Comparative evaluation of novel automated irrigation devices with side vented needle irrigation on bacterial CFU counts in nonvital teeth

Syringe needle irrigation is used frequently to deliver root canal disinfectants. However, conventional syringe needle irrigation has its potential drawbacks. The current study, hence, aimed at assessing the real‐time benefit of using conventional needle irrigation as compared to a novel automated irrigation device in patients undergoing root canal treatment. Methods: It is a prospective study where 45 patients with single‐rooted teeth were allocated into three groups according to the respective test disinfection technique used for disinfection: group I: novel automated irrigation device, group II: open‐ended flat needle irrigation, and group III: side‐vented needle irrigation. Pre‐ and postoperative culture samples were obtained and transferred immediately for microbial analysis. Results: A difference was noted among the groups (P < 0.05) in the antimicrobial efficacy of aerobic and anaerobic bacteria. Conclusion: The novel automated irrigation device was better than syringe needle irrigation in microbial reduction.