Supernumerary teeth: review of the literature and a survey of 152 cases

Abstract

Males were affected more than females with a sex ratio of 2.2 : 1. Seventy-seven percent of the patients had one supernumerary tooth, 18.4% had double teeth, and 4.6% had three or more supernumeraries. Ninety percent of the supernumerary teeth occurred in the premaxilla, of which 92.8% were in the central incisor region and of these latter 25% were located in the midline. The other 10.4% of the supernumeraries were located in the premolar, canine, molar, and lower central incisor regions. Two cases were of non-syndrome supernumerary teeth. Seventy-five percent of the supernumeraries were conical, 83.1% were in the normal vertical position and 26.5% were erupted. Conical-shaped supernumerary teeth had a significantly higher rate of eruption compared to the tuberculate type.

Revisiting the supernumerary: the epidemiological and molecular basis of extra teeth

“…4 They are often responsible for the impaction of permanent maxillary incisors. 2,3 Supplemental teeth are duplications within the normal dentition, arising at the end of a tooth series.…”

“…They may erupt normally or fail to erupt, have a normal or ectopic position, or develop an abnormal path of eruption. 4 Their shape and size may be consistent with the dentition in the region of jaw in which they are localised, or may bear little or no resemblance. The Supernumerary teeth are a common clinical and radiographic fi nding and may produce occlusal and dental problems.…”

Non-Syndromic Multiple Supernumerary Teeth in a Child: A Rare Case Report

“…Generally, supernumerary teeth present morphology and volumetric anomalies which can be erupted or nonerupted [3,4].…”

Lower third molar fused with a supernumerary tooth: diagnosis and treatment planning using Cone-Beam Computed Tomography

“…Supernumerary teeth are additional teeth in the normal series which may occur in any region of the dental arch althoug they are more frequent in the maxilla than in the mandible [1][2][3][4][5][6] . They are considered uncommon and occur with a frequency of 0.3 to 3.8% in the population 7 and they are classified according to their position and form.…”

“…They are considered uncommon and occur with a frequency of 0.3 to 3.8% in the population 7 and they are classified according to their position and form. According to their location they are named mesiodens, paramolars, parapremolars and distomolars 6,8 . Concerning to their form they are named eumorphic, rudimentar or dysmorphic, tuberculous and conical 6,9 .…”