dental health

John Batchelor kicked things off with a personal anecdote -- as a child in the 1950s, cavities were common for him, but his children, born in the 1990s, had virtually none. He asked why this shift.

In the interests of dental health, everyone knows it's important to brush, brush, brush — preferably with a fluoride-containing toothpaste — twice a day. And children should be taught to do so as well, even before their permanent teeth erupt.