Rate of Enterococcus Faecalis in Saliva and Failed Root Canal Treated Teeth—In Vivo Study

Various bacteria were discovered in the root canal system that had been treated, where Enterococci were prevalent and heavily to blame for the failure. For the purpose of achieving clinical success, research is required to determine the prevalence of Enterococcus faecalis in the space between saliva and a root canal. This observational cross-sectional analytical study’s objective was to examine the prevalence of E. faecalis in saliva and in the root canals of teeth that required retreatment after prior endodontic treatment. The patient was chosen for re-RCT from the OPD of the BSMMU Department of Conservative Dentistry and Endodontics. First, a sample of saliva was taken. The carious lesion and coronal restoration were inactivated, the damaged tooth was isolated, and it was decontaminated. Without using a chemical solvent, the root canal filling was removed. A radiograph was used to measure and confirm the canal’s length. The microbiology lab received the paper points and saliva samples for culture (Enterococcus faecalis identification). According to the findings, saliva samples contained 11 (25%) and root canal samples had 27 (61.4%) instances of Enterococcus faecalis. There was a significant difference between the two samples (p 0.05). In patients who needed a repeat RCT, Enterococcus faecalis is far more common in the root canal than in the patient’s saliva.