alexa Dental Anomalies in Chinese Children with Cleft Lip and Palate
ISSN: 2161-1122

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Research Article

Dental Anomalies in Chinese Children with Cleft Lip and Palate

Hai Ming Wong1*, Moon Cheung Lai2 and Nigel Martyn King3

1Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong SAR, China

2Formally Postgraduate Student in Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong

3School of Dentistry, Faculty of Medicine, Dentistry and Health Sciences, The University of Western Australia, Perth, Australia

*Corresponding Author:
Hai Ming Wong
Department of Paediatric Dentistry
Faculty of Dentistry, The University of Hong Kong
Floor 2A, The Prince Philip Dental Hospital
34 Hospital Road, Hong Kong
Tel: +852 2859 0261
Fax: +852 2559 3803
E-mail: [email protected]

Received date: December 19, 2011; Accepted date: March 26, 2012; Published date: March 28, 2012

Citation: Wong HM, Lai MC, King NM (2012) Dental Anomalies in Chinese Children with Cleft Lip and Palate. Dentistry 2:127. doi:10.4172/2161-1122.1000127

Copyright: © 2012 Wong HM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background: The prevalence of dental anomalies in children with cleft lip and palate (CLP) has been said to be higher than in the normal children; however, such findings have not been expressed for different racial groups.
Aim: To determine the prevalence of anomalies in children with CLP and to ascertain if there were any differences between the prevalence figures for CLP and non-CLP children.
Design: This is a retrospective study looking at previously collected clinical records. The sample consisted of 231 pairs of age and gender matched CLP and non-CLP southern Chinese aged between 12 and 16 years. The dental records of the subjects were examined to gather data on anomalies of tooth number, size and shape.
Results: It was found that 57.6% of the CLP children had hypodontia, 10.0% hyperdontia, 8.7% taurodontism, 0.8% a double tooth, 1.30% dens evaginatus, and 42.4% had microdontia in the permanent dentition. The CLP subjects had a statistically higher prevalence of hypodontia (p<0.001), supernumerary (p<0.01) and microdontia (p<0.001) than the non-CLP subjects. More CLP children, were found to have one to three types of anomalies, than the non-CLP children (p<0.001).
Conclusion: This group of Chinese CLP children demonstrated a higher prevalence of dental anomalies than the non-CLP children.

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