法医学杂志

法医学杂志 ›› 2007, Vol. 0 ›› Issue (6): 434-437.

• 论文 • 上一篇    下一篇

不同年龄下颌骨应力分布与骨折发病率的关系

邹朝勇;徐金;姜平;   

  1. 镇江市公安局,江苏大学司法鉴定所,江苏大学医学院 江苏镇江212001,江苏镇江212001,江苏镇江212001
  • 发布日期:2007-12-25 出版日期:2007-12-28

The Relationship between Age-related Stress Distribution and Fracture Incidence of the Mandible

ZOU CHAO-YONG1, XU JIN2, JIANG PING3 (1.ZHENJIANG MUNICIPAL PUBLIC SECURITY BUREAU, ZHENJIANG 212001,CHINA; 2.INSTITUTE OF FORENSIC SCIENCE, JIANGSU UNIVERSITY, ZHENJIANG 212001,CHINA; 3.MEDICAL COLLEGE OF JIANGSU UNIVERSITY, ZHENJIANG 212001,CHINA)   

  • Online:2007-12-25 Published:2007-12-28

被引次数

5

摘要： 目的分析不同年龄的下颌骨正中受力时,下颌骨三维有限元分布的差异。方法选用儿童、中年和老年的下颌骨,采用螺旋CT扫描,MIMICS软件建模,HYPERMESH软件划分单元,ANSYS进行三维有限元应力分布分析。结果三种年龄下颌骨最大的平均综合应力均出现在下颌角;中年的下颌颈有应力的分布,但老年和儿童的下颌颈几乎没有应力的分布。结论下颌骨应力的分布与骨折的发病率相关,不同年龄下颌骨应力的分布与骨折的高发年龄相关。

关键词: 下颌骨, 有限元, 应力分布, 年龄

Abstract: Objective To analyze age-related mandible stress distribution due to midline force. Methods Mandibles of children, adults, and elderly individuals were scanned by spiral CT to establish three-dimension imaging models with mesh elements by MIMICS software and HYPERMESH software. The mandible stress distribution was analyzed using ANSIS software. Results There was no significant difference in mandible stress distribution in various age groups with the greatest stress distribution (Von Mises) present at the mandible angle. Although there was stress present at the mandible neck in adults, no such mandible neck stress was found in children and elderly individuals. Conclusion Mandible stress distribution is closely related to the incidence of fracture in various age groups, i.e., more stress and more fracture.

Key words: mandible, mesh element, stress distribution, age