Anatomic Crown: What It Is & The 3 Layers

The crown is the surface of the tooth that lies above the gumline, and it contains three different dental layers: enamel, dentin and pulp. Each layer serves a distinct purpose within the tooth structure. Just like the crunchy middle, creamy coating and crispy shell of a chocolate-covered peanut, the layers of the anatomic crown can be easily identified.

Inside the core of the tooth, notes the ADA, the blood and nerve supply resides in a small chamber called the pulp chamber. Like the peanut inside the candy-coated chocolate, the pulp is completely surrounded by the dentin. Since the pulp holds the vital components, like nerves and blood vessels, strong sensitivity or pain can flare up if it is exposed to bacteria or the tooth is broken, according to the University Hospital of Copenhagen. Inflammation of the pulp is also one of the main reasons for root canal treatment.

When your dentist talks about replacing or repairing a crown, they might not always mean the anatomic portion. The clinical crown is the tooth structure that can be seen when looking into your mouth, while the anatomic portion also includes tooth surface hidden by the gumline. As the teeth are erupting, or growing into place, the entire anatomic crown might not be visible, but when the gum tissue covers all portions of the root and all of the enamel-covered portion of the crown is visible, the anatomic and clinical crowns are one in the same.

The role of the anatomic crown is an important one. It contains all of the chewing surface of your teeth, as well as the protruding tooth area that your tongue strikes against to help you articulate words. The nerves contained in the pulpy cores of your teeth warn your body of heat, cold and pain, and the hard enamel keeps bacteria from entering into your teeth.

If you're curious about your tooth structure, you can ask your dentist. And if you munch on any chocolate-covered peanuts, be sure to brush afterward.

Oral Care Center articles are reviewed by an oral health medical professional. This information is for educational purposes only. This content is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your dentist, physician or other qualified healthcare provider.