The study by Professor Loc Do of the University of Queensland Faculty of Health and Behavioural Sciences, School of Dentistry and colleagues examined the effect of early childhood exposures to water fluoridation on measures of school-age executive functioning and emotional and behavioral development in a population-based sample. This longitudinal follow-up study used information from Australia’s National Child Oral Health Study of 2012-14. Children aged 5-10 years at the baseline were contacted again after 7-8 years, before they had turned 18 years of age.