Variations in the Shades of Contemporary Dental Ceramics: An In Vitro Analysis

Background: To identify and compare the shade variations of various commonly used esthetic dental ceramics by calculating their total-color-difference (ΔE) translucency parameter (TP) using a spectrophotometer. Methods: In total, 165 disc specimens from three shades (A1, B1, C1) five ceramic materials (N = 55/shade; n 11/ceramic material group) were prepared (Metal-ceramic (MC), IPS e.max press (Emax-P), layer (Emax-L), Layered Zirconia (Zr-L) Monolithic zirconia (Zr-M)). With spectrophotometer, L* a* b* values obtained. Total color differences (ΔE [(ΔL*)2 + (Δa*)2 (Δb*)2]1/2) (TP [(L*B − L*W)2 (a*B a*W)2 (b*B – b*W)2]1/2) calculated. The statistical tests included ANOVA Post hoc Tukey’s analysis (p < 0.05). Results: Significant 0.000) found between groups for ΔE. Highest ΔE (A1) Zr-L (80.18 ± 20) lowest Zr-M (62.97 1.28). For highest noted MC (76.85 0.78) Emax-L (62.13 1.49). C1, group (73.96 0 67) Emax-P (55.09 1.76). Translucency tested revealed TP (2.99 1.64) (0.35 0.16). (3.50 1.74) (0.57 0.40). (4.46 2.42) (0.58 48). Conclusions: in groups. varied according to clinical acceptability, even with selection same color/shade. color/shades do not match vita guide tabs, which they are compared most often. Shade present different lots or brands.