Digestion in the duodenum mostly depends upon the actions of the pancreatic enzymes and bile. When the food is not digested properly the gut's microorganisms tend to ferment it with releasing a lot of gas and many toxic irritated substances.
Report Abuse. Depends where in the mouth and how many.About 3 hours is normal.If you try eating with a numb mouth you could bite off a part of your cheek or tongue as it has no feeling.So eat when it goes down. London NW3 Â· 7 years ago. Thumbs up.
Most local anesthesia used in dentistry wears off within a few hours. Therefore if you still feel numb after that you should contact your dentist. In your case, it is likely the anesthesia to the nerves inside the tooth has worn off, however, the anesthesia to the tongue has not completely worn off yet.