Table 2.

Comparison of P value between groups for residual smear layer

Canal level	Study group	Significance
Coronal	Saline+XPF. NaOCL+XPF	1.000
	Saline+XPF. EDTA+XPF	0.026
	Saline+XPF. EDTA+NaOCL+XPF	0.000
	Saline+XPF. control	0.000
Middle	Saline+XPF. NaOCL+XPF	1.000
	Saline+XPF. EDTA+XPF	0.000
	Saline+XPF. EDTA+NaOCL+XPF	0.015
	Saline+XPF. control	0.000
Apical	Saline+XPF. NaOCL+XPF	1.000
	Saline+XPF. EDTA+XPF	0.005
	Saline+XPF. EDTA+NaOCL+XPF	0.002
	Saline+XPF. control	0.000

The significance level is 0.05