Research Article

Effects of Different Thickness Combinations of Core and Veneer Ceramics on Optical Properties of CAD-CAM Glass-Ceramics

Table 3

Mean T, T%, TP, CR, and values of various specimen assemblies with different core-veneer combinations.

Mean(SD)
TT%TPCR

EM 126.49 (0.79)74.31 (0.88)2.41 (0.025)0.64 (0.013)51.87 (0.47)33.26 (0.84)
EM 225.12 (0.92)72.76 (1.17)2.39 (0.013)0.65 (0.004)50.80 (1.19)33.18 (0.61)
EM 322.51 (0.97)69.61 (1.25)2.37 (0.034)0.66 (0.013)50.86 (0.78)34.04 (0.82)
EP 129.64 (0.45)75.97 (0.47)2.47 (0.005)0.62 (0.002)59.22 (0.59)36.55 (0.37)
EP 226.60 (1.11)72.81 (1.30)2.45 (0.009)0.64 (0.004)59.41 (0.60)37.77 (0.40)
EP 322.60 (1.11)67.79 (2.33)2.40 (0.011)0.67 (0.005)59.64 (0.31)39.87 (0.44)

P (material)<.0010.941<.001<.001<.001<.001
P (thickness)<.001<.001<.001<.0010.321<.001
P (mat.thick.)<.001<.050.156<.05<.05<.001

: lithium disilicate glass-ceramic, EP: leucite-reinforced glass-ceramic
with superscripts indicate statistically significant differences (p > 0.05) according to the post hoc test (Tukey multiple comparison test was used for statistical analysis).
-values were obtained from two-way ANOVA.