Table 1: Change in hardness (AVHN) of the restorative materials in various immersion media

		Conventional hybrid		Nanocomposite		Compomer		Nano-ionomer		Enamel
Coke		–41.1 ± 14.9a		–69.7 ± 30.6		–94.4 ± 39.4		–126.5 ± 43.1b		–176.7 ± 52.7c
Pulpy Orange		–31.3 ± 11.6		–65 ± 51.5		–90.7 ± 166.3		–96.3 ± 33.5		–154 ± 45.8
Yakult		–27.8 ± 8.2a		–40.6 ± 10.4		–82.3 ± 14.8		–85.7 ± 17.7 b		–121.8 ± 40.7c
Rasna		–32.4 ± 3.1		–64.4 ± 11.3		–92.3 ± 34.4		–95.3 ± 20.2		–137.2 ± 41.5
Total		–33.2 ± 11.1		–59.9 ± 31.9		–90 ± 84.2		–100.9 ± 33.1		–147.4 ± 48.3

a, b, c—difference is significant between the same alphabet groups; (–) sign depicts decrease in microhardness