Odontogenic tumors: clinical and pathology study of 238 cases.
Odontogenic tumors are neoplasms that develops exclusively in the gnathic bones; they originate from odontogenic tissues, by epithelial or mesenchymal proliferation, or both.


OBJECTIVE
To evaluate the incidence of odontogenic tumors in a specific institution, and to compare these findings with other studies in the literature. STUDY FORMAT: A cross-sectional cohort retrospective study.


METHODS
The sample was obtained from the files of patients with odontogenic tumors diagnosed between January 1992 and March 2007 (15 years). Cases in which the diagnosis could be adapted to the new World Health Organization (WHO) of 2005 were included. Data such as gender, age, anatomical site, histological type and symptomatology were analyzed.


RESULTS
Odontogenic tumors were 4.76% of all biopsied lesions within the studied period. The mean age was 30.7 years; 57% of the patients were male. The keratocystic odontogenic tumor was the most prevalent histological type (30%), followed by the ameloblastoma (23,7%). The rate of asymptomatic cases was 75.7%.


CONCLUSIONS
Odontogenic tumors occurred more frequently in females, in the second and third decades of life, and more commonly in the mandible; most cases were asymptomatic.
Avelar
Rafael Linard
RL
Dental surgeon, resident in buccomaxillofacial surgery and traumatology, Hospital Universitário Oswaldo Cruz.
Antunes
Antonio Azoubel
AA
Dental surgeon, student in the specialization course on buccomaxillofacial surgery and traumatology, Universidade de Pernambuco - FOP/UPE.
de Santana Santos
Thiago
T
Dental surgeon, resident in buccomaxillofacial surgery and traumatology, Hospital Universitário Oswaldo Cruz - HUOC/UPE.
de Souza Andrade
Emanuel Sávio
ES
Doctor, adjunct professor of buccal pathology, Faculdade de Odontologia de Pernambuco - Universidade de Pernambuco - FOP/UPE.
Dourado
Edwaldo
E
Doctor, adjunct professor of buccomaxillofacial surgery and traumatology, Faculdade de Odontologia de Pernambuco - Universidade de Pernambuco - FOP/UPE. Discipline of buccal pathology, Faculdade de Odontologia da Universidade de Pernambuco - FOP/UPE.
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000564:Ameloblastoma / Q000145:classification / Q000453:epidemiology / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009808:Odontogenic Tumors / Q000145:classification / Q000453:epidemiology / Q000473:pathology*; D017678:Sex Distribution; D012737:Sex Factors; D014944:World Health Organization; D055815:Young Adult