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化水泥对Bioflx冠冕生物机械行为的影响

Ahmed S Waly¹, Salah A Yousief^2,3, Mohamed Elsayed Moteea¹

¹Department of Pediatric Dentistry, Faculty of Dentistry, Al-Azhar University, Assiut, Egypt.

BMC oral health

|June 21, 2025

概括

传统的玻璃离子体水泥 (GIC) 在初级牙上的Bioflx冠状结构中表现最好. 自固化树脂修饰的GIC显示出最多的变形和最高的应力,表明潜在的故障.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
有限元分析有限元分析

背景情况:

用Bioflx皇冠恢复初级牙需要了解水泥的影响.
评估不同的水泥类型对于预测修复寿命和性能至关重要.

研究的目的:

通过使用三种不同的水泥类型,评估Bioflx皇冠在初级牙上的生物力学性能.
为了比较与传统玻璃离子体水泥 (GIC),自我固化树脂修饰的GIC (RMGIC) 和自我固化的树脂水泥 (RC) 相关的应力和变形模式.

主要方法:

开发了三种有限元素模型,代表由GIC,RMGIC和RC支持的Bioflx冠.
使用激光扫描的几何图形下一个第二个初级.
在垂直,斜 (45°) 和侧向角度模拟闭塞负荷 (330 N),以评估应力和变形.

主要成果:

自固化RMGIC在所有组件和负载条件中表现出最高的变形.
传统的GIC和自我修复的RC显示了相似的结果,RMGIC在侧向/斜向负载下显示了高应力.
在皮质骨区域观察到高压力度,特别是在RMGIC.

结论:

传统的GIC表现出优越的性能,因为其机械性能和适合于较薄的应用.
自愈树脂水泥提供了第二好的性能.
自愈RMGIC可能不适合Bioflx皇冠修复由于高应力和变形,表明故障的风险.

关键词:

在BioFlex的冠冕上.有限元素分析的研究.GIC水泥公司的水泥.用自固化树脂修改的GIC.树脂水泥是一种树脂水泥.

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