Fig. 2From: Effect of sintering time on the marginal and internal fit of monolithic zirconia crowns containing 3–4 mol% Y2O3Silicone replica under light microscopy. Purple color indicates cement thickness. The yellow marked areas represent the measurement points for marginal and internal gap of the crowns. Marginal gap = (points 1), Internal gap = (point 2,3,4), Total cement thickness = (points 1, 2, 3, 4)Back to article page