Apically extruded debris and irrigant with two <scp>N</scp>i‐<scp>T</scp>i systems and hand files when removing root fillings: a laboratory study

Abstract

All the instruments produced apically extruded debris and irrigant. The two Ni-Ti instruments produced less apically extruded debris and irrigant than hand files. A 1.5% agar gel can provide resistance to apically extruded debris and irrigant and may represent the clinical situation better than the empty tube model.