Aim: The aim of this study was to clinically compare the postoperative pain after Vibringe sonic irrigation system and conventional needle irrigation during root canal treatment in single-rooted teeth . Methods: A total of 18 patients with symptomatic irreversible pulpitis in need of nonsurgical endodontic retreatment were randomly divided into 2 groups (n = 9) . Patients were carefully diagnosed and checked for the eligibility criteria . Irrigation in (group A) was delivered and sonically activated by Vibringe and Irrigation in (group B) was done using conventional needle. The presence of postoperative pain was assessed 6, 12, 24, and 48 hours after treatment according to the NRS where; 0; No pain, 1-3; mild pain, 4-6; moderate pain, 7-10; severe pain “severe pain, analgesic had no effect in relieving the pain". Data were analyzed using the Mann-Whitney U,Friedman's test, and Fisher's Exact tests. Results: Postoperative pain was non significantly different in the Vibringe group in comparison with the conventional needle group (P >.05) on all time intervals “ 6 -12-24 and 48 hours" (P-value = 0.753) . Pain scores from base line to 6 hours post-operatively showed statistically significant decrease in both Vibringe and Conventional needle irrigation group (P-value <0.001).
Conclusions: The sonically activated Vibringe irrigation system and conventional needle irrigation are equally safe with low incidence of post-operative at 6, 12 , 24 and 48 hours intervals.