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During wisdom teeth extraction, your doctor will give you a local anesthetic (pain reliever) before starting the procedure. This anesthetic numbs the entire mouth and allows the doctor to remove the tooth without pain. If the tooth is impacted or if the doctor believes he or she may need to cut the root or break the tooth, you may receive a local anesthetic as well as an intravenous medicine that helps keep you unaware of any pain. In some cases, steroids are delivered by an intravenous line to help lower the chance of swelling. In serious cases, people can have their wisdom teeth extracted in the hospital under general anesthesia.Helpful? 1 person found this helpful.