While the dentist's primary objective is to preserve teeth, some conditions and circumstances dictate that a tooth must be extracted. Causes include infection, crowding, and impaction. Whatever the reason, for a simple extraction, the area is numbed with a local anesthetic beforehand. After the extraction, the initial healing period typically takes one to two weeks. Within the first 24 hours, there may be some swelling and residual bleeding. It is important not to dislodge the blood clot that forms on the extraction site, which is necessary to promote healing. Occasionally, this clot can break down, leaving what is known as a "dry socket," which may lead to discomfort while the socket is repaired through a secondary healing process.
P.S. An "impacted" tooth is one which fails to erupt. Wisdom teeth are often impacted.