摘要
目的:初步探讨如何建立可靠有效的牙齿与铸造桩核三维有限元模型.方法:采用切片法三维重建,人工网格划分并设定相应边界、加载条件.结果本实验所建模型基本拟合了牙齿桩核的形态并符合其受力和约束情况.结论:牙齿与桩核三维有限元模型的可靠性取决于有效的三维重建,所选择网格数量、类型,所赋于材料力学特性参数的正确性及所设定边界条件应尽可能接近实际情况.
ve: To primarily study how to construct effective three-dimentional finite element model of tooth and post-core. Method: The tooth was sectioned transversely with diamond. Photographs were taken of the cross sections and digitiaed. The three-dimentional geometry of the tooth was reconstructed. Then two loads were applied to the model and the nodes on the root apex surface were constrained. Results: The model effectively simulated the geometry of tooth and cast post-core. Conclusions: To construct effective three -dimentional finite element model relies on the reconstrution, the number and style of track , the parameter of materials and constrained environment.
出处
《口腔颌面修复学杂志》
2000年第3期143-144,138,T192,共4页
Chinese Journal of Prosthodontics
