AIM: to study the stress distribution of periodontalmembrane of fixed abutment tooth with different thickness, and provide theoretical basis in clinic.
目的：研究固定桥基牙牙周膜厚度不同时牙周膜内的应力分布，为临床工作提供理论依据。
2
Without the protection of periodontalmembrane, we should pay more attention to the occlusion design, controlling the value and direction of occlusal force exerted on DE.
该结构缺乏牙周膜组织，故应通过咬合设计控制种植义齿咬合力大小及方向对种植体加以保护。
3
Stress distribution of periodontalmembrane loaded with the same vertical and horizontal forces was analyzed during different thickness of periodontal membranes around abutments.