Prevalence of Dental Anomalies of Number in Orthodontic Patients: A Radiographic Study

Cintia Carneiro PINHEIRO, Mônica Almeida TOSTES, Aristides da Rosa PINHEIRO

Abstract


Objective: To assess the prevalence of dental anomalies of number in 6-16-year-old patients treated at the Orthodontic Service of the Police Military Hospital in the city of Niterói, RJ, Brazil, between 2002 and 2006. Method: Panoramic radiographs were analyzed to determine the affected teeth, their location and distribution between genders. Results: From a total of 402 panoramic radiographs, 5.97% presented dental anomalies of number, 4.73% being hypodontia, with similar distribution between genders, and 1.24% being hyperdontia, with a male over female prevalence. From the 19 radiographs with hypodontia, 11 presented more than 1 missing tooth and 8 missed only 1 tooth. From the 5 radiographs with hyperdontia, 3 presented only 1 supernumerary tooth (Bolk’s 4th molar) and 2 presented 2 supernumerary teeth (mean=1.4 teeth per patient). Conclusion: Panoramic radiographs appear as the method of choice for diagnosis of dental anomalies of number, along with the evaluation of the patient’s clinical files obtained from a good clinical interview.

Keywords


Prevalência; Anodontia; Dente supranumerário; Prevalence; Anodontia; Tooth, supernumerary.



DOI: http://dx.doi.org/10.4034/pboci.v8i1.237

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