Non-syndromic familial supernumerary teeth: case report and review of their phenotypic characteristic

Authors

  • W.N. Wan Hassan Department of Children’s Dentistry and Orthodontics Faculty of Dentistry, University of Malaya 50603, Kuala Lumpur
  • N. Ab. Rahman Department of Orthodontics, School of Dental Sciences, Universiti Sains Malaysia Kubang Kerian, Kelantan

DOI:

https://doi.org/10.22452/adum.vol19no1.5

Keywords:

Tooth, Supernumerary, Siblings, Male, Phenotype

Abstract

Supernumerary teeth have a genetic predisposition with a predilection for males. This article reports an uncommon radiological finding in a non-syndromic sibling pair who presented with supernumerary teeth of different morphologies on opposite and different regions of the dental arches. A 14-year-old Chinese
male presented with a conical supernumerary palatally placed between the upper right central and lateral incisors. His older brother had unerupted bilateral
supplemental supernumerary teeth between the roots of the lower second premolars and first permanent molars. Trends of the phenotypic presentation of familial non-syndromic supernumerary cases are discussed. Familial supernumerary teeth have been suggested to be due to autosomal dominance or recessive traits. Variation in the numeral, spatial and morphological phenotypic expressions suggests a multifactorial model of multiple genetic, epigenetic and environmental influences. Clinicians need to be mindful of the possible phenotypic variations that may present when treating cases with family history of dental anomalies.

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Published

2012-06-29

Issue

Vol. 19 No. 1 (2012)

Section

Case Report

License

  1. The Faculty of Dentistry, Universiti Malaya holds the copyright of the published manuscript including all its components such as supplementary information, graphical contents and raw data without any restrictions.
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