Abstract
Objective: To evaluate the antimicrobial action of passive ultrasonic irrigation (PUI) or conventional irrigation (CI) of NaCl 2.5% and 17% EDTA or QMiX after biomechanical preparation on the viability of mixed biofilms and neutralization of endotoxins in root canals ex vivo. Material and Methods: Ninety-six unirradicular human roots with single and straight canal will be selected and inf…