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对于植入物支持假肢的Co-Cr框架的拓设计和结构优化

Safa Özden¹, Muhammed Esad Kayacan², Farhad Salmanpour³

¹Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey.

The Journal of prosthetic dentistry

|September 26, 2025

概括

拓优化显著降低了植入式支持牙假体的- (Co-Cr) 框架的重量,高达51.2%. 这种方法保持了机械完整性,为重型牙框架提供了可行的解决方案.

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
计算力学计算力学计算力学

背景情况:

对于完整的形植入物支的固定牙假体,- (Co-Cr) 框架可能过于重,特别是在增加闭口垂直尺寸的情况下.
这种重量带来了挑战,可能需要昂贵的替代材料.

研究的目的:

调查拓优化对 Co-Cr 框架的生物机械性能和重量减轻对完整形植入支持的固定牙假体的影响.
评估不同的格子结构和框架高度,以获得最佳的结果.

主要方法:

使用CAD软件使用Co-Cr框架的虚拟建模,具有不同的闭膜高度 (10mm,14mm) 和格子类型 (Schwarz,Gyroid,Diamond,Neovius).
拓优化和有限元分析 (FEA) 的应用,以评估在模拟的闭塞负载下应力,位移,反应力和重量减轻.
16个优化设计与2个固体,非优化控制框架的比较.

主要成果:

拓优化格子框架实现了显著的重量减轻,高达51.2%,而不会影响材料产量强度.
甲状腺晶格结构显示出优异的减重 (P<.001).
闭关高度严重影响了应力,位移和反应力 (P<.05),所有值都保持在生理容忍范围内.

结论:

拓优化是一种有效的策略,可以大幅减少Co-Cr牙框架的重量.
保持机械完整性,使其成为更重的设计或更昂贵的材料的可行替代品.
格子几何和框架高度是成功优化牙假肢拓的关键参数.

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