Why Is Your Tooth Sensitive to Hot and Cold?
Tooth sensitivity would occur as a sign of an underlying condition or as a minor dental issue. It mostly affects those with a worn-down enamel, which is the outer layer that protects our teeth. Enamel covers the areas of teeth above our gums. Any damage to this part would make the sensitive dentin exposed, causing the below layers and nerves prone to effects of the cold and heat. In addition, the cementum that covers the root would also be exposed and lead to sensitivity because of receding gums. [3]
