Dentigerous cyst associated with an ectopically erupted mandibular third molar: A case report

Dentigerous cyst contributes around 20–24% of all the odontogenic cysts of jaw and is the second most common odontogenic cyst affecting the jaw bone. The prevalence of dentigerous cysts involving the permanent ramus is just 1.5%. Radiologic evaluation of the cystic lesion is compulsory to decide the duration of decompression for large lesion, the time of enucleation, and also to evaluate the time required for the new bone formation. In this case report, we present a case of a dentigerous cyst associated with ectopically erupted mandibular third molar in close proximity to the posterior border of the mandibular ramus which was treated by enucleation procedure under general anesthesia.