The neck of a tooth is at the junction of which structures?

The neck of a tooth is at the junction of which structures?

• A. Enamel and Dentin
• B. Pulp and Dentin
• C. Crown and Root
• D. Root and Crown

Answer: (D)

The neck, or cervix, is the boundary where the crown meets the root of the tooth. This region marks where the enamel covering the crown ends and the cementum covering the root begins (the cemento-enamel junction). Inside the tooth, the enamel-dentin border and the pulp-dentin border are located, but not at the neck. So the neck is defined by the junction of the crown and the root.

The neck, or cervix, is the boundary where the crown meets the root of the tooth. This region marks where the enamel covering the crown ends and the cementum covering the root begins (the cemento-enamel junction). Inside the tooth, the enamel-dentin border and the pulp-dentin border are located, but not at the neck. So the neck is defined by the junction of the crown and the root.