低龈距下颌第一磨牙全冠有限元模型的建立  

Construction of 3D FEA model of mandibular first molar crown with lower occlusogingival distance

作　　者：陈丽洁 何惠明 雷淑存[2] 邹承蓉[3] 王军[4] 

机构地区：[1]第四军医大学口腔医院,陕西西安710032 [2]西安理工大学,陕西西安710032 [3]兰州军区机关门诊部,甘肃兰州730000 [4]第四军医大学西京医院,陕西西安710032

出　　处：《牙体牙髓牙周病学杂志》2008年第3期157-160,共4页Chinese Journal of Conservative Dentistry

摘　　要：目的:建立低龈距下颌第一磨牙全冠三维有限元模型。方法:用Micro-CT扫描离体下颌第一磨牙,再用Mimics10.0、Geomagic studio8等图像处理软件,Pro/ENGINEER实体建模设计软件,以及有限元分析软件Abaqus建立模型。结果:建立了低龈距下颌第一磨牙具有根管和临床常用的辅助固位形的全冠修复牙体预备体、金属冠、牙周膜和牙槽骨的三维有限元模型。结论:用该方法建模方便、快捷、有效,所得模型真实、准确,能够满足各种生物力学分析的需要。AIM： To construct a three - dimensional （3 D） finite element model of the mandibular first molar crown with lower occlusogingival distance. METHODS：A mandibular first molar was scanned by Micro - CT. Then, images reconstruction software was used in combination with solid modeling designing software and finite element analysis software to build the model. RESULTS：An ideal three - dimensional finite element model of the mandibular first molar crown with lower occlusogingival distance was constructed, including pulp, periodontal ligament, alveolar bone and supplementary retention form. CONCLUSION ： Using Micro - CT technique to construct the three - dimensional finite element model of the tooth structure is convenient and effective. The model is authentic and accurate. It can be used for all kinds of biomechanical analysis.

关 键 词：下颌第一磨牙 全冠 显微CT 三维有限元法 [牙合]龈距 

分 类 号：R783.2[医药卫生—口腔医学]