Endodontic Retreatment in Underfilled Root Canal of Maxillary First Molar with Chronic Periapical Abscess: A Case Report. Indian Journal of Forensic Medicine & Toxicology [Internet]. 2021 Aug. 16 [cited 2026 May 11];15(4):1970-4. Available from: https://medicopublication.com/index.php/ijfmt/article/view/16990