ObjectivesThe purpose of this study was to use a confocal laser scanning microscope (CLSM) to evaluate the antibacterial e cacy of using 2.5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), Irritrol, and chitosan-coated silver nanoparticles (AgCNPs) alone or in combination with deoxyribonuclease I (DNase I) and trypsin pre-enzyme applications in dentin samples contaminated with Enterococcus faecalis (E. faecalis).
Materials and Methods144 dentin blocks with con rmed E. faecalis bio lm formation were divided randomly according to the irrigation protocol to be tested (n = 12