运用显微CT技术建立下颌第二磨牙C形根管系统的有限元模型  

Construction of the three-dimensional finite element model of the mandibular second molar C-shaped canal root system

作　　者：陈滔[1] 吴佩玲[1] 任国栋[2] 

机构地区：[1]新疆医科大学第二附属医院口腔科 [2]新疆大学工程技术学院,新疆乌鲁木齐830028

出　　处：《新疆医科大学学报》2009年第4期420-422,共3页Journal of Xinjiang Medical University

基　　金：新疆维吾尔自治区自然科学基金项目(编号:200721114)

摘　　要：目的:利用有限元法建立下颌第二磨牙C形根管系统的三维有限元模型。方法:采用显微CT(Micro-CT)扫描,应用Mimics 8.1、imageware、Unigraphics NX及Ansys9.0等逆向工程软件分别得到下颌第二磨牙根管系统三维外形、实体模型和有限元模型。结果:建立了下颌第二磨牙C型根管系统的三维有限元模型,网格质量好,具有高度的精确度,并由此证实模型的可行性。结论:将Micro-CT扫描技术、数字图像处理技术与有限元方法结合起来,可建立出高精度的下颌第二磨牙根管系统的三维有限元模型,为口腔生物力学提供了研究手段。Objective： To construction a three-dimensional finite element model of the mandibular second molar of C-shaped canal root system. Methods： Miero-CT scanning technology was used in combination with medical image reconstruction software and RE software. Dependability of the model was testified. Results： An ideal three-dimensional finite element model of the mandibular second molar C-shaped canal root system in vitro was construetied, which can provide a basis for the future research of its biomechanical characteristica. Conclusion： The constructed three-dimensional finite element model of the mandibular second molar root system in vitro model was feasible and effective and could be applied in the stress analysis of denture and teeth.

关 键 词：下颌第二磨牙 Micro-CT扫描 三维有限元 

分 类 号：R445.3[医药卫生—影像医学与核医学] R781.33[医药卫生—诊断学]