Phaphe Sandesh, Kallur Ravi, Vaz Anna, Gajapurada Jagadeesha, Raddy Suga, Mattigatti Sudha
Department of Orthodontics and Dentofacial Orthopedics, Krishna School of Dental Sciences, KIMSDU, Karad, Satara, Maharashtra India.
J Contemp Dent Pract. 2012 May 1;13(3):316-21. doi: 10.5005/jp-journals-10024-1144.
To determine the prevalence rates of different occlusal characteristics of permanent dentition in 12 to 14 years old children in Bagalkot city and to determine the differences in occlusal characteristics in the same children by age and sex.
A total of 1000 school going children between the age group of 12 to 14 years were selected in the study from Bagalkot city of India. All the occlusal parameters, such as molar relation, canine relation, overjet, overbite and crowding and spacing were recorded in a record sheet. The gender and sex difference was evaluated using Chi-square test.
According to the classification of Angle, the prevalence of class I, II and III malocclusions was 17.8, 30.1 and 1.6%, respectively. Ideal occlusion was 3.2% where as normal occlusion was 46.8%. An overjet of at least 4 mm or more was present in 15.2 and 7.2% had a reverse overjet. A total of 9.2 had an increased overbite and 10.6% had open bite.
Highly significant (p < 0.001) age differences were found for overjet, overbite and highly significant (p < 0.001) gender differences were found for crowding and spacing.
The study gives the prevalence of malocclusion amongst 12 to 14 years old in urban Indian population. The data can be used for may research projects and gives us a better understanding of malocclusion in urban Indian population.
确定巴加尔科特市12至14岁儿童恒牙列不同咬合特征的患病率，并确定同一儿童在年龄和性别上咬合特征的差异。
本研究从印度巴加尔科特市选取了1000名年龄在12至14岁的在校儿童。所有咬合参数，如磨牙关系、尖牙关系、覆盖、覆合以及拥挤和间隙情况均记录在记录表中。采用卡方检验评估性别差异。
根据安氏分类，安氏I类、II类和III类错牙合的患病率分别为17.8%、30.1%和1.6%。理想咬合为3.2%，正常咬合为46.8%。至少4毫米或以上的覆盖存在率为15.2%，反覆盖为7.2%。共有9.2%的儿童覆合增加，10.6%的儿童有开牙合。
发现覆盖、覆合存在高度显著的年龄差异（p < 0.001），拥挤和间隙存在高度显著的性别差异（p < 0.001）。
该研究给出了印度城市12至14岁人群错牙合的患病率。这些数据可用于许多研究项目，使我们能更好地了解印度城市人群的错牙合情况。
