Effect of Repeated Firings and Thickness on Optical Properties of Variable Preshaded and Shaded Novel Translucent Zirconia Blocks

Table 3

Results of ANOVA for changes in color coordinates after repeated firings ().

Effect	Pillai value		Numerator df	Denominator df	Sig.
Number of firing	0.979	3743.595	2	161	<0.001
Number of firing block type	0.508	27.565	4	324	<0.001
Number of firing shade type	0.102	9.173	2	161	<0.001
Number of firing thickness	1.035	86.809	4	324	<0.001
Number of firing block type shade type	0.495	26.648	4	324	<0.001
Number of firing block type thickness	0.498	13.444	8	324	<0.001
Number of firing shade type thickness	0.382	19.127	4	324	<0.001
Number of firing block type shade type thickness	0.491	13.188	8	324	<0.001

ANOVA, indicates a significant difference at repeated measurements.