Curated Video
Fluoride in drinking water, credited with dramatically cutting cavities and tooth decay, may now be too much of a good thing. It's causing spots on some kids' teeth.
HEADLINE: AP Exclusive: US says too much fluoride in water
CAPTION: Fluoride in drinking water, credited with dramatically cutting cavities and tooth decay, may now be too much of a good thing. Study shows it's causing spots on some...
TED-Ed
What Causes Cavities?
How do cavities form, and how can you avoid them? An amusing animated video demonstrates how microbes living in our mouths attack the surface enamel of our teeth and, if untreated, the subsurface levels as well.