Abstract

The exact aetiology of supernumerary teeth is still unknown even though many theories have been proposed to explain their presence. Abnormal reactions to a local traumatic episode, environmental factors or a developmental anomaly, and certain syndromes have been implicated as causative factors. Although a single supernumerary tooth or few teeth have been widely reported in the literature, multiple supernumerary teeth are not a common occurrence. Multiple supernumerary teeth affecting all four quadrants of the jaw is a rare dental anomaly which generally is an accidental finding on routine dental radiography. This article reports the case of non-syndromic multiple supernumerary teeth, affecting all four quadrants in a 23-year-old male, who presented to the Faculty of Dental Sciences, University of Peradeniya for routine dental treatment without any significant medical or dental abnormality. A brief review of the literature on multiple supernumerary teeth is also presented.

Highlights

  • Supernumerary teeth or hyperdontia are defined as the existence of an excessive number of teeth in relation to the normal dental formula and may or may not mimic the normal shape[1,2]

  • Supernumerary teeth can occur in patients without any associated syndromes or developmental anomalies

  • The occurrence of non-syndromic supernumerary teeth is more common in the maxilla than in the mandible[10], and in males than in females[1], in permanent dentition than in primary dentition[12], and unilaterally than bilaterally[12]

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Summary

Introduction

Supernumerary teeth or hyperdontia are defined as the existence of an excessive number of teeth in relation to the normal dental formula and may or may not mimic the normal shape[1,2] They may occur singly, multiply, unilaterally or bilaterally and in one or both jaws. Routine intraoral radiographs revealed the presence of multiple supernumerary teeth located in both upper and lower arches (Figure 2 a, b). Clinical examination and radiographic investigations, it was confirmed as Non-Syndromic Multiple Supernumerary Teeth. It was suggested to the patient that a follow-up DPT would have to be taken every two years to identify any cystic degeneration as-

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