Tooth sensitivity is very common and can come and go over time. If hot, cold, sweet or very acidic foods and drinks, or breathing in cold air makes your teeth or a tooth sensitive or painful then you have sensitive teeth. It is important to tell your dentist if you have any sensitive teeth, so that he or she can examine your mouth and see if the problem is tooth sensitivity and help choose your best treatment.
You can reduce your chances of getting tooth sensitivity by keeping your mouth as healthy as possible with good oral hygiene to help prevent receding gums and periodontal disease.
Brushing and flossing properly and using a low abrasion tooth paste can help reduce the chance of you having tooth sensitivity. A diet that is non acidic also helps.
Sensodyne toothpaste can be purchased at your local chemist, dentist and supermarket.