Tooth extraction is the removal of teeth from its socket.Extractions are performed for a wide variety of reasons, but most commonly to remove teeth which have become unrestorable because of tooth decay, periodontal disease or tooth trauma , especially when they are associated with toothache.Sometimes wisdom teeth are stuck and are unable to grow normally into the mouth and may cause infections of the gum . Immediately after the tooth is removed, a bite pack is used to apply pressure to the tooth socket and stop bleeding .The area should not be touched with a finger or tongue and should avoid vigorous rinsing of the mouth and avoiding strenuous activity .Sucking through a straw should be avoided.If the blood clot is disturbed, bleeding can restart , or dry socket which is very painful can be developed .This may lead to delayed healing of the socket .Smoking is avoided for at least 24-48 hours as it impairs wound healing .Also, antibiotics are prescribed to reduce risk of certain post extraction complications