Department of Community and Public Health Dentistry, Kathmandu Medical College, Duwakot, Nepal.
Department of Orthodontics and Dentofacial Orthopaedics, Kathmandu Medical College, Duwakot, Nepal.
J Nepal Health Res Counc. 2021 Jan 21;18(4):637-643. doi: 10.33314/jnhrc.v18i4.2518.
Tooth wear is the loss of tooth structure from physical or chemical attack of nonbacterial origin. Predominant causative factor for tooth wear in primary dentition is erosion. This study was conducted to assess the prevalence of tooth wear and its associated factors in primary dentition.
Analytical cross-sectional study was conducted after obtaining ethical approval among 425 children aged two to 12 years, enrolled in different preschools/schools located in Kathmandu valley. Informed consent from parents as well as assent from children were obtained. Oral examination for assessing tooth wear was done using Smith and Knight Tooth Wear Index. Self-administered questionnaires were sent to parents for considering the factors associated with tooth wear. Data were entered in Microsoft Excel Sheet and analysed in Statistical Package of Social Sciences. The chi-square/fisher's exact test was done to establish the association between tooth wear and various factors.
Among total participants, 295 (69.4%) had tooth wear in at least one or more teeth. Tooth wear was seen significantly higher in children with increasing age (p<0.001). It was significantly associated with brushing technique (p=0.022), type of toothbrush (p=0.005), increasing duration of bottle feeding (p=0.003), in children frequently taking sour food stuffs (p=0.019) and soft drinks/juices (p<0.001).
Prevalence of tooth wear was high in primary dentition that increased with age. The condition was significantly associated with type of brushing technique, brushing frequency, materials used and type of diet. Tooth wear is a major problem in young age group having multifactorial etiology. It may lead to dental hypersensitivity and pulpal involvement if not followed up in early stages.
牙齿磨损是指牙齿结构由于非细菌性的物理或化学攻击而丧失。幼儿期主要的牙齿磨损致病因素是酸蚀。本研究旨在评估乳牙磨损的流行情况及其相关因素。
在获得伦理批准后，对来自加德满都谷地不同幼儿园/学校的 425 名 2 至 12 岁儿童进行了横断面分析研究。获得了家长的知情同意和儿童的同意。使用 Smith 和 Knight 牙齿磨损指数对儿童进行口腔检查，以评估牙齿磨损情况。向家长发放了自我管理问卷，以了解与牙齿磨损相关的因素。将数据录入 Microsoft Excel 工作表中，并使用社会科学统计软件包进行分析。采用卡方检验/ Fisher 精确检验，以确定牙齿磨损与各种因素之间的关联。
在所有参与者中，有 295 名（69.4%）至少有一颗或多颗牙齿磨损。随着年龄的增长，儿童的牙齿磨损情况明显增加（p<0.001）。与刷牙技术（p=0.022）、牙刷类型（p=0.005）、奶瓶喂养时间延长（p=0.003）、经常食用酸性食物（p=0.019）和软饮料/果汁（p<0.001）有关。
乳牙磨损的流行率较高，且随年龄增长而增加。该疾病与刷牙技术类型、刷牙频率、使用材料和饮食类型显著相关。牙齿磨损是一个多因素病因的年轻人群体中的主要问题。如果在早期阶段不及时处理，可能会导致牙齿敏感和牙髓感染。
