COMPARITVE STUDY OF SMEAR LAYER REMOVAL AND ANTIBACTERIAL ACTIVITY OF SILVER, CHITOSAN NANOPARTICLES AND SODIUM HYPOCHLORITE AGAINST ENTEROFECALIS WHEN USED AS ROOT CANAL IRRIGANTS- IN VITRO STUDY

Background: As a very resistant microorganism in infected root canals, Enterococcus faecalis (E. faecalis) can stubbornly survive lethal challenges and invade dentinal tubules, making it the most persistent pathogen canal treatment. is commonly encountered detected infections. These bacteria possess certain virulence factors, tubules resist nutritional deprivation. Proper irrigation an essential step for success therapies which achieved by using excellent endodontic irrigants. Aim: To evaluate antimicrobial efficacy of Sodium Hypochlorite (NaOCl), Silver Diamine Fluoride (SDF), Chitosan Nanoparticles (CNPs) irrigants against bacterial strain Faecalis agar well diffusion method. Materials Methods: In this in-vitro study, test materials were manipulated accordance with manufacturer’s instructions. The properties evaluated method (ATCC 29212). 0.25 mL each irrigant was placed on to 6.5 mm diameter blotting papers 7 wells Mueller Hinton plates. Later, E. strains inoculated sterile cotton swab Results: p-value showed greatest zone inhibition followed SDF respectively (p SDF, Bioactive Glass respectively. Conclusion: effective ,whereas least efficacious compared rest Faecalis.