Two-body Wear Performance of Zirconia Opposing e.max Ceramic

This study examined the two-body wear resistance of opposing e.max and Zirconia with two different surface treatments to evaluate the possible clinical implications of surface finish. Utilizing a ball-on-disc tribometer and artificial saliva, glazed and glazed-then-polished samples of zirconia and lithium disilicate were tested. Surface analysis was performed using white-light interferometry and scanning electron microscopy. The volume loss, surface roughness and coefficient of friction of the samples were analyzed.