When the enamel is worn of or the gums have receded, causing the tiny dentinal tubule to be exposed, pain can be caused by touching your teeth with hot or cold foods and beverages, or exposing them to cold air. Exposed areas of the tooth may elevate pain and even affect or change your eating, drinking, and breathing habits. Taking a single spoon of ice cream, also can be a painful experience for people who have sensitive teeth. Tooth sensitivity is one of the most common complaints among dental patients. Some commercialy available toothpaste contain abrasive ingredients that may be too harsh for people who have sensitive teeth. Tooth sensitivity can be reduced by using a desensitizing toothpaste; If a tooth is highly sensitive for more than three or four days and reacts to hot and cold temperatures, it’s best to get a consultation from your dentist to determine the extent of the problem.