A dental extraction (also referred to as tooth extraction, exodontia, exodontics, or historically, tooth pulling) is the removal of teeth from the dental alveolus (socket) in the alveolar bone. Extractions are performed for a wide variety of reasons, but most commonly to remove teeth which have become unrestorable through tooth decay, periodontal disease or dental trauma; especially when they are associated with a toothache. Sometimes wisdom teeth are impacted (stuck and unable to grow normally into the mouth) and may cause recurrent infections of the gum (pericoronitis). If the teeth are crowded, sound teeth may be extracted (often bicuspids) to create space so the rest of the teeth can be straightened. After a tooth extraction, we will usually give advice which revolves around not disturbing the blood clot in the socket by not touching the area with a finger or the tongue, by avoiding vigorous rinsing of the mouth and avoiding strenuous activity. Sucking, such as through a straw, is to be avoided. If the blood clot is dislodged, bleeding can restart, or alveolar osteitis (“dry socket”) can develop, which can be very painful and lead to delayed healing of the socket. Smoking must be avoided for at least 24 hours as it impairs wound healing and makes dry socket significantly more likely.