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Application of cone-beam computed tomography in the management of dilacerated maxillary central incisor associated with radicular cyst and external root resorption - A case report

The maxillary anterior region is the most common site for the occurrence of radicular cyst in permanent dentition, because of a high frequency of trauma in this region. As radicular cyst is categorized as an inflammatory cyst, endodontic treatment of the tooth associated with the cyst becomes a part of the treatment regimen. Management of radicular cyst becomes challenging when it involves tooth with complex root morphology. This report presents the diagnosis and successful management of a dilacerated maxillary central incisor associated with a radicular cyst and external root resorption. Cone-beam computed tomography was used to view the extent of the cyst and understand the aberrant root canal morphology of the dilacerated tooth. Root canal therapy was followed by cyst enucleation, apicoectomy, and placement of platelet-rich fibrin. At 1-year recall, appreciable healing as evidenced by a decrease in the size of the radiolucency on the radiographic examination was seen.