Mixture of alkaline tetrasodium EDTA with sodium hypochlorite promotes invitro smear layer removal and organic matter dissolution during biomechanical preparation

摘要

AimThe aim of this study was to determine the following: (i) the quantity of free chlorine in mixtures of equal proportions of sodium hypochlorite (NaOCl) with trisodium ethylenediaminetetraacetic acid (EDTAHNa(3)) and alkaline tetrasodium ethylenediaminetetraacetic acid (EDTANa(4)); (ii) organic matter dissolution; and (iii) the time necessary to remove the smear layer by these irrigants alone and when mixed.