In the event of a tooth getting knocked out, broken, or chipped you should immediately call a dentist and set up an emergency appointment. If a took is knocked out, make sure to pick it up by the crown (the area of the tooth with the chewing surface) and not by the root (the area of the tooth that is usually under the gum). You can rinse the tooth with cool water and then have your child hold the tooth in their mouth. If you get to a dental office quickly you may be able to have the tooth successfully re-implanted.