Adhesion Bridges (acid-etched retainers) have many advantages comparing with conventional fixed prosthodontic treatments. Although they have been applied in many clinical cases, the rational guidance for the design of metal framework has not been studied in terms of resistance for pealing loads.
In our study, the effect of thickness and shape of metal frameworks were evaluated by comparing pealing strength (maximum loads under pealing test) using Co-Cr alloy frameworks and acrylic resin block for the substitute for the human teeth. In the results, thicker metal framework showed greater pealing resistance and the proximal extension could be the help for increasing pealing strength.
