6mm长短种植体表面设计对骨界面应力分布的影响  

Effect of different surface design of 6mm-long short implant on stress distribution in implant-bone interface

作　　者：薛洪权[1] 周延民[2] 金青松[1] 刘树发[3] 

机构地区：[1]延边大学基础医学院,133000 [2]吉林大学口腔医院种植中心 [3]佳木斯大学附属口腔医院颌面外科

出　　处：《现代口腔医学杂志》2010年第4期273-275,共3页Journal of Modern Stomatology

摘　　要：目的探讨6mm长短种植体表面设计对种植体周围骨组织应力分布的影响,为指导短种植体临床应用和开发新产品提供理论依据。方法建立4种包含不同表面设计6mm长短种植体的上颌后区骨块三维有限元模型即V形螺旋设计、反支撑形螺旋设计、支撑形螺旋设计和鳍式非螺旋设计模型,对所有模型进行200N垂直和100N颊腭向加载,分析比较周围骨组织的应力分布和Von-Mises应力峰值。结果在垂直和侧向加载时,鳍式非螺旋设计都表现出了最好的应力分布云图,EQV应力峰值也明显小于其他三种设计。结论 6mm长短种植体最佳表面设计为鳍式非螺旋设计,避免应用V形螺旋设计。Objective To investigate the effect of different surface design of 6mm-long short implant on stress distribution in implant-bone interface.Methods Four three-dimensional finite element models of different surface design were created： V-shape spiral design,reverse buttress spiral design,buttress spiral design and fin formula no-spiral design.The stress distribution and the maximum Von-Mises stress of all models were compared and analyzed under 200N axial and 100N oblique loads.Results Under axial and oblique load,fin formula no-spiral design showed the best stress distribution and the minimum Maximum Von-Mises stress.Conclusion Fin formula no-spiral design is the optimal design in a 6mm-long short implant but V-shape spiral design should be avoid.

关 键 词：短种植体 应力分布 表面设计 

分 类 号：R783.6[医药卫生—口腔医学]