Sara Amanpour - Assistant Professor, Department of Oral and Maxillofacial Pathology, School of Dentistry, Oral and ‎Dental Diseases Research Center AND Kerman Social Determinants on Oral Health Research ‎‎Center, ‎Kerman University of Medical
Maryam Raoof - Assistant Professor, Laboratory of Molecular Neuroscience, Neuroscience Research Center, ‎Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
Jahangir Haghani - Associate Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Oral ‎and Dental Diseases Research Center AND Kerman Social Determinants on Oral Health Research ‎‎Center, Kerman University of Medical Sciences,
Sorena Fardisi - Assistant Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Shiraz ‎University of Medical Sciences, Shiraz, Iran
Saeedeh Sadr - Assistant Professor, Persian Gulf Oral and Dental Diseases Research Center, Hormozgan University ‎of Medical Sciences, Bandar Abbas, Iran
Farahnaz Nazari - MSc Student, Department of Endodontics, School of Dentistry, Kerman University of Medical ‎Sciences, Kerman, Iran

BACKGROUND AND AIM: A periapical endodontic surgery is an alternative treatment when teeth are not responding to conventional treatment and endodontic re-treatment.CASE REPORT: The following case report presents a clinical case of maxillary right and left central incisors with unsatisfying endodontic surgery and severe sensitivity in the buccal mucous membrane. Radiographic examination revealed several fragments of amalgam as root-end filling material, surrounded by a periapical radiolucent area. The chosen treatment plan was to perform endodontic retreatment. Symptoms persisted in spite of the gutta-percha removal and calcium hydroxide intracanal medication. Hence, periradicular re-surgery was performed. However, deep tissue penetrated amalgam particles were difficult to explore and could not be removed completely. The root-end filling was done with mineral trioxide aggregate (MTA), and the lesion was subjected to histologic analyses. The treatment was successful due to the absence of painful symptoms and due to periapical bone repair after ۷۵ months follow-up.CONCLUSION: MTA can be used successfully in the situations with failed previous periradicular surgery with amalgam.

Amalgam, Apicectomy, Mineral trioxide aggregate, Periapical Re-surgery, Root End Filling ‎Material