Damaged enamel as a reason for sensitive teeth Have you ever experienced sudden pain or sudden discomfort after a bite of ice cream or a hot drink? You are definitely not alone. Dental sensitivity is pain or discomfort in the teeth in response to certain stimuli such as heat or cold. By changing up your oral hygiene routine, this sensitivity can be easily treated. Some of us have more sensitive teeth than others due to thinner enamel. Enamel is the outer layer of the tooth that has a protective function. When the enamel is damaged, you will experience sensitive teeth. Combat tooth sensitivity whiten your teeth strengthen your teeth Blocks nerve signals. With unique Active Micropearls technology