DefinitionThe dentist's term for a knocked out tooth is "avulsed."Alternative NamesTeeth - broken; Tooth - knocked outConsiderationsA 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.CausesTooth accidents are commonly caused by:Accidental fallsSports-related traumaFightingCar accidentsBiting on hard foodFirst AidSave any tooth that has been knocked out for possible reimplantation. Bring it to your dentist as soon as possible. The longer you wait, the less chance there is for successful reimplantati