Introduction: The purpose of this study was to compare the effectiveness of sonic activation and syringe irrigation of 5.25% sodium hypochlorite in removing the ( ) biofilm.
Methods And Materials: Root canals of 54 extracted human single-rooted central incisors were prepared with ProTaper S1-S2-F1-F2 and Gates Gliden burs size 1, and 2 at the working length.