【摘要】 目的:建立纤维加强复合树脂夹板及下前牙的三维有限元模型,并分析其应力。方法:采用CT扫描技术,应用Mimics等软件,建立树脂夹板固定前后的三维有限元模型。结果:构建的夹板修复前后的几何模型与实际情况接近,共1411个节点,4718个单元;不同牙周状况下前牙树脂夹板固定后,VonMises应力的最大值均减小;戴用夹板后,垂直载荷时,下前牙Von Mises应力主要集中在舌侧区域。结论:夹板模型具有较高的相似性,且能有效分散合力。更多还原

【Abstract】 Objective: To set a three-dimensional finite element model for fibre strengthen composite resin splint and lower anterior teeth,and analyze the stress as well.Methods: The three-dimensional finite element models of the resin splint fixed before and after are established by CT scaning,Mimics software.Results: The constructed geometry models are similar to the truth,including 1411 nodes and 4718 units.In different periodontal conditions,the max Von mises stress decrease after the resin splint being fixed.After the resin splint being fixed,the Von Mises stress of lower anterior teeth mainly concentrate in the lingual area in Vertical load.Conclusion: Splint model has a high similarity and effectively spreads the occlusal force.更多还原