Effects of the Thickness Ratio of Zirconia–Lithium Disilicate Bilayered Ceramics on the Translucency and Flexural Strength

Abstract

At the same total thickness, increasing the zirconia core thickness decreased the translucency and increased the three-point flexural strength. Bilayered ceramic specimens with low zirconia ratios exhibited translucency similar to that of monolithic lithium disilicate ceramic but a higher flexural strength.