微创医学

目的了解广西桂北地区农村学龄期留守儿童龋病的发病情况，并针对性开展防治和早期干预。方法抽取广西桂林市临桂区农村学龄期儿童818例作为调查对象，包括留守儿童（留守组）和非留守儿童（非留守组）各409例。比较两组的口腔健康情况（乳牙、恒牙患龋率，充填率）。再根据是否患龋病，将留守组分为患龋病组和非患龋病组，采用多因素Logistic回归模型分析留守儿童患龋病的影响因素。针对分析结果进行健康促进和干预（窝沟封闭、非创伤性修复治疗），观察干预效果。结果留守组龋齿的充填率低于非留守组，乳牙龋均和总龋均高于非留守组（P<0.05）。多因素分析结果显示，性别、使用含氟牙膏刷牙、是否定期涂氟、有无牙齿矫正，以及对牙齿健康有害食物的认知是留守儿童患龋病的影响因素（P<0.05）。干预后，留守儿童乳牙患龋率、总患龋率低于干预前，乳牙龋均、总龋均优于干预前，对于窝沟封闭作用的认知水平高于干预前（P<0.05）。结论与非留守儿童相比，广西桂北地区留守儿童总龋均较高，性别、使用含氟牙膏刷牙、是否定期涂氟、有无牙齿矫正，以及对牙齿健康有害食物的认知是留守儿童患龋病的影响因素。针对影响因素进行干预，可以降低留守儿童患龋率，提高其口腔健康知识水平。

Objective To investigate the prevalence status of dental caries status amongleft-behind school-age children aged in rural northern Guangxi, and carry out targeted prevention and early intervention accordingly. Methods A total of 818 rural school-age children in rural areas of Lingui District, Guilin City, Guangxi were selected as study subjects, including 409 left-behind children (left-behind group) and 409 non-left-behind children (non-left-behind group). The oral health status (caries prevalence of deciduous and permanent teeth and teeth restoration rate) was compared between the two groups. The left-behind group was then divided into a caries-affected group and a caries-free group according to caries status. A multivariate logistic regression model was used to analyze the influencing factors of dental caries among left-behind children. Health promotion and intervention measures (pit and fissure sealing, atraumatic restorative treatment) were implemented based on the analysis results, and the intervention effect was observed. Results The left-behind group exhibited a lower teeth restoration rate, along with higher mean deciduous teeth caries and mean total caries score, compared with the non-left-behind group (P<0.05). Multivariate logistic regression analysis identified gender, fluoride toothpaste use, regular fluoride application, history of orthodontic treatment, and awareness of cariogenic foods as influencing factors associated with dental caries in left-behind children (P<0.05). After the intervention, left-behind children demonstrated decreased deciduous teeth caries prevalence rate and total caries prevalence rate, reduced mean deciduous teeth caries and mean total caries scores, and improved awareness of the benefits of pit and fissure sealing relative to baseline (P<0.05). Conclusion Compared with non-left-behind children, left-behind children in rural northern Guangxi had a higher mean total caries score. Gender, fluoride toothpaste use, regular fluoride application, history of orthodontic treatment, and awareness of cariogenic foods are the influencing factors for dental caries in left-behind children. Targeted interventions based on these influencing factors can reduce the caries prevalence of left-behind children and improve their oral health knowledge.