不同棒材质的应力分布和假肢变形分析,考虑不同负载条件下的三叶植入系统中的重量:有限元研究
1Faculty of Dentistry, Department of Prosthodontics, Inonu University, Malatya, Türkiye.
Computer methods in biomechanics and biomedical engineering
|November 13, 2025
概括
,,碳纤维增强PEEK为Trefoil假肢条提供了卓越的性能. 材料选择显著影响变形,金属变形最小,树脂变形较高,提高生物机械效率.
科学领域:
- 生物材料科学是生物材料的科学.
- 牙科材料研究 牙科材料研究
- 在牙科领域的机械工程.
背景情况:
- 植入Trefoil系统为没有牙的患者提供了一个固定的解决方案.
- 条材材质的选择对于牙科假肢的生物机械性能和寿命至关重要.
- 了解特定材料的应力和变形对于优化植入物支持的修复至关重要.
研究的目的:
- 为了评估Trefoil植入系统中七种不同的条形材料的生物力学性能.
- 在各种负载条件下比较应力分布和假肢变形.
- 确定最佳的条形材料,以提高Trefoil假肢的生物机械效率.
主要方法:
- 使用了三维有限元素分析 (FEA).
- 测试了七种条形材料: (Ti),- (Co-Cr), (Zr),聚乙烯基 (PEEK),碳纤维增强PEEK (CFR-PEEK),3D打印树脂 (3D-Pr) 和聚甲基甲酸 (PMMA).
- 在垂直和斜负荷下进行模拟,以分析应力和变形模式.
主要成果:
- 条材材料显著影响了假肢变形;金属材料 (Ti,Co-Cr,Zr) 的变形最小,而非金属材料 (3D-Pr,PMMA) 的变形更大.
- 计算了每个材料的性能指数,整合了质量和变形.
- 表现出最高的性能,其次是和CFR-PEEK,显示出优越的生物力学特性.
结论:
- 材料选择极大地影响了Trefoil植入体假肢的生物机械行为.
- 建议使用金属和先进的复合材料,如,,CFR-PEEK等,以获得最佳性能.
- 选择合适的条形材料可以显著提高Trefoil植入系统的生物机械效率和耐用性.
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