Non-Surgical Endodontic Retreatment of a Maxillary Second Molar with Perforation Repair

A 47-year-old patient presented with pain on chewing associated with a previously root canal-treated maxillary second molar. Clinical and radiographic examination revealed: Short and inadequate root canal obturation. Iatrogenic perforation. Persistent apical pathology. After careful diagnosis, non-surgical endodontic retreatment was selected as the treatment of choice to preserve the tooth. Clinical Procedure Rubber dam isolation. Removal of the previous root canal filling. Careful management and repair of the perforation. Working length determination using an electronic apex locator with radiographic confirmation. Thorough cleaning and shaping of the root canal system. Irrigation protocol using sodium hypochlorite, saline, and EDTA. Perforation repair with Bio-C Repair. Radiographic verification of master cone adaptation confirmed accurate working length and canal fit prior to obturation. Final obturation…