Table 1.

Micro-Leakage Grades in Experimental Groups

	Grade 0	Grade 1	Grade 2	Grade 3
Group A	23(77%)	6(20%)	1(3%)	0(0%)
Group B	15(50%)	3(10%)	3(10%)	9(30%)
Group C	28(93%)	2(7%)	0(0%)	0(0%)
Group D	25(83%)	5(17%)	0(0%)	0(0%)
Group E	27(90%)	1(3%)	2(7%)	0(0%)

Group A: etching, sealant

Group B: etching, saliva contamination, sealant

Group C: etching, saliva contamination, Single bond, sealant

Group D: etching, saliva contamination, Single bond 2, sealant

Group E: etching, saliva contamination, N Bond, sealant