Fracture resistance of titanium and zirconia abutments: An in vitro study

Abstract

Statement of problem Little information comparing the fracture resistance of internal connection titanium and zirconia abutments exists to validate their use intraorally. Purpose The purpose of this study was to determine the fracture resistance of internal connection titanium and zirconia abutments by simulating cyclic masticatory loads in vitro. Material and methods Twenty-two specimens simulating implant-supported anterior single crowns were randomly divided into 2 equal test groups: Group T with titanium abutments and Group Z with zirconia abutments. Abutments were attached to dental implants mounted in acrylic resin, and computer-aided design/computer-aided manufacturing (CAD/CAM) crown..