The dentist's term for a knocked out tooth is "avulsed."
Teeth - broken; Tooth - knocked out
A permanent tooth that is knocked out can sometimes be reimplanted. In most cases, only permanent, adult teeth are reimplanted into the mouth. Baby teeth are usually left out.
Immediately contact your dentist when a tooth is broken or knocked out. If you can find the tooth after the accident or injury, bring it with you when you seek medical help.
Tooth accidents are commonly caused by:
Roberts JR, Hedges JR, eds. Clinical Procedures in Emergency Medicine. 4th ed. Philadelphia, PA: Saunders; 2004.
Marx JA, Hockberger RS, Walls RM, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 5th ed. St. Louis, Mo: Mosby; 2002.
Auerbach PS. Wilderness Medicine. 4th ed. St. Louis, Mo: Mosby; 2001:562-571.