All four types of teeth have multiple layers. Immediately under the top-most coating of enamel is the dentin, followed by the pulp cavity, and cementum. Inside the tooth lie nerves, living cells, and blood vessels. Continual wear and tear will expose these vital parts of the tooth, and this can eventually cause irreparable damage.
MicrovOne / Getty Images
Receive updates on the latest news and alerts straight to your inbox.
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.