title: Prevalence of dental anomalies on panoramic radiographs in a population of the state of Pará, Brazil.
abstract: BACKGROUND
  Dental anomalies (DAs) are the result of disorders that are able to modify the shape, number, size, and structure of teeth. This study aimed to evaluate the prevalence of DAs using panoramic radiographs in a population of the City of Belém, northern Brazil.
  
  
  METHODS
  In this study, 487 panoramic radiographs were evaluated searching for DAs. Dental records were reviewed for diagnostic confirmation. DAs related to the shape, number, size, and structure of teeth were investigated.
  
  
  RESULTS
  Our results showed a DA prevalence of 56.9%. The most prevalent DA was taurodontism, which was present in 27.19% of cases. Root dilaceration was the second most prevalent DA in adults, whereas hypodontia was the second most prevalent DA in children. A total of 13 DAs were found.
  
  
  CONCLUSIONS
  Dental anomalies were present in over half of the sample, and most of them were related to the shape of the teeth. Although there was a high prevalence of shape-related DAs, these alterations are generally of lower severity, and most do not require specific treatment. However, in 19.25% of cases, DAs were found involving the number, size and structure of the teeth. These DAs should be diagnosed and treated early, avoiding thus more serious complications.
authors.forename: Antonio Jg
authors.initials: AJ
authors.lastname: Goncalves-Filho
authors.forename: Larissa B
authors.initials: LB
authors.lastname: Moda
authors.forename: Roberta P
authors.initials: RP
authors.lastname: Oliveira
authors.affiliation: Departments of Oral and Maxillofacial Surgery, School of Dentistry, University Center of Pará, Brazil.
authors.forename: Andre Luis Ribeiro
authors.initials: AL
authors.lastname: Ribeiro
authors.forename: João Jv
authors.initials: JJ
authors.lastname: Pinheiro
authors.forename: S Rgio M
authors.initials: SR
authors.lastname: Alver-Junior
mesh_terms: D000328:Adult; D000567:Amelogenesis Imperfecta / Q000453:epidemiology; D000848:Anodontia / Q000453:epidemiology; D001938:Brazil / Q000453:epidemiology; D002648:Child; D003719:Dens in Dente / Q000453:epidemiology; D003744:Dental Enamel Hypoplasia / Q000453:epidemiology; D003786:Dental Pulp Cavity / Q000002:abnormalities; D003792:Dental Records / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D011862:Radiography, Panoramic / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D014071:Tooth Abnormalities / Q000000981:diagnostic imaging / Q000453:epidemiology*; D014092:Tooth Root / Q000002:abnormalities; D014096:Tooth, Supernumerary / Q000453:epidemiology