Table 5: Intergroup comparison done using Tukey’s HSD between the groups and subgroups

Groups		Subgroups		Observations		Mean ± S.D.		Groups Mean ±S.D.		Std. error
I (Shofu)		Nanofilled-IA		10		0.0799 ± 0.005664		0.1377 ± 0.009418		0.0017
		Microfilled-IB		10		0.1361 ± 0.002148
		Hybrid-IC		10		0.1970 ± 0.001606
II (Sof-Lex)		Nanofilled-IIA		10		0.04303 ± 0.005106		0.0747 ± 0.03901		0.0071
		Microfilled-IIB		10		0.06847 ± 0.00351
		Hybrid-IIC		10		0.11254 ± 0.03039
III (Enhance)		Nanofilled-IIIA		10		0.1457 ± 0.001863		0.3108 ± 0.004146		0.00076
		Microfilled-IIIB		10		0.5419 ± 0.0015
		Hybrid-IIIC		10		0.2446 ± 0.001132