Nonsyndromic Bilateral Posterior Maxillary Supernumerary Teeth: A Report of Two Cases and Review

Abstract

Supernumerary tooth/hyperdontia is defined as those teeth which are present in excess of the usual distribution of twenty deciduous and thirty-two permanent teeth. It can be seen in both syndromic and nonsyndromic patients. In Nepalese population, prevalence of supernumerary tooth is documented to be 1.6%. To the best of our knowledge, no studies from Nepal have reported the incidence of bilateral maxillary paramolars or the combination of unilateral maxillary paramolar and distomolar till date. Hence, we are reporting these two cases with a brief review of literature to put emphasis on incidence, prevalence, proposed hypothesis for etiology, and management of supernumerary teeth.

A Review of Supernumerary Teeth in the Premolar Region

“…Therefore, in addition to other characteristics of supernumeraries in different regions, this might be helpful as a diagnostic sign for differentiation between supernumerary teeth in the molar region and transposed supernumerary premolars. Different cases of supernumerary premolar teeth in the molar region have been considered as transposed supernumerary premolars [15, 34, 45].…”

Familial occurrence of non syndromic supernumerary premolar tooth: A case report

“…These complications occur rarely, but earlier diagnosis can help preventing them. 14 Radiographic imaging is the most reliable and effective procedure for the diagnosis of supernumerary teeth. The most commonly used techniques being periapical, occlusal radiographs with OPG.…”

Paramolares bilaterales maxilares no erupcionados y su abordaje quirúrgico: reporte de un caso inusual

“…19 Respecto al sexo, la mayoría de los reportes casos, así como los estudios de prevalencia de supernumerarios indican que los dientes paramolares se presentan más en hombres que en mujeres, dicha situación no se dio en este caso. 14,19,21,23 Investigaciones realizadas por Santos et al 12 y Martinez-Gonzalez et al 19 mencionan que los dientes supernumerarios retenidos pueden asociarse a quistes o agrandamiento del folículo de hasta 3 mm, en el caso presentado, en ninguno de los paramolares se observó dicha condición.…”

“…[11][12][13] Los dientes supernumerarios se pueden clasificar según su morfología (cónico, tuberculado, suplementario y odontómico), ubicación (mesiodens, paramolar, distomolar y parapremolar), posición (vestibular, palatino y transversal) y orientación (vertical, invertido, transversal u horizontal). 14 Un paramolar es un molar supernumerario generalmente…”