Clinical characteristics of non-syndromic supernumerary teeth in a cohort of Turkish patients

Abstract

Objectives To investigate the frequency, prevalence, distribution, sex differences and characteristics of supernumerary teeth in a referred non-syndromic Turkish population. Methods A total of 5200 panoramic radiographs of patients who presented at the Department of Oral and Maxillofacial Radiology from July 2008 to August 2010 were evaluated. Demographic variables (age and sex), location, morphology, classification, number of supernumerary teeth, distribution, side and eruption status of supernumerary teeth as well as the management approach were evaluated for each patient with supernumerary teeth. Complications and pathological conditions were also recorded. Results Among the 5200 patients, 116 supernumerary teeth were found in 83 patients. These 83 patients comprised 48 males and 35 females, giving a ratio of 1.4:1. The average number of impacted teeth per person was 1.4. Parapremolar teeth (43.1%) were the most frequently observed supernumerary teeth, followed by distomolar teeth (31%), mesiodens (19.8%), paramolar teeth (2.6%), lateral incisors (2.6%) and canines (0.9%). Conclusion Supernumerary teeth had a prevalence of 1.6%, with parapremolar teeth being the most common supernumerary teeth in a Turkish population.

An Overview of Retrospective Studies on Distomolar Teeth in Turkish Population and 4 Case Reports

“…Mostly conical supernumerary teeth were observed in the studies [33]. More tubercular and fewer supplemental forms were observed to follow conical forms.…”

“…The studies on supernumerary teeth in Turkish population report a prevalence frequency of 0.75-2.3% [20,[30][31][32][33][34][35][36][37]. In a great majority of the studies, more supernumerary teeth have been observed in men than in women (1.28/-1.91/1) [20,30,31,32,33,34].…”

“…Most of the papers report more supernumerary teeth in the maxilla at a varying range from 58% to 92% [20,30,31,32,33,34,36,37] . Contrastingly Dereci et al [35] reports more supernumerary teeth in mandible (62%).…”

“…The analysis of the frequencies of supernumerary teeth in the studies conducted in Turkey indicated that the most frequently observed supernumerary tooth was parapremolar teeth in three studies [33,35,36], followed by distomolar in two [31,37], and mesiodens in the other studies [20,30,32,34]. There are studies putting mesiodenses [31,36], distomolar teeth [30,33], and supernumerary lateral teeth [20,32,37] in the second place.…”

“…There are studies putting mesiodenses [31,36], distomolar teeth [30,33], and supernumerary lateral teeth [20,32,37] in the second place. In the studies discussing supernumerary teeth in Turkey, the frequency rate of distomolar teeth range between 1.4% and 55.6%.…”