Clinical Oral Investigations
Effect of different finishing/polishing protocols and aging on flexural strength, roughness, and surface characteristics of definitive restorative materials for CAD/CAM
Abstract Objective To evaluate the effect of finishing/polishing and aging on the flexural strength, roughness, and surface characteristics of CAD/CAM restorative materials. Materials and methods Three CAD/CAM materials were tested: Nanoceramic resin (CR), Polymer-infiltrated ceramic (PIC), and Leucite-reinforced glass-ceramic (LC). A total of 120 bars (8 × 2 × 1 mm; n = 15/group) were prepared and subjected to different finishing/polishing protocols (C: control; B: bur; BD: diamond bur + diamond-impregnated rubber …