目的：探讨婴幼儿龋病（ECC）的危险因素。方法选取100例确诊为龋病的2～4岁儿童作为病例组，选取100例口腔保健评估为健康的同龄儿童作为健康组，对两组儿童的父母进行问卷调查，并对可能影响ECC 发生的因素进行单因素及多因素分析。结果单因素分析显示含奶嘴睡觉、开始刷牙年龄、吃零食、牙龈指数、变形链球菌感染、睡前刷牙对ECC的发生有影响（P＜0．05）。经常含奶嘴睡觉、开始刷牙时间＞2岁、经常吃零食、牙龈指数＞0、变形链球菌感染是ECC的危险因素（P＜0．05），睡前刷牙是并发ECC的保护因素。结论儿童多吃零食、变形链球菌感染、牙龈指数等是儿童并发龋病的危险因素，睡前刷牙是儿童并发龋病的保护因素。%Objective To investigate the risk factors for early childhood caries ( ECC ) .Methods One hundred children who were diagnosed as caries and aged 2 to 4 years were enrolled in the case group .And 100 children aged 2 to 4 years with healthy oral care were enrolled in the health group .The questionnaire survey was performed among children′s parents in two groups .And the factors probably influencing the occurrence of ECC were analyzed with univariate and multivariate analysis .Results Univariate analysis showed that sleeping with a pacifier,the age for beginning brushing teeth ,snacks,gingival index,Streptococcus mutans infection and teeth brushing before sleeping influenced the occurrence of ECC(P<0.05).Sleeping with a pacifier often,the age for beginning brushing teeth >2 years,often eating snacks,gingival index>0,Streptococcus mutans infection were the risk factors for ECC among children ,and teeth brushing before sleeping was the protective factors for ECC (P<0.05).Conclusion Eating snacks often,Streptococcus mutans infection and gingival index are the risk factors for caries in children ,and teeth brushing before sleeping is the protective factor for caries among children .
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