Risk Factors For Dental Caries Among Young Children In Shanghai

Objective To establish a prospective cohort of kindergarten children and longitudinally study the causes of early childhood caries.In order to further analyze the causes of new caries in younger children,formulate relevant predictions for the prediction and prevention of caries.Methods A cluster random sampling method was used to select one kindergarten in the suburbs of Pudong New District,Shanghai.All the small class children who signed the informed consent and cooperated with the inspection joined the study to conduct a questionnaire survey and oral examination,and followed up this group.This article is a statistical analysis and reporting of the results of the cohort children at baseline and one year after follow-up.Chi-square test was used to analyze the influence of factors such as gender,place of residence,family status,diet,oral hygiene and other factors on the dental caries rate of deciduous teeth.Independent sample t test and one-way analysis of variance were used to analyze and study dmft and ?dmft.On this basis,the binomial Logistic regression model and the general linear regression model were used to further analyze the high-risk factors affecting caries in young children.All relevant data statistics in this paper are processed and analyzed by SPSS 21.0 software package.Results In the first two years of this cohort study,the follow-up rate was 88.3%,the caries rate in the first year of baseline and follow-up were 58.3% and 69.8%,and the mean dmft values were 3.1±4.2 and 4.5±4.9,respectively.56.1% of children have new caries.Logistic regression results showed that children who lived in the suburbs and ate candy more frequently had higher rates of new caries.The results of the general linear regression equation showed that children in the suburbs,those who did not usefluoridated toothpaste and those who ate candy more frequently had higher new mean dmft values.In 2017,a cohort of 240 kindergarten children was established,with an average age of 4.2 years.Baseline 240 children(119 boys and 121 girls)had a caries rate and caries of 58.3%,3.1 ± 4.2.Logistic regression results showed that oral examinations had been performed in the past six months,and the mother's oral health was poor and she had candy.Children with a higher frequency have a higher rate of caries.The results of the general linear regression equation show that children living in the suburbs and whose mothers have poor oral health have higher average caries.Among the 212 cohort children(104 boys and 108 girls)who were followed up for one year,the prevalence of caries and caries were 69.8% and 4.5 ± 4.9 respectively.The follow-up rate for the first two years of the cohort study was 88.3%.56.1% of children had new dental caries,with an average increase of 1.3 ± 1.6.Logistic regression results showed that children living in the suburbs and eating candy more often had higher rates of new caries.The results of general linear regression equations show that children in the suburbs who did not use fluoride toothpaste and who ate candy more often had higher rates of new caries.Conclusions 1.Based on the analysis of baseline data,living in the suburbs,having oral medical treatment in the past six months,poor oral health status of mothers and high frequency of eating sweets are important risk factors for dental caries in preschool children;2.The results of cohort monitoring analysis showed that living in the suburbs,not using fluoride toothpaste and eating candy more frequently were important predictors of new caries in preschool children.