Singh A, Purohit B, Sequeira P, Acharya S, Bhat M
Department of Public Health Dentistry, People's College of Dental Sciences, Bhopal, India.
Community Dent Health. 2011 Dec;28(4):313-6.
To assess prevalence of malocclusion and orthodontic treatment needs among 12 year old Indians using the Dental Aesthetic Index, and to find its association with dental caries.
927 schoolchildren were randomly selected and their DAI and dentition status scores were recorded as per 1997 World Health Organization criteria. Clinical exams were carried out by one trained and calibrated examiner. The Chi-square test, Z-test and Spearman's correlation test were carried out.
Mean DAI score was 19.2 (sd 6.8). Differences were found between male and female DAI scores (Z < or = 0.05). 82% of children had DAI scores < 26 with no or minor malocclusion requiring no or little treatment, 3.2% had DAI scores 31-35 with severe malocclusion requiring highly desirable treatment and 1.8% DAI scores > 35 with handicapping malocclusion requiring mandatory treatment. A mean DMFT of 1.15 (sd 1.62) was recorded. Severe and handicapping malocclusions were associated with dental caries.
The distribution of DAI scores among Indian schoolchildren differs from that reported in other populations. Positive correlation was found between severe and handicapping malocclusion with dental caries.
使用牙科美学指数评估12岁印度儿童的错颌畸形患病率和正畸治疗需求，并找出其与龋齿的关联。
随机选取927名学童，按照1997年世界卫生组织标准记录他们的牙科美学指数（DAI）和牙列状况得分。由一名经过培训且校准合格的检查者进行临床检查。进行卡方检验、Z检验和斯皮尔曼相关性检验。
平均DAI得分为19.2（标准差6.8）。男性和女性的DAI得分存在差异（Z≤0.05）。82%的儿童DAI得分<26，无或有轻微错颌畸形，无需或只需少量治疗；3.2%的儿童DAI得分在31 - 35之间，有严重错颌畸形，需要非常必要的治疗；1.8%的儿童DAI得分>35，有妨碍性错颌畸形，需要强制性治疗。记录的平均龋失补牙数（DMFT）为1.15（标准差1.62）。严重和妨碍性错颌畸形与龋齿有关。
印度学童中DAI得分的分布与其他人群报告的不同。严重和妨碍性错颌畸形与龋齿之间存在正相关。
