Falls or other injuries can cause damage to the teeth and gums. If you believe you or your child have an injured mouth, it's important to see the dentist as soon as possible so that no teeth are lost from hidden injuries beneath the gums. Prompt treatment often can help prevent later bite problems. Quick action can even save a tooth that has been knocked completely out of its socket.
If you or one of your children happen to have a permanent tooth knocked out, remain calm and find the tooth. Carefully rinse it off. Hold it by the crown rather than the root and try to reinsert it in the socket. If you haven't got the stomach for that, put the tooth in a glass of milk - or keep it moist if you don't have milk - and take your child and the tooth immediately to the dentist.