Yes, a knocked out adult tooth can be put back in, but only with prompt treatment. Hold the tooth by the crown (never touch the root) and gently rinse away any debris or dust with milk or saliva. If you feel comfortable doing so, try to push the tooth back into your socket; otherwise, place it in a small cup of milk or saliva. Call our office immediately and we will make arrangements to see you as soon as possible so we can save your tooth.