If your child fractures or knocks out a tooth, you may store the tooth or fragments in a clean container of milk. If milk is not available, you may use the child’s saliva to store the tooth. Never use water to transport a broken or knocked-out tooth. You must visit the dentist immediately to prevent infection and other complications that are brought on by chipped or knocked-out teeth. If the tooth is knocked out, only touch the crown of the tooth and not the root. Your child’s dentist will be able to repair your child’s tooth or fix it with a crown.