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压力度的比较有限元素分析在V类下方前腔不同地恢复粘合性牙科材料的压力度
1College of Dentistry, Hawler Medical University, Kurdistan Region, Iraq.
European journal of dentistry
|January 20, 2026
概括
有限元分析显示,闭塞负载强度,而不是修复材料类型,在V类修复中显著影响应力分布. 较高的负载会增加应力,Cention40复合材料的度最低.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料科学 牙科材料科学
- 生物力学 生物力学
背景情况:
- 类V的修复容易受到闭合力的影响.
- 了解应力分布对于材料选择和寿命至关重要.
- 有限元分析 (FEA) 是模拟生物机械行为的宝贵工具.
研究的目的:
- 评估和比较V类修复中使用不同材料在不同封闭负载下进行的应力分布.
- 为了确定闭塞负荷强度与恢复性材料类型对应力模式的影响.
主要方法:
- 使用CAD软件创建了一个下第一个前的3D有限元素模型.
- 使用ANSYS软件进行FEA,以模拟应力和位移.
- 在用玻璃离子体水泥 (GIC),Activa BioActive-Restorative和Cention40.0恢复的V类空洞中,应用了四个闭口负荷级 (100-250N).
主要成果:
- 没有恢复的牙的应力从49.23MPa (100N) 增加到123.15MPa (250N).
- 玻璃离子体水泥 (GIC) 修复显示较低的应力 (35.00-87.51 MPa) 比未修复的牙.
- Cention40复合材料表现出最低的应力度 (100N时28.02MPa),表明在负载下性能优越.
- 活性生物活性-恢复性显示出有利的分布,但压力值略高.
- 在材料之间没有发现应力分布的显著差异 (p=0.202),但负载强度显著影响了应力 (p=0.004).
结论:
- 闭塞负荷强度是影响V类修复中应力分布的主要因素.
- 修复性材料类型在应力分布模式中起到次要作用.
- 所有测试的材料都显示了可比的应力分布,负载是主要变量.
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