Avaliação biomecânica de resistência ao torque de inserção de diferentes tipos de implantes e chaves de inserção

Abstract

A positive prognosis for the future stability of osseointegration is achieved at the timeof implant placement, creating the possibility of immediate loading. Considering the number of implant systems on the market, it should be understood the mechanical limit to avoid risky situations, when high levels of insertion torque is applied. The aim of this study was to quantify the torque resistance of different implant systems and their connected devices using in vitro tests of torsion, we use for this purpose two brands of implant well known, and the same external hexagon, morse taper, connecting internal and external hexagon implant and adapter, quantifying the breakdown torque, angle deformation, and macroscopic elastic limit.