People in third world countries also throw chicken bones onto the lids of oil drums to predict the future. This is up there with only counting meat as protein. There's still calcium in things that aren't made of 100% calcium. Eat some broccoli or something. If we're going to eat something a lot like teeth in order to regrow teeth then lets cut out the middle man and just eat teeth. I can get you a full set of teeth by three o'clock no problem at all.
Who needs to regrow teeth anyway? Maybe you shouldn't have tried to steal Nazi Edward Norton's car.