Adenomatoid odontogenic tumor (AOT) is an injury classified by the World Health Organization, in odontogenic tumors involving the ectomesenchyme, as it may contain, in addition to the epithelium, calcified tissue inside, showing a histologic morphology peculiar. It is a benign tumor of low prevalence committing only 0.1% of tumors and cysts of the jaws, with a very low rate of recurrence, has a predilection for young patients, usually women, higher presentation in the maxilla, asymptomatic, slow growing and less invasive, which can mimic other more aggressive odontogenic lesions such as dentigerous cyst and ameloblastoma, including benign and complex odontoma and pleomorphic adenomas. Often seen as a radiolucent lesion of cystic unilocular organs associated with dental included, usually canines. Its classic location directs us to the diagnosis and histological pattern ductiforme (basaloid appearance with glandular structures, and presence of calcifications esferulares abundant amyloid material) that facilitate microscopic recognition is very typical of this tumor lesion. Here we present a case of a 12-year-old asymptomatic and asymmetric facial female with a definitive diagnosis by biopsy (ATO) in the anterior maxillary dental associated with a body 23 including, underwent surgery placing graft material as a bone substitute, taking into account the patient's general condition, differential diagnosis, radiographic, tomographic and clinics.