Ex vivo study of different final irrigation protocols against mature biofilms in root canal system disinfection
In endodontics the main objective is the debridement and disinfection of the root canal system. The purpose of this study was to evaluate the effectiveness of final irrigation protocols using different irrigation systems, with and without using sodium hypochlorite (NaOCl) as an irrigant, in promoting the disruption of mature biofilms in moderately curved root canals. Sixty mesial roots from extracted human mandibular molars were used. The root canals were contaminated with a standard strain of Enterococcus faecalis for 21 days.