The purpose of this paper is to present two cases of dentigerous cyst
associated to permanent teeth in children treated by conservative
techniques. Dentigerous cyst is the most common developmental cysts of
the jaws. Conservative treatment is very effective to this entity and
aims at eliminating the cystic tissue and preserving the permanent
tooth involved in the pathology. Two techniques are described as
conservative treatment for these cysts, marsupialization and the
decompression. Two children presented with dentigerous cysts. A female
child was affected by a large lesion at the right side of the mandible
associated to tooth 45. The other lesion arose at the left maxilla
associated to tooth 21 of a male child. Each dentigerous cyst promoted
severe tooth displacement. The first patient was treated with
decompression and the second with marsupialization
