Abstract
Dentigerous cysts are relatively common odontogenic cysts that typically occur in the mandibular wisdom teeth and maxillary canines but rarely attach to the orbital floor. Herein, we report a case of a dentigerous cyst that filled the maxillary sinus and was attached to the orbital floor in a 25-year-old woman. The patient’s initial visit was scheduled for extraction of the left mandibular wisdom tooth. Panoramic radiographic examination revealed impaction of both the left mandibular and maxillary wisdom teeth, with the latter being located in the maxillary sinus. Computed tomography showed a 34×32×21mm opaque lesion extending from the maxillary sinus floor to the orbital floor, including the impacted wisdom tooth. The patient underwent impacted wisdom tooth extraction and jawbone cystectomy under general anesthesia, with a clinical diagnosis of impacted wisdom teeth in the left upper and lower jaw and a left mandibular tooth bearing a cyst. Histopathological analysis confirmed the diagnosis of a dentigerous cyst. The patient experienced an uneventful postoperative course in the oral and ophthalmologic regions.
