If possible, find the tooth. Handle it by the crown, not by the root. You may rinse the tooth with water only.

DO NOT clean with soap, scrub or handle the tooth unnecessarily. Inspect the tooth for fractures.
If it is sound, try to reinsert it in the socket. Have the patient hold the tooth in place by biting on a gauze.

If you cannot reinsert the tooth, transport the tooth in a cup containing the patient’s saliva or milk.

If the patient is old enough, the tooth may also be carried in the patient’s mouth (beside the cheek).

The patient must see a dentist IMMEDIATELY! Time is a critical factor in saving the tooth.