[Table/Fig-8]:

Post Hoc Test (Bonferroni) inter-group comparison of change in surface roughness (μm).

(I) Group	(J) group	Mean Difference (I-J)	S.E.	Sig.
Tooth -Enamel	GIC	-2.11(*)	0.256	<0.001**
	Composite	-0.641	0.256	0.081
	Compomer	-1.164(*)	0.256	<0.001**
GIC	Tooth -Enamel	2.110(*)	0.256	<0.001**
	Composite	1.470(*)	0.256	<0.001**
	Compomer	0.947(*)	0.256	0.002**
Composite	Tooth -Enamel	0.641	0.256	0.081
	GIC	-1.470(*)	0.256	<0.001**
	Compomer	-0.523	0.256	0.258
Compomer	Tooth -Enamel	1.164(*)	0.256	<0.001**
	GIC	-0.947(*)	0.256	0.002**
	Composite	0.523	0.256	0.258

*The mean difference is significant at the 0.05 level