Surface Analysis and Spectrophotometric Evaluation of Different Esthetic Restorative Materials Frequently Exposed to a Desensitizing Agent

Table 3

ANOVA and post hoc tests of the color difference results for the different restorative materials.

Test group	Mean ± SD	value	value
RMGIC (Ib)	7.24 ± 0.32^a	79.41	<0.0001
Amalgomer CR (IIb)	7.28 ± 0.7^a
Nanohybrid resin composite (IIIb)	1.94 ± 0.63^b
Bulk-fill resin composite (IVb)	2.49 ± 1.07^b

Means with the different superscript letters are significantly different at  ≤ 0.05.