摘要
针对人体咀嚼时上颌第二磨牙的受力情况,建立与人体具有高度几何相似性的上颌第二磨牙有限元模型,以研究其生物力学特性为目的,对龋齿后的第二磨牙进行生物力学有限元分析。将人体上颌第二磨牙经锥形束CT扫描,生成三维CT扫描数据,利用MIMICS、Geomagic等软件对人体上颌第二磨牙进行几何重建,建立有限元模型,并分别对人体3种咀嚼状态进行有限元分析。本文通过对上颌第二磨牙的有限元分析,对第二磨牙咀嚼时的生物力学特性进行数值模拟,帮助牙科医生深入了解第二磨牙的生物力学特性,为临床医学牙科治疗提供理论依据。
Based on the stress of maxillary second molars during chewing, a finite element model of maxillary second molars with high geometric similarity was established for analyzing the biomechanical properties, and the maxillary second molars with dental caries were also analyzed with finite element method. The three-dimensional CT scanning data of human maxillary second molars were generated through cone beam CT images. MIMICS, Geomagic and other software were used to reconstruct the maxillary second molar, and to establish the finite element model. Three kinds of human chewing statuses were analyzed with finite element method. In this study, the finite element analysis of maxillary second molars is used to perform numerical simulation for the biomechanical properties of the second molars during chewing, which helps dentists to understand the biomechanical properties of the second molars and provides a theoretical basis for the dental treatment.
出处
《中国医学物理学杂志》
CSCD
2017年第8期832-836,共5页
Chinese Journal of Medical Physics
基金
国家自然科学基金(51375180)
福建省青年基金(2017J05006)
泉州市科技项目(2014Z115)
华侨大学科研启动基金(11BS412)
华侨大学研究生科研创新能力培育计划资助项目(1511303044)
关键词
上颌第二磨牙
生物力学
有限元分析
应力
maxillary second molar
biomechanics
finite element analysis
stress
