Incidence of pain associated with clinical factors during and after root canal therapy. Part 1. Interappointment pain

Patients who begin endodontic therapy with no symptoms may experience pain during therapy or after obturation of the canal system. A clinical study was conducted to determine whether any clinical factors or conditions are associated with an increased incidence or degree of interappointment or postobturation pain. Of 229 patients evaluated in part 1 of this study, 28.8% had slight interappointment pain and 15.7% had moderate to severe pain. Statistical analysis showed no significant relationship between interappointment pain and any of the analyzed clinical factors or conditions.