Evaluation of Postoperative Pain Following Sonic and Ultrasonic Root Canal Irrigation Activation Protocols in Patients with Non-vital Teeth Associated with Apical Periodontitis (Randomized Clinical Trial

Aim: Evaluate the degree of postoperative pain in patients with necrotic teeth with symptomatic apical periodontitis in mandibular first molar teeth at 6, 12, 24, 48 and 72 hrs time interval after using different irrigation activation techniques in single-visit endodontic treatment. Material and Methods: Seventy-eight patients diagnosed with necrotic mandibular first molar with symptomatic apical periodontitis were randomly allocated into 1 of 3 separate groups (n=26); Navitip group (control), EndoUltra group, or Eddy group. After a single visit root canal treatment and a specific method of agitation, depending on each group, the patients were given a questionnaire on which the patient would mark the degree of pain in a scale from 0 to 10 at 6, 12, 24, 48, 72 hours and 7 days post-obturation. Data were statistically analyzed with a significance level of P≤0.05. Results: EndoUltra ultrasonic agitation and Eddy sonic agitation as a final irrigation protocol showed significantly lower pain values than the control group, but there was no significant difference in pain values between the experimental groups. Conclusion: There was significantly less pain associated with EndoUltra ultrasonic and Eddy sonic agitation compared to Navitip irrigation