中国临床解剖学杂志 ›› 2014, Vol. 32 ›› Issue (1): 72-75.doi: 10.13418/j.issn.1001-165x.2014.01.017

• 临床生物力学 • 上一篇    下一篇

一种新型人工颞下颌关节的生物力学分析

殷学民, 扶晟, 刘雄, 张君伟, 李子文   

  1. 南方医科大学南方医院口腔颌面外科, 南方医科大学口腔医学院,  广州  510515
  • 收稿日期:2013-09-03 出版日期:2014-01-25 发布日期:2014-02-11
  • 作者简介:殷学民(1965-),男,江西信丰人,博士,教授,硕士研究生导师 主要从事颌面缺损的仿真重建及生物力学研究
  • 基金资助:

    广东省自然科学基金(S2011010003872);广州市科技计划项目(7421165457455)

Biomechanical analysis of a new type of artificial temporomandibular joint

YIN Xue-min, FU Sheng,LIU Xiong, ZHANG Jun-wei, LI Zi-wen   

  1. Department of Oral and Maxillofacial Surgery, Nanfang Hospital ,Southern Medical University; College of Stomatology, Southern Medical University, Guangzhou 510515, Guangdong Province, China
  • Received:2013-09-03 Online:2014-01-25 Published:2014-02-11

摘要:

目的 建立下颌骨髁突缺损有限元模型,研究新型人工颞下颌关节的应力分布及位移改变。  方法 运用Mimics、Geomagic、Solidworks、ANSYS软件建立含完整牙列的下颌骨右侧髁突缺损有限元模型并分析新型人工颞下颌关节在模拟咬合力加载的情况下假体及下颌骨硬组织的应力分布和位移情况。  结果 下颌骨整体等效应力值均低于20 MPa,最大形变值不超过0.05 mm。  结论 新型人工颞下颌关节能避免过大应力导致的假体断裂和骨质吸收,具有良好的生物力学特性。

关键词: 新型, 人工颞下颌关节, 生物力学  

Abstract:

Objective Mandibular condylar defects in the finite element model is established to study the new artificial temporomandibular joints stress distribution and displacement of the change.    Methods    Mimics, Geomagic, Solidworks, ANSYS software were used to establish complete denture mandibular condylar defects on the right side of the finite element model and analyze the new TMJ condylar prosthesis in simulation of the bite force load of mandibular condylar prosthesis and hard tissue stress distribution and displacement. Results The whole Mandibular  equivalent stress values were smaller than 20 Mpa, the maximum deformation value was smaller that 0.05 mm. Conclusions New artificial temporomandibular joints can avoid prosthesis fracture and bone absorption  caused by excessive stress , and has a good biomechanical properties.

Key words:  New type, Artificial temporomandibular joint, Biomechanics

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