Table 2.

Intergroup comparison of the push-out bond strength

	Blood	AlCl3	FeSO4	Laser	Saline
Group 1 blood
Mean difference	-	−0.700	6.45	0.536	4.96
P	-	0.997	0.036*	0.999	0.163
Group 2 AlCl3
Mean difference		-	7.15	1.236	5.661
P		-	0.016*	0.978	0.084
Group 3 FeSO4
Mean difference			-	−5.917	−1.49
P			-	0.064	0.956
Group 4 laser
Mean difference				-	4.425
P				-	0.257
Group 5 saline
Mean difference					-
P					-

*Statistically significant difference