[3-Dimensional finite element analysis of single implant-supported prosthesis with three different occlusal designs]

This study was directed at analyzing the stress distribution of the implant in three different models whose cusp inclinations are 45, 35, 25 degrees respectively; the aim was to improve the success rate of implant rehabilitation. The method of is 3-dimensional finite element analysis (3D-FEA) was adopted. A volunteer's mandible was scanned using helix computer tomography and then we got the data of the mandible's margin in digital instrument. ANSYS program files were prepared using these data. Three models were created, meshed, analyzed in computer. Stress concentration was located on the cortical bone around the neck of implant and apical area of implant. Among the three designs, 25 degrees inclination of cusp was appropriate and in such a situation Von Mises stress was minimal.