摘要目的 建立上颌第一磨牙全瓷冠三维有限元模型.方法 将在体上颁第一磨牙经CT扫描及图像处理后,应用Mimics软件和Imageware软件建立三维几何模型,预备出基牙和全瓷冠各层,然后导入有限元分析软件Abaqus软件中生成实体模型.结果 建立了上颌第一磨牙全瓷冠三维有限元模型,总节点为60160个,4面单元数为186 328个.结论 所构建的模型结构完整,单元划分精细,能够较精确地模拟实体状态,为进一步的生物力学研究提供了基础.

abstractsObjective To reconstruct three-dimensional finite element analysis all-ceramic crowm model of the first maxillary molar.Methods After the CT scanning and image processing to the first maxillary molar in vivo,a 3-D geometric model was established by the Imageware software.The mesh model was then built in Abaqus,the finite element analysis software.Result The three dimensional finite element all-ceramic crown models of the first maxillary molar was constructed on the computer,which had 60 160 nodes and 186 328 tetrahedrons elements.Conclusion The finite element model constructed has the advantages of intact structure and precise elements,can simulate the natural condition and facilitate the further biomechanical research.