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Non-syndromic multiple supernumerary teeth among patients seen in a Nigerian Teaching Hospital
Abstract
Background: The global prevalence of multiple supernumerary teeth for permanent and primary dentition in various populations is between 0.05- 5.3% and 0.2-0.8%. A previous study in Nigeria reported a very low prevalence of multiple supernumeraries.
Aim: To ascertain any variation in the prevalence and presentation of multiple supernumeraries in Ibadan, Nigeria.
Methodology: Demographic data was obtained from the patients’ data extraction form. Panoramic radiographs of 100 patients seen in the orthodontic clinic of the University College Hospital were assessed for presence, site, side and clinical characteristics of multiple supernumeraries. Data was analysed using SPSS version 18 and Chi square test was used to determine any significant relationship between the assessed variables.
Results: More than half of the study population were females. The age range of the Study population was 5-40 years (mean age 13.58±6.5 years). Seventy-one percent had Angle’s class I molar relationship, 17% had Angle’s class II and 5% had Angle’s class III. The prevalence of supernumerary teeth was 9%. Most presented as a combination of supplemental (premolars) and conical/tuberculate teeth. Most (69.2%) of the supernumerary teeth were unerupted. There was no significant variation in the presence of multiple supernumeraries with respect to sex and molar relationship.
Conclusion: This study showed a higher prevalence of multiple supernumeraries than previously reported. There is need for a national survey to present a true population prevalence of multiple supernumeraries.
Keywords: Non-syndromic, Multiple, Supernumerary teeth, Nigeria
Aim: To ascertain any variation in the prevalence and presentation of multiple supernumeraries in Ibadan, Nigeria.
Methodology: Demographic data was obtained from the patients’ data extraction form. Panoramic radiographs of 100 patients seen in the orthodontic clinic of the University College Hospital were assessed for presence, site, side and clinical characteristics of multiple supernumeraries. Data was analysed using SPSS version 18 and Chi square test was used to determine any significant relationship between the assessed variables.
Results: More than half of the study population were females. The age range of the Study population was 5-40 years (mean age 13.58±6.5 years). Seventy-one percent had Angle’s class I molar relationship, 17% had Angle’s class II and 5% had Angle’s class III. The prevalence of supernumerary teeth was 9%. Most presented as a combination of supplemental (premolars) and conical/tuberculate teeth. Most (69.2%) of the supernumerary teeth were unerupted. There was no significant variation in the presence of multiple supernumeraries with respect to sex and molar relationship.
Conclusion: This study showed a higher prevalence of multiple supernumeraries than previously reported. There is need for a national survey to present a true population prevalence of multiple supernumeraries.
Keywords: Non-syndromic, Multiple, Supernumerary teeth, Nigeria
