中国实用口腔科杂志2017，Vol.10Issue(3)：142-145,4.DOI:10.19538/j.kq.2017.03.003
国产标准型人工颞下颌关节假体生物力学分析
Biomechanical analysis of Chinese standard artificial temporomandibular joint
摘要
Abstract
Objective To study the stress distribution and displacement of the Chinese standard artificial temporomandibular joint.Methods ANSA,Hypermesh and Abaqus softwares were used to establish finite element model of condylar defect,which was reconstructed separately by Chinese and Biomet standard artificial temporomandibular joint.The stress distribution and displacement of the jaw and Chinese and Biomet standard artificial temporomandibular joints were analyzed by loading maximal bite force on the model.Results The maximum stress of four kinds of Chinese standard prostheses were 54MPa、79MPa、64MPa and 72MPa,while maximum stress of Biomet standard prosthesis was 78MPa.The stress of the jaw was under 20MPa in each model,and the displacement of prosthesis and jaw was under 0.05mm.The maximum stress of Chinese standard prosthesis occurred at the first posterior screw hole,whereas for Biomet standard prosthesis it was located at the neck of the condyle.Conclusion The stress is distributed uniformly in Chinese standard prostheses,which can avoid prosthesis fracture and bone absorption caused by excessive stress.关键词
人工颞下颌关节/生物力学分析/国产标准型Key words
artificial temporomandibular joint/biomechanical analysis/Chinese standard分类
医药卫生引用本文复制引用
张露珠,何冬梅,杨磊,朱华诞,常雨丝,章文玥,杨智,詹伊宁..国产标准型人工颞下颌关节假体生物力学分析[J].中国实用口腔科杂志,2017,10(3):142-145,4.基金项目
国家自然科学基金(81472117) （81472117）
上海交通大学医工交叉基金(YG2014MS05) （YG2014MS05）
国家级大学生创新训练项目(2015502) （2015502）
上海市科学技术委员会科研计划项目(14DZ2294300) （14DZ2294300）
