Table of Contents
International Scholarly Research Notices
Volume 2014 (2014), Article ID 768357, 4 pages
Research Article

Epidemiology of Malocclusion and Assessment of Orthodontic Treatment Need for Nepalese Children

1Department of Orthodontics, Nobel Medical College & Teaching Hospital, Biratnagar 56700, Nepal
2Department of Dentistry, SHKM Government Medical College, Mewat, Haryana 122107, India

Received 25 August 2014; Accepted 8 December 2014; Published 22 December 2014

Academic Editor: Apolinaras Zaborskis

Copyright © 2014 Varun Pratap Singh and Amita Sharma. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To evaluate the prevalence of malocclusion and orthodontic treatment needs among 12- to 15-year-old schoolchildren in eastern Nepal and compare the findings with those of other populations. Methods. Two thousand seventy-four children (1149 males and 925 females) aged between 12 and 15 years were evaluated. Their orthodontic treatment need was assessed using the Index of Orthodontic Treatment Needs (IOTN) (dental health component (DHC)). Angle’s classes of malocclusion were also evaluated. Results. The prevalence of classes I, II, and III was 48.50%, 32.68%, and 4.32%, respectively. The IOTN showed that 21.59% had an extreme treatment need, 24.67% had severe treatment need, 24.07% had moderate treatment need, 14.7% had mild treatment need, and 15.02% had no treatment need. Conclusion. Class I malocclusion is the most common, while class III is the least prevalent in eastern Nepal. The majority of the children need orthodontic treatment.