Abstract
The aim of this study will be to evaluate the effectiveness of the association of pressurized carbon dioxide (CO2) with sodium hypochlorite (NaOCl) in inactivating the biofilm of Enterococcus faecalis present inside the root canals through microbiological culture. For this purpose, 40 extracted human lower premolars will be contaminated with E. faecalis for a period of 21 days. 4 groups w…