Exploring the association of dental caries with social factors and nutritional status in Brazilian preschool children

Caries and background factors in Norwegian and immigrant 5-year-old children

OBJECTIVES

The purpose of this study was to assess the caries status of 5-year-olds in a low caries area, and study associations between dental caries and parent-related factors: parents' education, national origin, oral health behaviours and attitudes.

METHODS

The material consisted of 523 children and was a stratified random sample. Clinical and radiographic examination was performed in 2007. Enamel and dentine caries were recorded at surface level. Parents filled in questionnaires regarding socioeconomic status, their own oral health behaviours and attitudes.

RESULTS

Most participants (66%) had no caries experience and 16% had enamel caries only. Dentine caries experience was present in 18% of the children, and 5% had dentine caries experience in five or more teeth. Surfaces with enamel caries constituted half of all surfaces with caries experience. In multiple logistic regression, statistically significant risk indicators for the child having dentine caries experience at the age of five were: having one or both parents of non-western origin (OR = 4.8), both parents (OR = 3.0) or one parent (OR = 2.1) with low education, parental laxness about the child's tooth brushing (OR = 2.8), parents' brushing their own teeth less than twice a day (OR = 2.2) and having parents with frequent sugar intakes (OR = 1.8).

CONCLUSION

Caries prevalence in 5-year-olds was strongly associated with parent-related factors signifying that information on parents' socioeconomic status, dental behaviours and attitudes should be considered when planning dental services for young children. Our results suggest that the real high risk group is non-western children whose parents have low education.

Effects of Dental Caries on Nutritional Status Among First-Grade Primary School Children

The aim of this study was to explore association between caries prevalence and nutritional status among first-grade primary school children. A cross-sectional study of 212 students was conducted. All students were weighed and measured and then the body mass index (BMI) was calculated. Each student underwent dental examination and was interviewed. Overall, caries prevalence was 80.2% and the average decayed, missing, and filled surfaces (dmfs) were 12.4 ± 12.3. Although none of the students was in the underweight category, 45.8% were in low percentile (5th < BMI-for-age < 15th). Multiple logistic regression showed that each extra carious surface (dmfs) increased the odds of being at risk for underweight (5th < BMI-for-age < 15th) by 3.1% after adjusting for gender and dental visits. Our findings stressed that caries has significant implications on overall child health and health personnel should increase awareness of negative impacts and promote healthy nutritional choices for children.