Table 2. Multiple comparisons of shear bond strength (SBS) values between groups using Tukey test .

Group	AM		AC		LM		LC
	P- value	Sig	P- value	Sig	P- value	Sig	P- value	Sig
AM	-	-	0.118	NS	0.000	*	0.000	*
AC	-	-	-	-	0.000	*	0.000	*
LM	-	-	-	-	-	-	0.117	NS
LC	-	-	-	-	-	-	-	-
AM (acid etching/ metal brackets), AC (acid etching/ ceramic brackets), LM (laser etching/ metal brackets) and LC (laser etching/ ceramic brackets). NS: not significant; *: P- value < 0.05