Comparative Evaluation of Three Different Implant Abutment Connection on Stress Distribution Around Three Different Implant System Under Functional Load: A 3-D Finite Element Analysis

Objective: To compare and evaluate the stress distribution around implant under functional load in Conical-Hex Taper, Octa Taper& Tri channel internal implant abutment connection. Material & Methods: Three different implant abutment connection were selected.The following softwares ANSYS Version: 14.5 for FEA; Meshing software: Hypermesh 11; and CATIAto produce computerized models of implants and for mandibular modeling were used. Result:The samples were evaluated using three-dimensional FEA analysis. It was found that stress at 200 N, 100 N with 15 tilt was found to be highest in Sample A followed by Sample C and Sample B, and the difference was statistically insignificant. Conclusion: The tri-channel internal connection showed maximum stresses and least by the internal conical-hex Morse Taper and internal octa-morse taper connection.