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采用三维各向异性有限元分析法，研究人体硬组织替换材料弹性模量变化对口腔种植体界面骨支持组织应力分布和种植体长轴位移影响。将骨支持组织假设为连续的、非均质的和各向异性的线弹性材料，并设定种植体材料弹性模量的变化区间在１００００～４０００００ＭＰａ。实验结果表明随着材料的力学性能弹性模量在给定区间内的变化，种植体界面骨支持组织的应力分布和种植体长轴的位移发生相应的改变。在种植体承受垂直向动态和静态载荷为主时，随着材料弹性模量由大变小，界面骨支持组织的应力强度也随之由大变小，且当材料的弹性模量在１００００～２７０００ＭＰａ时，界面骨支持组织的应力强度相对达到较小值。本研究的结果为口腔种植材料力学性能弹性模量的选择和力学相容性的评价提出了参考依据
Three-dimensional anisotropic finite element analysis was used to study the influence of the elastic modulus of the replacement material on the stress distribution and the long axis displacement of the dental implant in oral implant. The bone-supported tissues were assumed to be continuous, non-homogeneous and anisotropic linear elastic materials and the elastic modulus of the implant material was set to vary between 10,000 and 400,000 MPa. The experimental results show that with the change of the mechanical properties of the material in a given interval, the stress distribution on the implant-supported bony tissue and the displacement of the long axis of the implant change accordingly. When the implant is subjected to vertical dynamic and static loads, as the elastic modulus of the material decreases from large to small, the stress intensity of the interface bone support structure also decreases from large to small, and when the elastic modulus of the material is between 10000 ~ At 27000MPa, the stress intensity of the interface bone support structure reaches a relatively small value. The results of this study provide a reference for the selection of mechanical properties of the dental implants and evaluation of the mechanical compatibility