The Open Anthropology Journal

2010, 3 : 8-11
Published online 2010 January 20. DOI: 10.2174/1874912701003010008
Publisher ID: TOANTHJ-3-8

Incisor Winging in Chinese

John Y.K. Ling and Ricky W.K. Wong
2/F, Orthodontics, Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong

ABSTRACT

Aim:

To investigate the incisor wingings of the Southern Chinese and compare these with studies in different populations.

Materials and Methods:

The maxillary and mandibular incisor alignment in study casts of an unselected sample from a 12 year old Hong Kong Oral Health Survey of 12 year old children (n=459; 295 boys and 164 girls) were studied.

Results:

The prevalence of bilateral winging in the maxillary arch was 9% for males and 10% for females respectively. The prevalence of bilateral winging of the mandibular incisors was higher than the maxillary central incisors, at a prevalence of 22% for both sexes. Bilateral counter-winging of the central incisors was rare.

Conclusion:

The prevalence of bilateral winging or mesio-palatal rotation of upper central incisors was between low and intermediate in the Southern Chinese. On the contrary, the prevalence of counter-winging was low.

Keywords:

Incisor Winging, Southern Chinese.