This document discusses implant biomechanics and treatment planning. It notes that implant overload can lead to bone loss and failure if excessive loads are placed on implants during treatment planning. Linear implant arrangements are less predictable than curvilinear arrangements, especially in posterior areas with heavy biting forces. The number of implants, their arrangement, angulation, length, diameter and the quality of surrounding bone all influence the load bearing capacity of implant restorations. Treatment plans must be designed to minimize non-axial forces and prevent implant overload.