I was "brushing" my sons' gums with a warm, damp washcloth twice a day from the day they were born, then moved up to the little finger brush when they began teething (my oldest got his first four teeth when he was four months old!), and as soon as they had teeth we switched to the smallest toothbrushes (and by the time they were 2 we were using floss as well). I think as long as you stay consistent and make a routine out of it your son will get the idea. Don't laugh at his antics because that will reinforce the "eating" of the toothbrush...make a big deal about the brushing motion. He'll understand in time.
at 12:12 PM on Oct. 7, 2008