的扭矩传输和更宽的安装角度来说是最佳的.
科学领域:
- 生物材料工程 生物材料工程
- 牙科植入物学 牙科植入物学
- 生物力学 生物力学
背景情况:
- 齐尔科尼亚牙植入物的内部连接结构对于其生物力学性能和寿命至关重要.
- 了解不同连接设计中的应力分布对于优化植入物稳定性和功能至关重要.
研究的目的:
- 为了比较四种不同的内部连接结构 (三角形,四边形,六角形,六角形和六角形) 的牙植入物的应力分布.
- 通过有限元分析,在静态负荷,骨水平和扭转条件下分析这些结构.
主要方法:
- 使用了有限元素方法 (FEM) 分析.
- 模拟了四种不同的石牙科植入物的内部连接设计:三角形,四边形,六角形和六角形.
- 在三个不同的工作条件下进行了模拟:静态负载,骨水平和扭转.
主要成果:
- 在静态负荷下,六边形连接显示了最高的应力 (1284.9 MPa),而六边形连接则显示了最低的应力 (1252.9 MPa).
- 对于骨水平模型,三角连接表现出压力分布不佳 (69.606 MPa皮质,7.8191 MPa无效),而六边形连接显示出优异的结果 (66.24 MPa皮质,5.1327 MPa无效).
- 在扭矩模型中,六球形加连接显示了最高的应力 (237.6 MPa),但保持了最小的力传递角度.
结论:
- 六边形加连接在骨层模型中显示了有利的应力分布.
- 虽然在扭力方面表现出更高的应力,但六边形加连接在安装角度范围和扭矩传输方面具有优势.
- 六极管加连接可能是石牙科植入物的最佳选择,平衡生物机械性能和临床适用性.
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