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Revista de Odontologia da UNESP

versão On-line ISSN 1807-2577

Resumo

MOURA, Walter Leal de et al. Prevalence of supernumerary teeth in patients attended at the University Hospital of UFPI: a retrospective study of five years. Rev. odontol. UNESP [online]. 2013, vol.42, n.3, pp.167-171. ISSN 1807-2577.  http://dx.doi.org/10.1590/S1807-25772013000300004.

INTRODUCTION: Variations in tooth development may result in changes in the number of teeth, for example, hyperdontia, which is characterized by the formation of teeth in excess, that is called supernumerary. Its occurrence is frequently associated to pathologies and interferences in the eruption of permanent teeth which can implicate the esthetics and occlusion. So, it is important to describe its epidemiological profile. OBJECTIVE: This study aimed to analyze epidemiological data in medical records, assessing the prevalence of supernumerary teeth. MATERIAL AND METHOD:The sample consisted in 1511 records of patients treated at the Hospital of Federal University of Piauí, between January 2006 and January 2011, noting the prevalence of supernumerary teeth in number of patients, gender, age, ethnicity, location, position in the dental arch, type and treatment. RESULT: The prevalence of supernumerary teeth was 1.99%, occurring in patients of mixed ethnicity (78.57%), with permanent dentition (86,96%), male (53.33%), located in the posterior maxilla (35%) and mandible (35%), and the paramolar type (38,10%). The majority of the surgeries were performed by indication orthodontic (62.96% of cases). CONCLUSION: According to the results, the presence of supernumerary teeth was an uncommon finding with predominance for the maxilla and the paramolar type the most common. All patients were treated by surgical removal and the majority by orthodontic indication.

Palavras-chave : Supernumerary tooth; prevalence; epidemiology.

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