Incidence of postoperative pain after one-appointment endodontic treatment of asymptomatic pulpal necrosis in single-rooted teeth

Abstract Sixty single-rooted teeth were endodontically treated by two postgraduate students for asymptomatic pulpal necrosis. Thirty were treated in a single visit each, and a control group of 30 were treated in three visits each. Clinical and radiographic evaluations were made. A subjective questionnaire was used to record pain experience. No significant difference in the incidence of pain existed between the single- and multi-visit groups.