Do you cringe when you bite into an ice cream cone? Or do your teeth bother you if you are eating cold and hot foods at the same time? If you find yourself avoiding foods that are extremely hot or cold because they cause tooth discomfort, you may be experiencing tooth sensitivity. Tooth sensitivity is not uncommon, and most people experience it at some point. If you experience tooth sensitivity regularly, it can be an indication that you have a problem with your oral health.