Although Portland voters resoundingly defeated a measure that would have fluoridated the city's drinking water last year, national guidelines are moving in the other direction.
This week, the American Dental Association ratcheted up its guidelines for toddlers, suggesting that parents begin brushing their children's teeth with the cavity-fighting substance as soon as the teeth are visible, rather than waiting until the children are old enough to spit out toothpaste.
From The New York Times:
WWeek 2015