Evaluation of Fatigue Life for Dental Implants Using FEM Analysis

The purpose of this study is to numerically analyze a 3D model an implant under fatigue loads. A bone and V shape were modeled using SolidWorks2008 software. In order obtain exact model, the was assumed as linear orthotropic material. Mechanical loads applied in terms fastening torque abutment mastication force at top crown. tightened into by applying 35 N.cm causing tensile stress within screw preload that harmful not only for life abutment, but also stability implant-abutment interface. 700 N angle 30 degrees vertical direction mechanical analysis results showed critical component system failure. This due fact preloads originated from torque. presented abutment. Fatigue calculated based on Goodman, Soderberg, Smith–Watson–Topper (SWT), Marrow theories. According prediction, screws may fail after about 3 × 105 cycles. predicted Goodman theory are very good accordance with clinical data.