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Preliminary laboratory evaluation of bicomponent customized zirconia abutments.

The purpose of this descriptive study was to analyze the behavior of a bicomponent custom-made zirconia abutment used with an internal connection implant system. The microscopic marginal fit and specific mechanical characteristics of 20 titanium platform and zirconia abutment complexes were evaluated. Scanning electron microscope analysis showed mean values of 10.03 microm for the horizontal gap and 4.419 microm for the vertical gap for the components. The traction test revealed a mean maximum load value of 190 N, whereas the bending test showed a mean maximum load value of 436 N.