Dentigerous cyst
Dentigerous cysts are usually solitary. Bilateral or multiple dentigerous cysts are rare, mainly found in association with syndromes. There have been 12 reported cases of bilateral dentigerous cysts and only six affecting the third molars in our department .
The
treatment of choice is usually enucleation of the cyst with removal of
the tooth if necessary. Sometimes, marsupialisation can be carried out
if the cyst is too large. There have been a few reports of spontaneous
regression of a dentigerous cyst.3-5
This panoramic radiograph revealed radiolucencies, compatible with dentigerous cysts, associated with the crowns of bilateral impacted lower third molars. Both cysts had regressed in a follow up radiograph three years later with no intervention. This is the first reported case of spontaneous regression of bilateral dentigerous cysts.