Avaliação da adaptação e resistência à remoção de pilar impactado em implante dentário cone Morse de pequeno diâmetro

Abstract

Dental implants of alloy Ti6Al4V (grade V) of narrow diameter came solve a constant situation in the current implantology, which would be the installation of implants in reduced mesiodistal spaces, mainly to allow a final prosthesis with appropriate aesthetic requirement. Because it is a 2-part system, the installation of the abutment, made in the same alloy, is performed by impaction because its stabilization through a screw becomes inconsistent due to difficulties in machining such tiny components. The abutment after impaction in various ways in the implants were sectioned at 2 mm from the implant platform and the two halves were observed in a scanning electron microscope (SEM), in order to measure the gap or the space between the implant/ abutment. Similarly, after the abutments were impacted in the implants, they were subjected to tensile test to evaluate their required removal force. This study aimed to evaluate the accuracy, the juxtaposition of these parts in the Morse-type connection and the force required to remove the abutment in order to check whether they were greater than the force of chewing.