Staged operations for an infected follicular dental cyst

Abstract

A 9-year-old boy was diagnosed as having a large follicular impacted dental cyst (tooth No.5). The cyst was infected and occupied the right maxillary sinus. It was fenestrated by a gingivobuccal approach and the tooth was removed. The cyst was irrigated by antibiotics through the gingivobuccal window. After it was fenestrated into the inferior meatus of the nasal cavity, the window in the gingivobuccal sulcus was closed. This nasoantral window played an important role in the reduction of the cyst and thereafter the reduced cyst was then removed. Computed tomography revealed the presence of a normal mucosa in the right maxillary cavity after operation. These results suggested that staged operations could thus be very effective in treating a large infected follicular dental cyst.