Table 1.

The Mean±SD of cleaning score at the cervical, middle and apical thirds. Different superscribed symbols show significant differences (P<0.05)

Group	Cervical third	Middle third	Apical third
Mtwo	1.35±1.04*	1.15±0.93*	0.80±0.69*
K-file	2.20±0.52*¥	1.75±0.55*	1.00±0.72*
Saline	2.50±0.51¥	2.70±0.47¥	2.30±0.73¥