Srinivasan Daya, Loganathan Divya, Kumar S Saravana, Louis C Joe, Eagappan Senthil, Natarajan Divya
Department of Pedodontics and Preventive Dentistry, Chettinad Dental College and Research Institute, Kancheepuram, Tamil Nadu, India.
Department of Orthodontia and Dentofacial Orthopedics, Chettinad Dental College and Research Institute, Kancheepuram, Tamil Nadu, India.
J Pharm Bioallied Sci. 2017 Nov;9(Suppl 1):S45-S49. doi: 10.4103/jpbs.JPBS_89_17.
The objective of the study was to evaluate the occlusal characteristics of primary dentition in 3-5-year-old children in Kancheepuram district.
A cross-sectional survey was carried out on children aged 3-5 year old in the Kancheepuram district. A total of 603 children were examined. Occlusal relationship was assessed separately on both right and left side and was classified as a flush terminal plane, mesial step, or distal step. Similarly, occlusal relationship of primary canine was examined and classified as Class I, II, or III. Primate space was measured in both the arches using digital Vernier caliper.
Pearson Chi-square test was used. Statistical significance was noted on both right and left side primary molar occlusion as well as in the canine occlusion across the three age groups. Primate spaces in both arches have been found to be significant across the three age groups. Mann-Whitney test between gender and occlusal relationship was found to be not significant.
Flush terminal plane is the most common primary molar occlusion found in the present study which is statistically significant. Most of the children had primate space present in upper and lower teeth which is statistically significant.
本研究的目的是评估金奈区3至5岁儿童乳牙列的咬合特征。
对金奈区3至5岁的儿童进行了横断面调查。共检查了603名儿童。分别在左右两侧评估咬合关系,并将其分类为平齐终末平面、近中阶梯或远中阶梯。同样,检查乳牙尖牙的咬合关系并分类为I类、II类或III类。使用数字游标卡尺测量两个牙弓中的灵长间隙。
采用Pearson卡方检验。在三个年龄组中,左右两侧的乳牙磨牙咬合以及尖牙咬合均具有统计学意义。在三个年龄组中,两个牙弓中的灵长间隙均具有统计学意义。性别与咬合关系之间的Mann-Whitney检验无统计学意义。
平齐终末平面是本研究中最常见的乳牙磨牙咬合类型,具有统计学意义。大多数儿童的上下牙齿中存在灵长间隙,具有统计学意义。