Hsien H.-C.Cheng Y.-A.YUAN-LING LEELan W.-H.CHUN-PIN LIN2021-07-052021-07-0520030099-2399https://www.scopus.com/inward/record.uri?eid=2-s2.0-0141906299&doi=10.1097%2f00004770-200308000-00011&partnerID=40&md5=1f95c402188d6f46796552e6585feb66https://scholars.lib.ntu.edu.tw/handle/123456789/569413A case of internal resorption with buccal perforation was found in a maxillary central incisor. Because of the extensive lesion and continuous exudation, surgical intervention was used. The apical third was obturated with gutta-percha, and the perforated lesion was repaired with mineral tri oxide aggregate. The residual canal space was filled by thermoplasticized gutta-percha technique, and the coronal cavity was restored with composite resin. The symptoms and signs ceased, and the results were satisfactory at 1-year follow-up.[SDGs]SDG3mineral; aluminum derivative; calcium derivative; mineral trioxide aggregate; oxide; root canal filling material; silicate; adult; article; case report; female; follow up; human; incisor; maxilla; medical examination; osteolysis; surgical technique; tooth disease; tooth radiography; drug combination; endodontics; methodology; tooth disease; Adult; Aluminum Compounds; Calcium Compounds; Drug Combinations; Female; Humans; Incisor; Maxilla; Oxides; Retrograde Obturation; Root Canal Filling Materials; Root Resorption; Silicatesjournal article10.1097/00004770-200308000-00011129297032-s2.0-0141906299