Conclusion
caries-risk, caries
CARIES
Based on the 18-month results, the caries development rates increased over time regardless of the intervention group. After adjusting for clustering and confounding, no statistically significant differences in preventing approximal caries development in primary teeth were observed between the semi-annual application of 5%NaF varnish, 38%SDF, and placebo in high caries-risk preschool children in the school-based setting.