组织工程与重建外科杂志

组织工程与重建外科杂志 ›› 2009, Vol. 5 ›› Issue (1): 25-28.doi: 10.3969/j.issn.1673-0364.2009.01.007

• 论著 • 上一篇    下一篇

正常人上颌骨的生物力学分析

沈毅，孙坚，李军，王冬梅，王成焘   

  1. 上海交通大学医学院附属第九人民医院口腔颌面外科;上海市口腔医学重点实验室;上海交通大学机械工程学院生命质量与机械工程研究所
  • 发布日期:2020-07-23

Biomechanical Analysis of the Normal Maxilla

SHEN Yi1,SUN Jian1,LI Jun1,WANG Dongmei2,WANG Chengtao2   

  1. 1 Department of Oral and Maxillofacial Surgery;Shanghai Ninth People’s Hospital;Shanghai Jiaotong University School of Medicine;Shanghai Key Laboratory of Stomatology;Shanghai 200011;China. 2 Institute of Life Quality via Mechanical Engineering;School of Mechanical and Power Energy Engineering;Shanghai Jiaotong University;Shanghai 200030;China.;
  • Published:2020-07-23
  • Contact: 上海市卫生局科研项目(044061) 上海市科学技术委员会项目(08DZ2271100)

摘要： 目的建立正常人颅颌面骨三维有限元模型,并对上颌骨进行生物力学分析。方法对正常男性行螺旋CT扫描,应用数字影像传输以及MedGraphics和ANSYS8.0软件建立颅颌面骨三维有限元模型,模拟正常咬力来观察上颌骨的应力分布和位移。结果建立了正常人颅颌面骨三维有限元模型,包括273191个单元和260988个节点。加载后上颌骨表现为压应力,应力集中于尖牙区、第一磨牙上方和蝶骨翼突区,在颧牙槽嵴和尖牙区应力较大,前鼻棘和牙槽突可能发生的位移最大。结论正常人上颌骨三维有限元模型的生物力学分析结果与临床一致,为口腔颌面部肿瘤患者术后上颌骨重建提供了理论依据。

关键词: 上颌骨, 三维有限元模型, 生物力学分析

Abstract: Objective To construct three-dimensional finite element model of normal cranio-maxillofacial bones and to analyse biomechanical feature of the maxilla. Methods Based on the data of spiral CT scan from a normal male, three-dimensional finite element model of cranio -maxillofacial bones was constructed by digital image transfer and software of MedGraphics and ANSYS 8.0. The normal occlusal forces were simulated to observe the stress distribution and deviation of the maxilla. Results Three-dimensional finite e...

Key words: Maxilla, Three-dimensional finite element model, Biomechanical analysis

中图分类号: