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Tooth anatomy

 

The part of the tooth you can see is called the crown. The outer surface of the crown is made of enamel. Just beneath the enamel is dentin, a substance harder than bone. The gum surrounds the base (root) of the tooth.

The root of the tooth extends down into the jawbone. The root contains blood vessels and nerves, which supply blood and feeling to the whole tooth. This area is known as the "pulp" of the tooth.

The jawbone is attached to all of the teeth. It keeps your teeth stable and allows you to move your mouth and teeth to chew. The lower jawbone is called the mandible. The upper jawbone is called the maxilla.

 

References

Lingen MW. Head and neck. In: Kumar V, Abbas AK, Aster JC, eds. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 16.

 
  • Tooth anatomy

    Tooth anatomy - illustration

    The structure of the tooth includes dentin, pulp and other tissues, blood vessels and nerves imbedded in the bony jaw. Above the gum line, the tooth is protected by the hard enamel covering.

    Tooth anatomy

    illustration

    • Tooth anatomy

      Tooth anatomy - illustration

      The structure of the tooth includes dentin, pulp and other tissues, blood vessels and nerves imbedded in the bony jaw. Above the gum line, the tooth is protected by the hard enamel covering.

      Tooth anatomy

      illustration

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            Review Date: 8/14/2015

            Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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