Root canal retreatment for four root canals is a complex endodontic procedure performed when a previously treated tooth with multiple canals shows signs of recurrent infection or discomfort. The treatment involves removing old filling material from all four canals, followed by thorough cleaning, disinfection, and precise refilling with biocompatible materials.

This procedure addresses persistent bacteria, complex canal anatomy, or leakage from prior treatment. By sealing all canals effectively, retreatment helps eliminate infection, relieve symptoms, and preserve the natural tooth. The approach is carefully planned to ensure proper healing, long-term stability, and patient comfort.