There are a wide variety of procedures that are considered oral surgery, but the most common are done to treat tooth pain and often include extractions.
A dental extraction is the removal of teeth from the dental socket in the alveolar bone. Extractions are performed for a wide variety of reasons, but typically to remove teeth which have become unrestorable through tooth decay, bone loss, or dental trauma; especially when they are associated with toothache. It is usually relatively straightforward, and the vast majority of extractions can be performed quickly while the individual is awake by using local anesthetic injections to eliminate painful sensations.
For first-time denture wearers, oral surgery can be done to correct irregularities of the jaws, such as bony growths, prior to creating the dentures, to ensure a better fit.