What should I do if my child knocks out a permanent (adult) tooth?

This is a true emergency — there's only a short window, ideally about 15 minutes, to save the tooth. Pick it up by the crown (the top), never the root, and gently place it back in the socket if you can. If you can't, transport it in a cup of milk and call us immediately at (718) 761-7316 on your way in.