title: Worldwide incidence of odontogenic tumors.
abstract: OBJECTIVE
  The objective of the study was to determine the relative frequency of odontogenic tumors (OTs) in the world population, directing an epidemiologic profile to these lesions.
  
  
  METHODS
  Was conducted a search in epidemiologic studies involving OTs that are listed by PubMed and Ovid, EMBASE, and Cochrane Library, embracing the period from January 1960 to January 2010, to verify their incidence worldwide. We identified 195 articles, of which 19 articles were selected, considering the location, age, sex, histologic type, and World Health Organization classification.
  
  
  RESULTS
  A total of 8544 OTs were found. The results showed a low frequency of malignant OTs in selected works. The most frequent tumor was ameloblastoma (39.6%), followed by odontoma (20.1%) and the newly included keratocystic OT (13.8%).
  
  
  CONCLUSIONS
  These OTs are uncommon lesions in world population, and malignant OTs are very rare. The relative frequency of different kinds of OTs, the age, and the sex distribution show a marked geographic variation in incidence of those lesions. This was particularly notable in the ameloblastomas and odontoma, with the incidences being relatively well and weighted showing similar values to an average when compared with previous studies.
authors: Department of Oral and Maxillofacial Surgery, Federal University of Ceará, Porto Alegre, Rio Grande do Sul, Brazil.
authors: Rafael Linard
authors: RL
authors: Avelar
authors: Bruno Tochetto
authors: BT
authors: Primo
authors: Carlos Bruno
authors: CB
authors: Pinheiro-Nogueira
authors: Eduardo Costa
authors: EC
authors: Studart-Soares
authors: Rogério Belle
authors: RB
authors: de Oliveira
authors: Jose
authors: J
authors: Romulo de Medeiros
authors: Pedro Antonio Gonzalez
authors: PA
authors: Hernandez
mesh_terms: D005260:Female; D014943:Global Health; D006801:Humans; D015994:Incidence; D008297:Male; D009808:Odontogenic Tumors / Q000145:classification / Q000453:epidemiology*; D015995:Prevalence; D014944:World Health Organization