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用两种不同的仿生修复材料修复的II类腔体中应力分布和变形的比较评估:一个三维有限元分析:一个三维有限元分析

Parul Bansal¹, Tanya Seth¹, Mohit Kumar²

¹Department of Conservative Dentistry and Endodontics, Shree Bankey Bihari Dental College and Research Centre, Ghaziabad, IND.

|October 14, 2024

概括

与Activa Bioactive相比,EverX Posterior在II类空洞中表现出优越的承受压力的能力. 有限元分析显示,EverX Posterior更好地分配压力,最大限度地减少恢复牙的变形.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
生物力学生物力学

背景情况:

二级牙是常见的牙科修复.
评估修复材料中的应力分布对于长寿至关重要.
新型生物活性材料提供了潜在的优势,但需要进行机械评估.

研究的目的:

用EverX Posterior和Activa Bioactive恢复的II类腔中的应力分布和变形进行比较.
用三维有限元素分析进行机械评估.

主要方法:

创建了一个下第一个毛模型,并具有II类的 mesio-occlusal 腔.
EverX后部和Activa生物活性几乎被放置在腔内.
应用了600N的静态闭塞负荷,并使用3D FEA分析了应力 (von Mises,最大主力) 和变形.

主要成果:

活跃生物活跃表现出比EverX Posterior更高的von Mises和最大主应力.
活性生物活性吸收了更多的内部压力,对牙结构的分布较少.
由于材料刚度较低,Activa生物活性模型的变形明显更高.

结论:

与Activa Bioactive相比,EverX Posterior具有更大的承受负载区域压力的能力.
在闭塞负载下进行II类修复时,EverX后部可能会提供更好的机械性能.

关键词:

活跃的生物活跃的生物活跃的活跃.生物模拟修复材料生物模拟修复材料在Everx后面的背部.有限元分析是有限元分析.压力分布的压力分布.总的变形情况.-米塞斯强调压力.

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