{Reference Type}: Case Reports {Title}: Exceptional bone remodeling over composite restoration in the management of external root resorption: A case report. {Author}: Zaccheo F;Petroni G;Fiorillo L;Heboyan A;Carnevale G;Calapaj M;Cervino G;Tallarico M; {Journal}: SAGE Open Med Case Rep {Volume}: 12 {Issue}: 0 {Year}: 2024 暂无{DOI}: 10.1177/2050313X241269588 {Abstract}: A 65-year-old Caucasian male was referred to an endodontic specialist practice in a private clinic in December 2019 for the management of an asymptomatic, radiolucent lesion located at the cervical level of the distal root of his right lower first molar, noticed during a routine periapical radiograph. After an accurate evaluation with cone-beam computed tomography (CBCT), the subgingival lesion was diagnosed as a supracrestal external cervical resorption (ECR), with a circumferential spread ⩽90°, confined to dentine without pulp involvement. The lesion was treated with the following sequence: (1) a full flap accessed the ECR, (2) the granulomatous tissue was removed from the root area, (3) the cavity was refreshed and filled with a well-refined and polished resin composite, (4) the flap was sutured at the cemento-enamel junction. A mandibular CBCT scan was performed before treatment, right after treatment, and 3 years postoperatively. Compared to the 3-year posttreatment CBCT scan, the immediate posttreatment one, revealed the absence of bone loss and an unexpected coronal bone remodeling with new bone formation over the treated lesion.