Teeth Sensitivity
Teeth sensitivity is discomfort that is triggered by hot, cold, sweet or sour foods and drinks, or even by breathing cold air. Pain can be sharp, sudden and shoot deep into tooth nerve endings.
What is tooth sensitivity?
Tooth sensitivity occurs when the underlying layer of your teeth -- the dentin -- becomes exposed as a result of receding gum tissue (the protective blanket that covers the tooth roots). The roots, which are not covered by hard enamel, contain thousands of tiny tubules leading to the tooth’s never center (the pulp). These dentinal tubules (or channels) allow the stimuli -- for example, the hot, cold or sweet food -- to reach the nerve in your tooth, which results in the pain you feel.
