A Case of Infected Dentigerous Cyst

Introduction: The dentigerous cyst is the most commonly occurring developmental odontogenic cyst, often detected incidentally on radiographs. Impacted mandibular third molars and permanent maxillary canines are the teeth most commonly involved. In this case, however, the cyst was associated with an impacted supernumerary tooth.  Case Presentation: A 25-year-old male patient presented with a swelling in the upper front tooth region. On clinical examination, a diffuse swelling was observed in the middle third of the face, with obliteration of nasolabial fold and soft tissue enlargement extending from the region of the teeth 12 to 13. Based on the initial findings, a provisional diagnosis of radicular cyst associated with tooth 11 was considered, and further investigation were advised. However, the final diagnosis confirmed an infected dentigerous cyst related to an impacted supernumerary tooth.  Conclusion: Typically, dentigerous cysts are associated with mandibular third molars and maxillary canines. Only about 5-6% 6 of cases occur in relation to supernumerary teeth. This report highlights a rare case of an infected dentigerous cyst associated with an impacted anterior maxillary supernumerary tooth, which was successfully managed by surgical enucleation.