Effect of Veneering and Hydrothermal Aging on the Translucency of Newly Introduced Extra Translucent and High Translucent Zirconia with Different Thicknesses

Table 2

Mean TP values and standard deviations of veneered (XTV, HTV) and nonveneered (XT, HT) specimens.

Thickness	Aging	XTV	XT	HTV	HT
0.5	Before		25.84 (0.66)^A,a		19.43 (0.50)^B,a
	After		21.45 (0.69)^α,b		16.06 (0.45)^β,b
; 1	Before	21.98 (1.01)^C,c	21.72 (0.40)^C,c	17.43 (0.82)^D,c	14.95 (0.33)^E,c
	After	19.02 (1.16)^γ,d	18.36 (0.80)^γ,d	15.46 (0.93)^δ,d	12.35 (0.41)^ε,d
; 1.5	Before	17.24 (0.87)^F,e	16.82 (0.46)^F,e	14.36 (0.66)^G,e	10.65 (0.51)^H,e
	After	15.04 (1.03)^ζ,f	14.24 (0.49)^ζ,f	12.89 (0.60)^η,f	8.64 (0.36)^θ,f
; 2	Before	12.34 (1.10)^I,g	11.63 (0.51)^I,g	9.54 (0.93)^J,g	6.67 (0.24)^K,g
	After	10.51 (1.22)^ι,h	9.61 (0.48)^κ,h	8.38 (0.60)^λ,h	5.04 (0.34)^μ,h

Same superscript uppercase letters and symbols indicate no statistically significant difference within each row. Same superscript lowercase letters indicate no statistically significant difference within each column ().