Abstract

SANTOS, Vanessa Bobig dos et al. Radiographic prevalence of unerupted and supernumerary teeth. RGO, Rev. gaúch. odontol. (Online) [online]. 2013, vol.61, n.1, pp. 107-111. ISSN 1981-8637.

Objective The objective of this study was to evaluate the prevalence of unerupted third molars and supernumerary teeth in patients from Maringá and region. Methods Panoramic radiographs of patients treated in the Dental Clinic at Ingá School of Dentistry during 2009, were evaluated. The third molars were classified according to Pell and Gregory1 and Winter2 and the supernumerary teeth according to Garvey et al.3. The results were submitted to chi-square statistical testing (p<0.05). Results Of a total of 411 panoramic x-rays evaluated, 113 subjects had unerupted third molars and 5 patients had supernumerary teeth. For the maxillary third molars the highest prevalence was in the A vertical position (p<0.05), and for mandibular third molars it was the mesio-angular position, class 1A (p<0.05). As for the supernumerary teeth, three were canines and two incisors, 2 being in the normal position, 2 inclined and 1 inverted. Conclusion Based on the outcomes of the present study, it can be concluded that there is a high prevalence of unerupted third molars and a low prevalence of supernumerary teeth in the studied population.

Keywords : Impacted tooth; Oral surgery; Supernumerary tooth.