Dentigerous cysts associated with supernumerary teeth.

Dentigerous cysts associated with supernumerary teeth are rare and estimated to constitute 5-6% of all dentigerous cysts. They resemble the usual dentigerous cysts in terms of sex predilection and age distribution. The vast majority, about 90%, are associated with a maxillary mesiodens. The literature is reviewed and 6 additional cases reported.