This depends largely on the amount of sedation, the amount of dental work that you have received and your metabolism. Typically most patients who come in for sedation are in surgery for 20-40 minutes and then go through to our recovery room for 10-15 minutes where you will be supervised by a trained nurse who will give you and your chaperone the postoperative instructions.
For patients having treatment completed with LA, it only takes a few minutes to lose feeling in the area and full sensation should return in a few hours when the medication wears off.