Dentigerous cyst associated with an impacted maxillary mesiodens

A dentigerous cyst is a developmental odontogenic cyst, which apparently develops by accumulation of fluid between the reduced enamel epithelium and the tooth crown of an unerupted tooth. When observed with erupted and complete permanent dentition the diagnosis is 95% dentigerous cysts, and only 5% are associated with supernumerary teeth. Mesiodens is a supernumerary tooth situated between the maxillary central incisors. We report the case of a dentigerous cyst in association with an impacted mesioden in an 18-year-old male patient. Radiographically, the cyst appeared as an ovoid, well-demarcated unilocular radiolucency with a sclerotic border. The present case report describes the successful management of a dentigerous cyst by surgical enucleation. Careful evaluation of the history and the clinical and radiographic findings, help clinicians to diagnose the condition accurately, identify the etiological factors, and administer the appropriate treatment.