After undergoing dental procedures that require anesthesia, patients may experience temporary numbness in their face. The duration of this numbness can vary depending on the type of procedure performed and the individual's response to anesthesia.
Typically, the numbness will begin to subside within a few hours after the procedure. However, in some cases, it may take up to 24 hours for the feeling to fully return. During this time, it is important to avoid chewing or biting on the affected side of the face, as this could cause further discomfort or injury.