Cross-sectional study of association between caries and fluoridated water among third-grade students in Pennsylvania.

Background: Caries is the most common chronic disease among children. In Pennsylvania, a comprehensive oral health Basic Screening Survey and assessment of the association between caries and community water fluoridation (CWF) among children have not been conducted.

Methods: From 2021 through 2022, the first Basic Screening Survey was conducted among third-grade students in Pennsylvania.