Your dentist will probably advise that you fast for a specified period of time, usually at least 12 hours before having teeth removed, especially if you’re undergoing sedation. Eating before going under sedation increases the risk of nausea, asphyxiation, and other complications during and after the procedure.
If you’ll only be undergoing extraction with a local anesthetic, you may need to fast for a shorter amount of time. Regardless, be sure to follow all preoperative and postoperative instructions from your dentist carefully to help make sure your extraction goes smoothly.