An In Vivo Evaluation of Postoperative Pain after Root Canal Instrumentation Using Manual K-files and Kedo-S Rotary files in Primary Molars

To determine postoperative pain after root canal instrumentation using manual K-file and rotary Kedo-S files in primary molars. Thirty-six primary mandibular molars from 4- to 8-year-old children requiring pulpectomy were randomly split into two groups of 18 teeth each, that is, manual file K-file (Group I) and Kedo-S rotary file (Group II). Children's pre- and postoperative pain was assessed using a four-point scale at different time intervals. From the result of the present study, it was observed that the Kedo-S group showed significantly less pain after 24, 48, and 72 h. It was concluded from the present research that patients enrolled in the Kedo-s group experienced less pain.