Amorim, José M. S.2023-10-102023-10-102017-12Nascer e Crescer – Birth and Growth Medical Journal 2017; 26(4): 264-52183-9417http://hdl.handle.net/10400.16/2800An 12-year-old boy was referred to the Pediatric Stomatology Clinic for absence of eruption of permanent maxillary left incisive tooth. Physical examination revealed bulging of the vestibular cortical bone of the 2nd quadrant, agenesis of the tooth 21. Physical examination: Orthopantomography and CT scan of the upper jaw revealed a large radiolucent image that occupied the maxillary sinus and tooth 2.1 within the cyst and the presence of a mesiodens included. A presumptive diagnosis of an odontogenic dentigerous cyst was made. Treatment procedure comprised cystic enucleation with extraction of 2.1. The bone defect was filled with bone substitute (Geistlich Bio-Oss) and collagen membrane (Geistlich Bio-Gide).engCystic enucleationmesiodens includedodontogenic dentigerous cystradiolucent imagejournal articlehttps://doi.org/10.25753/BirthGrowthMJ.v26.i4.13683