中国实用口腔科杂志2017，Vol.10Issue(7)：411-416,6.DOI:10.19538/j.kq.2017.07.006
不同防旋转基台设计对种植义齿应力分布影响的三维有限元分析
Three-dimensional finite element analysis on the stress distribution of implants with different anti-rotation abutment design
摘要
Abstract
Objective To compare the stress distribution and the stress peak of different anti-rotation design of the implant abutment and to provide reference for optimizing the structure design and clinical application of the implant.Methods According and to Korea Dentium system,three-dimensional finite element analysis model of triangle,hexagon and octagon anti-rotation abutments were established by Solidworks.The Von Mises stress distribution and stress peak of implant,superstructures and surrounding bone tissue of three models under vertical loading and 45° inclined loading were analyzed by ANSYS Workbench14.0 finite element analysis software.Results Under the condition of vertical loading,the mechanical stress of implants,connecting screw and surrounding tissues was small.With the increasing angles of abutment,the stress of implants appeared an increasing trend,the stress of connecting screws appeared a decreasing trend and the stress of cortical bone and cancellous bone had little difference.The stress of hexagon and octagon abutment models was better distributed,and the stress peak of hexagon abutment model was smaller.Under the condition of 45° inclined loading,the mechanical stress of each part was greater,the stress of implants and abutments appeared an increasing trend,and with the increasing angles of abutment,the stress of connecting screw appeared a decreasing trend and the stress of cortical bone and cancellous bone had little difference.The results were similar with vertical loadings.Conclusion The triangle and hexagon abutment design may reduce the mechanical stress of implants,abutments and surrounding bone tissue;octagon abutment design may reduce the stress of connecting screws;the stress distribution of hexagon abutments is better.关键词
种植体/种植基台/基台结构设计/应力分析/有限元分析Key words
dental implant/implant abutment/abutment design/stress analysis/finite element analysis分类
医药卫生引用本文复制引用
张馨文,鞠晟尊,江鹭鹭,刘远美,毓天昊,阎旭,蔺增,邓春富,赵宝红..不同防旋转基台设计对种植义齿应力分布影响的三维有限元分析[J].中国实用口腔科杂志,2017,10(7):411-416,6.基金项目
辽宁省自然科学基金(20170541059) （20170541059）
辽宁省科技计划项目(2013225049) （2013225049）
沈阳市科技计划项目(F11-264-1-25) （F11-264-1-25）
