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Fluoride law ensures Iowa citizens understand water changes ERIN JORDAN, The Gazette FacebookTwitterEmail CEDAR RAPIDS, Iowa (AP) Less than a century ago, it was unusual for a 30-year-old not to have dentures, according to Dr. Bob Russell, Iowa’s public health dental director. A lot has changed in oral hygiene, but one of the most sweeping changes and one that helps poor and wealthy people alike is the fluoridation of drinking water. Boosting the natural fluoride in drinking water hardens the enamel on people’s teeth and makes teeth less vulnerable to cavities. But an increasing number of communities including cities in Iowa have stopped adding fluoride to drinking water, possibly based on misinformation about how much fluoride people get from other sources. A new Iowa law that went into effect July 1 requires public water system operators to give residents at least a 90-day notice before they stop adding fluoride to drinking water.

Cedar rapidsUnited statesIowa cityLinn countyUniversity of iowaSteven levyEldy millerDavid cwiertnyKent campbellCraig meachamDoug rayUs centers for diseaseUs national institutes of healthHarvard public healthHealth effects of environmental contaminationPublic health department