Abstract
The aim of this study will be to evaluate, through scanning electron microscopy (SEM), the cleaning and remaining material of isthmus in mesial canals of mandibular molars using two solutions, 2.5% NaOCl and 2% chlorhexidine gel, with four different agitation protocols: Passive ultrasonic agitation (PUI) with an ultrasonic insert, with the EQ-S device, with the XPendo Finisher file and wi…