Prevalência de dentes supranumerários diagnosticados em radiografias panorâmicas na cidade de João Pessoa-PB

Abstract

Hyperdontia is the development of a larger number of teeth that are called supernumerary or supernumerary teeth and can occur in both dental arches. Its etiology is not completely understood, although most authors believe in hyperactivity of the dental blade. Objective: The objective of this study was to evaluate the prevalence of supernumerary teeth in terms of gender, age, stage of Nolla formation and distribution in the dental arches. Methodology: A total of 1,898 panoramic radiographs were analyzed of patients of up to 18 years of age, of both sexes, from the city of João Pessoa-PB. Results: Of the total analyzed 52 patients presented supernumerary teeth, a prevalence of 2.73%, of these in 35 patients were observed supernumerary unitary teeth. A total of 88 supernumerary teeth were verified, a greater proportion for male gender (1.2: 1), there was no statistically significant difference in supernumerary prevalence between male and female genders (p> 0.05). The prevalence of supernumerary teeth was statistically similar (p> 0.05) for upper and lower dental arches, although 58% of them were located in the upper arch. Conclusion: The prevalence of supernumerary teeth is relatively low, with a predominance of men, the age of 15 years presented a higher number of supernumeraries, most of the teeth evaluated had a stage 10 of Nolla formation and were predominant in the anterior region of the maxilla.