Sensitive Teeth-

Tooth sensitivity occurs when the enamel that protects our teeth gets thinner, or when gum recession occurs, exposing the underlying surface, the dentin, thus, reducing the protection the enamel and gums provide to the tooth and root.
Signs & Symptoms -
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 may have sensitive teeth. Tooth sensitivity can come and go over time.