Table 1.

The frequency of debris and Smear layer presence scores across four instruments at three root levels

Group	Score	Coronal	Middle	Apical	P-value
XP-Endo Finisher	ii	4(40%)	6(60%)	4(40%)	0.585
	iii	6(60%)	4(40%)	6(60%)
	iv	0	0	0
ProTaper	ii	4(40%)	8(80%)	0	0.004
	iii	6(60%)	2(20%)	8(80%)
	iv	0	0	2(20%)
RaCe	ii	4(40%)	7(70%)	5(50%)	0.413
	iii	6(60%)	3(30%)	4(40%)
	iv	0	0	1(10%)
Gentlefile	ii	2(20%)	3(30%)	6(60%)	0.040
	iii	8(80%)	7(70%)	2(20%)
	iv	0	0	2(20%)