Resumo

FREITAS, Deborah Queiroz de; TSUMURAI, Richard Yuiti  e  MACHADO FILHO, Denilson Newton São Pedro. Prevalence of dental anomalies of number, size, shape and structure. RGO, Rev. gaúch. odontol. (Online) [online]. 2012, vol.60, n.4, pp. 437-441. ISSN 1981-8637.

Objective To evaluate the prevalence of dental anomalies (of number, form, size and structure) using panoramic images, in São José do Rio Preto, São Paulo, Brazil. Methods 512 panoramic radiographies were evaluated from orthodontic patients between the ages of 6 and 20; only suitable images were examined. We considered all permanent teeth; the analysis of third molars was included from 12 years of age onwards. A chi-square test was used to determine the difference in prevalence of dental anomalies between the genders. Results Dental anomalies were observed in 69 (13.48%) radiographies; 47 (9.18%) were agenesis, 9 (1.76%) were supernumerary teeth, 7 (1.37%) were microdontic teeth, 4 (0.78%) were taurodontism, 1 (0.2%) was gemination and 1 (0.2%) was concrescence. There was a higher prevalence of anomalies in males (p=0.013). Other dental anomalies were not observed. Conclusion The dental anomalies show a significant rate of incidence; therefore, the professional should be present in the planning of dental treatment, especially orthodontic planning; in addition, radiographic evaluation is essential in such cases.

Palavras-chave : Anodontia.; Epidemiology.; Panoramic radiography.; Tooth abnormalities.; Anodontia..