Dental development in children with supernumerary teeth in the anterior region of maxilla

  • Sreekanth K. Mallineni
  • Jayakumar JayaramanEmail author
  • Hai Ming Wong
  • Nigel M. King
Original Article



Development of human dentition has been used as a predictor for evaluating the growth and maturity of an individual. It is fairly identical in a specific population, but the effect of development on subjects with dental anomalies had not been fully explored, particularly on subjects with supernumerary teeth (ST). This study hence aims to evaluate the dental development of children with and without ST.

Materials and methods

Sample size calculation was conducted and 320 radiographs of subjects with and without supernumerary teeth (ST) were obtained from the archives of a teaching hospital. The subjects in both groups were age and sex matched. All the subjects belong to southern Chinese ethnicity aged 2 to 14 years. The left-side dentition was scored, and dental age (DA) was estimated by obtaining scores from the southern Chinese dental reference dataset. Paired t test was used to calculate the difference between chronological age and dental age (CA-DA) for boys and girls with and without ST and further based on the number and position of ST.


The difference between chronological age and dental age (CA-DA) was 0.10 years for boys and 0.19 years for girls with ST whilst 0.01 and 0.05 years for boys and girls without ST (p > 0.05). The boys with bilateral ST showed significant delay in dental development of 0.23 years (p < 0.05). Position of the ST did not have any influence on dental age.


No significant difference was observed in the dental development of children with and without supernumerary teeth.

Clinical relevance

Understanding dental development of children with supernumerary teeth may be useful in appropriate treatment planning of such conditions.


Dental age Dental maturation Supernumerary teeth Southern Chinese Dental radiograph 



The authors would like to thank Professor Graham Roberts at King’s College London Dental Institute who helped in the preparation of southern Chinese dental reference dataset employed in this study.


The work described in this paper was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 17126115).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

Ethics approval for this study was obtained from the Institutional Review Board of the University of Hong Kong (Reference Number UW 12-280). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

For this type of study, formal consent is not required.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Paedodontics and Preventive DentistryNarayana Dental College and HospitalNelloreIndia
  2. 2.Children’s Dentistry & Orthodontics, School of DentistryInternational Medical UniversityKuala LumpurMalaysia
  3. 3.Paediatric Dentistry & Orthodontics, Faculty of DentistryThe University of Hong KongHong KongHong Kong
  4. 4.Paediatric Dentistry, School of DentistryUniversity of Western AustraliaPerthAustralia

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