If you have ever awaken in the middle of the night to severe mouth pain or felt a sudden sharp shooting pain when biting on something hard you understand the need for an emergency dental visit in O’Fallon MO. Toothaches are one of the worst pains a person can deal with. They seem to take your focus away from anything you may be working on and make it difficult to think of anything else except that pain in your mouth. Mouth pain comes in several varieties. There is the simple infection you can get from a prick or scratch on the gum or inner cheek which quickly gets covered by the bacteria in your mouth. This bacteria can cause an infection to occur, but this infection will usually go away rather quickly.