Table 4.

Mean difference and standard error (SE) of microtensile bond strength in subgroup analyses

Mode	Composite	Adhesive 1	Adhesive 2	Mean Difference (1-2)	SE	P
Etch and rinse	Light-cure	Single Bond Universal	G-Premio	-9.253	5.33	0.257
			Single Bond 2	-4.008	5.33	1
		G-Premio	Single Bond 2	5.245	5.33	0.983
	Dual-cure	Single Bond Universal	G-Premio	4.938	5.33	1
			Single Bond 2	-13.365*	5.33	0.041
		G-Premio	Single Bond 2	-18.303*	5.33	0.003
Self-etch	Light-cure	Single Bond Universal	G-Premio	19.746*	5.33	<0.001
			Single Bond 2	-	-	-
		G-Premio	Single Bond 2	-	-	-
	Dual-cure	Single Bond Universal	G-Premio	7.654	5.33	.154
			Single Bond 2	-	-	-
		G-Premio	Single Bond 2	-	-	-