All of the mainstream expert professional groups and their members .. America's Pediatricians, Family Physicians, Internal Medicine Specialists, Dentist, Pediatric Dentists, Public Health scientists etc etc know that fluoridation prevents cavities and is safe.  The fear mongering about enamel fluorosis is purposefully misleading.  Too much toothpaste or high natural fluoride is the cause of all the fluorosis of legitimate concern.  That associated with drinking water is not visible to casual examination and actually protects teeth from cavities.  . .credible scientific references available.    The decision to cease fluoridation will, as it did in Calgary, lead to more cavities.