对植入物超结构的哈夫金属条进行侧向应力分布分析-有限元分析
Budati Meghna1, Vaishnavi Rajaraman1, Padma Ariga2
1Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
Journal of oral biology and craniofacial research
|November 28, 2025
概括
哈夫尼和条在侧面负载下的植入物假肢中显示了类似的应力分布. 哈夫为传统材料提供了一个有希望的替代品,为牙科应用提供了进一步的研究.
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
- 机械工程 机械工程
背景情况:
- 植入物支假肢的机械行为至关重要,特别是在侧面的力下.
- 和是标准的条形框架材料,但像PEEK和 hafnium这样的替代品可能会提供生物机械的好处.
研究的目的:
- 用四种不同的条形材料比较植入物支假肢的侧向应力分布:,-,PEEK和 hafnium.
- 评估新材料在牙科植入物框架中的生物力学性能.
主要方法:
- 一个三维的有限元素分析 (FEA) 进行在一个下式无牙模型与一个全在4植入物配置.
- 在模拟中,四个模型 (Ti,CoCr,PEEK,Hf) 承受了侧面负荷 (100N前部,300N后部).
- ·米塞斯应力分析了杆,支柱,螺丝和围植入骨的压力.
主要成果:
- 聚乙基 (PEEK) 显示了较低的条条应力,但高的支柱和螺丝应力.
- - (CoCr) 呈现出最高的条条应力.
- (Ti) 和哈夫 (Hf) 显示出平衡的应力配置,Hf 紧密模仿了 Ti 的有效负载分布.
结论:
- 条形材料显著影响植入物假肢中的应力分布.
- 哈夫尼表现出与相似的生物力学行为,表明其作为替代框架材料的潜力.
- 需要进一步的体外和临床研究来验证哈夫在植入物支持假肢中的使用.
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