Second thoughts about fluoride.

  • Dan Fagin
  • Published 2008 in Scientific American


L ong before the passionate debates over cigarettes, DDT, asbestos or the ozone hole, most Americans had heard of only one environmental health controversy: fluoridation. Starting in the 1950s, hundreds of communities across the U.S. became embroiled in heated battles over whether fluorides—ionic compounds containing the element fluorine—should be added to… (More)