The ADA News (2/10, Versaci) reports researchers have found that circulating levels of perfluorodecanoic acid “may be associated with dental caries in children.” The researchers “looked at the association between seven perfluoroalkyl and polyfluoroalkyl substances and dental caries in 629 U.S. children ages 3 to 11 years, based on 2013-14 National Health and Nutrition Examination Survey data.” The study was published in the fall 2019 issue of the Journal of Public Health Dentistry.