Supporting data for" Oral health of preschool children in Shenzhen and prevention of decay in their primary teeth through the use of fluoride toothpaste"

The oral health survey aimed to investigate the dental caries situation and its associated factors among the preschool children in Shenzhen. The caries status’ part of the two clinical trial aimed to evaluate the effects of daily toothbrushing with fluoride toothpaste.The oral microbiome analysis of the two clinical trial was to investigate the relative abundance and changes in the diversity of oral microbiome in preschool children after using fluoride toothpaste in short and long period.The data contains the Excel sheets of children's dmft index by clinical examination and their parents' questionnaire result. Analysis of covariance was used to assess the associations between the children’s dmft and the potential risk factors. Analysis of the caries increment comparison between the test group and control group.The microbiome data contains ASV profiling, Alpha diversity, beta diversity, taxonomy community and different abundance analysis.