You sip some ice water or bite into hot soup. Out of nowhere there’s a sharp zing in one of your teeth. It goes away quickly but then happens again the next time you drink/eat something hot/cold. If you’ve experienced this tooth pain you have sensitive teeth to hot/ cold. It’s one of the most common dental complaints we hear about. Why does this happen? What does it mean? When should you be concerned and see a dentist instead of just living with it? What's Actually Happening