Abstract
BackgroundOdontogenic tumors (OTs) are considered important among oral lesions because of their clinicopathological heterogeneity, and variable biological behavior. This paper aims to determine the frequency and distribution of OTs, over a period of 10 years, at a public university in Northeastern Brazil and compare this data with previous reports. Material and MethodsWe reviewed all cases of OTs from oral pathology laboratory of University of Pernambuco (UPE), from 2004 to 2014. Diagnoses were re-evaluated and the tumors were classified according to the latest (2005) World Health Organization Classification of Tumors. In addition, we searched in the English-language literature retrospective studies on OTs that used the same classification.ResultsData was obtained allowing the analysis of the tissue hemodynamics. We were able to map the vascularization of the face and it was possible to access three arteries of small diameter (0,60mm angular artery; 0,55mm greater palatine artery; 0,45mm infraorbital artery).ConclusionsOTs are uncommon neoplasms with geographic variation. Our clinicopathological features are according to literature. In the present study, KCOT was the most frequent one, showing that the new classification of OTs altered the distribution of these lesions and possibly made KCOT the most common OT observed in diagnostic services worldwide. Key words:Odontogenic tumors, jaw neoplasms, epidemiology, oral pathology.
Highlights
We searched on PubMed Database Englishlanguage series of cases using the 2005 World Health Organization (WHO) classification to compare their data with ours.After the sample was obtained, a database was generated using commercially available software (SPSS 13.0).Continuous variables were categorized to facilitate data analysis and presentation
Among the 6,028 oral biopsies registered during the 10year period of this retrospective study, 302 cases were diagnosed as Odontogenic tumors (OTs)
The files and histological material was obtained from the oral pathology laboratory, School of Dentistry, University of Pernambuco, Northeastern Brazil
Summary
We searched on PubMed Database Englishlanguage series of cases using the 2005 WHO classification to compare their data with ours.After the sample was obtained, a database was generated using commercially available software (SPSS 13.0).Continuous variables were categorized to facilitate data analysis and presentation. We searched on PubMed Database Englishlanguage series of cases using the 2005 WHO classification to compare their data with ours. After the sample was obtained, a database was generated using commercially available software (SPSS 13.0). Continuous variables were categorized to facilitate data analysis and presentation. Gender and tumor site analyses were done using the binomial test. X 2 test was applied to check the statistical significance of the findings. The level of significance adopted was p< 0.05. Odontogenic tumors (OTs) are considered important among oral lesions because of their clinicopathological heterogeneity, and variable biological behavior. This paper aims to determine the frequency and distribution of OTs, over a period of 10 years, at a public university in Northeastern Brazil and compare this data with previous reports
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