On a recent shopping trip to Target I made my way down the tooth care aisle specifically to find Addie her first "real" toothbrush as well as some flouride free toothpaste. Prior to the new purchase we were using a toothbrush which came from one of those new baby kits. Addie really wasn't too interested in that old toothbrush any more than to chew on it, but add a little toothpaste and the kid is suddenly interested (shocking right?).
Honestly, I think she likes it mostly because she's teething and it's something to chew on. That and that toothpaste.