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Title: | Occlusal status in Asian male adults: Prevalence and ethnic variation | Authors: | Soh, J. Sandham, A. Yiong, H.C. |
Keywords: | Angle's molar classification BSI incisor classification Chinese Indian Malay |
Issue Date: | 2005 | Citation: | Soh, J.,Sandham, A.,Yiong, H.C. (2005). Occlusal status in Asian male adults: Prevalence and ethnic variation. Angle Orthodontist 75 (5) : 814-820. ScholarBank@NUS Repository. | Abstract: | The purpose of this study was to determine the occlusal status in young Asian male adults of three ethnic groups. Study models of a sample of male army recruits (N = 339, age 17-22 years) with no history of orthodontic treatment were assessed. The ethnic proportions of the sample were Chinese 76.1% (n = 258), Malay 17.7% (n = 60), and Indian 6.2% (n = 21). British Standard Institute (BSI) and Angle's classification were used to determine incisor and molar relationships, respectively. Chi-square test or Fisher's Exact test was performed to compare the occlusal traits between ethnic groups. The distribution of incisor relationships of the total sample consisted of Class I = 48.1%, Class II/1 = 26.3%, Class II/2 = 3.2%, and Class III = 22.4%. Right Angle's molar relationships were 49.9%, 24.5%, and 24.2% whereas left Angle's molar relationships were 53.1%, 25.1%, and 21.2% for Class I, II, and III, respectively. Comparison between ethnic groups found that Indian subjects were more likely to have Class II/1 malocclusions and clinically missing permanent teeth (P < .05). The study found that the overall prevalence of malocclusion (BSI) was Class I, Class II/1, Class III, and Class II/2 in descending order of proportions. Angle's Class I molar was most prevalent followed by Class II and Class III relations. A significant difference in occlusal status between the ethnic groups was found regarding incisor relationship and missing permanent teeth (P < .05). © 2005 by The EH Angle Education and Research Foundation, Inc. | Source Title: | Angle Orthodontist | URI: | http://scholarbank.nus.edu.sg/handle/10635/46736 | ISSN: | 00033219 |
Appears in Collections: | Staff Publications |
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