Neoplasms that are derived from the odontogenic apparatus are rare and constitute a heterogeneous group of lesions. They have a specific histological structure that reflects various stages of odontogenesis and possess variable biological behavior. The aim of this paper is to present the results of a retrospective study of odontogenic tumors (OTs) recorded in two services of diagnostic pathology in Brazil (Bauru School of Dentistry, University of São Paulo; and Araçatuba School of Dentistry, São Paulo State University) and compare with rates of other countries. The final diagnosis in each case was based on the WHO histological criteria (2005). There were 803 OTs that accounted for 1.84% of a total of 43,657 cases accessed. Of these, 800 (99.63%) were benign and 3 (0.37%) were malignant. The most frequent tumors were: keratocystic odontogenic tumor (299 cases; 37.24%), odontoma (190 cases; 23.66%), ameloblastoma (132 cases; 16.43%), and myxoma (43 cases; 5.36%). The frequencies of the tumors were similar within the other diagnostic services. This study provides epidemiological information on OTs from Brazil corroborating with the understanding of these lesions.
Conflict of interest: None declared.