A major problem in implant biomechanics is to unravel the biologic significance of the nonuniform stresses around implants,and to determine when the stress in bone around an implant exceed danger limits. Implant biomechanics should familiarize the clinician with key issues to be taken into consideration when using oral implants.It should also provide some analytical and computational tools that will help clinician do better case planning and evaluation.It should also help clinician understand the biomechanical reasons for success verses failure of implants.

Key words: Implant, forces, peri-implant tissue.