Disha Patil, Poornima P, Pai Suryakanth M, Nagaveni N B, Roshan N M, Manoharan M
Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Tiruchengode, Tamil Nadu, India.
Department of Pedodontics and Preventive Dentistry, College of Dental Sciences, Davangere, Karnataka, India.
J Educ Health Promot. 2017 Dec 4;6:98. doi: 10.4103/jehp.jehp_24_17. eCollection 2017.
Although numerous studies have documented malocclusion in various age groups in India, the literature on the prevalence of malocclusion in mixed dentition is scanty. Dental caries is another most common condition affecting the general health. However, its association with malocclusion in mixed dentition is not well known.
The purpose of this study was to establish the prevalence of malocclusion and its association with caries experience in 8-9-year-old children of Davangere city, South Indian region.
The study design was a cross-sectional survey.
A total of 800 children from 350 schools (both males and females) were randomly selected for the study. -test and Chi-square test were used for statistical analysis.
The overall prevalence of malocclusion among 8-9-year-old children was 40.9%. The most prevalent malocclusion was crowding (11.5%), followed by excessive overjet (9.4%), deep bite (6.8%), spacing (6.5%), crossbite (4.5%), and open bite (3.2%). Class I molar relationship prevailed in 95.5% of children.
The prevalence of malocclusion in our study was in accordance with the other studies reported in India, which ranged from 19.6% to 90%. Furthermore, correlation of malocclusion and dental caries in the primary dentition, although nonsignificant, presented children with malocclusion to have a higher caries experience than children without malocclusion.
尽管众多研究记录了印度不同年龄组的错牙合畸形情况,但关于混合牙列期错牙合畸形患病率的文献却很少。龋齿是另一种影响总体健康的最常见病症。然而,其与混合牙列期错牙合畸形的关联尚不清楚。
本研究的目的是确定印度南部地区达万盖雷市8至9岁儿童的错牙合畸形患病率及其与龋齿经历的关联。
研究设计为横断面调查。
从350所学校中随机选取800名儿童(包括男童和女童)进行研究。采用t检验和卡方检验进行统计分析。
8至9岁儿童错牙合畸形的总体患病率为40.9%。最常见的错牙合畸形是牙列拥挤(11.5%),其次是前牙深覆盖(9.4%)、深覆牙合(6.8%)、牙间隙(6.5%)、反牙合(4.5%)和开牙合(3.2%)。95.5%的儿童为Ⅰ类磨牙关系。
我们研究中的错牙合畸形患病率与印度其他研究报告一致,范围在19.6%至90%之间。此外,尽管乳牙列期错牙合畸形与龋齿的相关性不显著,但有错牙合畸形的儿童比没有错牙合畸形的儿童有更高的龋齿经历。