Postoperative pain after single and multiple visits for root canal therapy in necrotic teeth.

Postoperative pain remains a key concern in root canal therapy for necrotic teeth, with ongoing debate over the optimal number of treatment visits. This randomized clinical trial compared pain outcomes between single-visit and multiple-visit endodontic treatments in 80 patients. Pain was assessed using the Visual Analog Scale at 6, 24, 48, and 72 hours postoperatively. Both groups showed a progressive decline in pain with no statistically significant difference at any time point. The results suggest that single-visit therapy is as effective as multiple-visit protocols in managing postoperative pain in necrotic teeth.