Trauma-induced dentigerous cyst involving the anterior maxilla.

The dentigerous cyst is the most common developmental odontogenic cyst of the jaws. The purpose of this article was to report the case of a dentigerous cyst associated with a permanent maxillary central incisor in a 5-year-old boy who had suffered severe facial trauma at age 4. Panoramic and periapical radiographs revealed a well-defined radiolucent area with radiopaque borders surrounding the permanent maxillary left central incisor, causing displacement of the tooth buds of the permanent maxillary left lateral incisor and canine and root resorption of the deciduous maxillary left lateral incisor. Treatment was performed by aspiration and enucleation; the permanent maxillary left central incisor was part of the cyst and, thus, was also removed.