Single-visit versus two-visit endodontic treatment for postoperative pain in asymptomatic non-vital mandibular premolars.

Postoperative pain is one of the primary problems in endodontic treatment and the ideal protocol for managing non-vital teeth through single-visit or multiple-visit endodontic treatment remains unsettled. Therefore, it is of interest to compare postoperative pain following single-visit endodontic therapy using 5% Iodine Potassium Iodide (IKI) as a final irrigant with that is following two-visit treatment using calcium hydroxide as an intracanal medicament. Seventy asymptomatic non-vital mandibular premolars were randomly assigned to two groups. Postoperative pain was assessed using Visual Analog Scale at 24, 48, 72 hours and one week after obturation. Both groups showed a similar trend of pain reduction over time. The mean pain scores were slightly lower in the IKI group at all intervals, though the differences were not statistically significant.