For a tooth that has been knocked out of your child’s mouth, take the crown of the tooth (the part you can usually see) and rinse it with warm water without any soap. If possible, gently place the tooth back in its socket and hold it in place with a clean towel or cloth. Place the tooth is milk if you cannot place the tooth back in the socket. You should call the kid’s dentist or go to the hospital in any occurrence. If you act quickly, usually within 30 minutes, permanent teeth can be saved. If a primary tooth is knocked out, schedule a visit to your dentist as soon as possible to ensure the entire tooth was knocked out, but in general, primary teeth will not be re-implanted.