Severe tooth decay or infection may make it impossible or too costly to repair a tooth.
Advanced gum disease may require a tooth to be pulled so it doesn't affect the supporting tissues and bone structures of your mouth.
A tooth may be extracted if it is blocking other teeth from coming in.
During orthodontic work, teeth may need to be removed to create room for the teeth that are being moved into place.
Wisdom teeth are often extracted either before or after they come in.