Objectives: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points.
Material And Methods: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit abutments were connected to the implants applying a torque of 20 Ncm, and prefabricated Co-Cr cylinders and plastic prosthetic cylinders were screwed onto the abutments, which received standard patterns cast in Co-Cr alloy (n=5).
J Appl Oral Sci
December 2010
Objective: Using strain gauge (SG) analysis, the aim of this in vitro study was quantify the strain development during the fixation of three-unit screw implant-supported fixed partial dentures, varying the types of implant-abutment joints and the type of prosthetic coping. The hypotheses were that the type of hexagonal connection would generate different microstrains and the type of copings would produce similar microstrains after prosthetic screws had been tightened onto microunit abutments.
Materials And Methods: Three dental implants with external (EH) and internal (IH) hexagonal configurations were inserted into two polyurethane blocks.
Purpose: : The objective of this in vitro study was to quantify the strain development of external hexagon and internal hexagon implant-supported partial prostheses in straight and offset implant placement configurations.
Materials And Methods: : Three external hexagon and 3 internal hexagon implants were embedded in the center of each polyurethane block. Four strain gauges were bonded on the surface of polyurethane.