The neck of a tooth is at the junction of which two parts?

The neck of a tooth is at the junction of which two parts?

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

Answer: (A)

The neck of a tooth marks the boundary between the crown—the visible portion covered by enamel—and the root—the part embedded in the jaw and covered by cementum. At the cervical region, the enamel ends and the cementum begins, the line known as the cementoenamel junction, which defines where the crown and root meet. This is why the neck corresponds to the junction of crown and root. Internal structures like dentin and pulp stay inside the tooth, and while enamel and cementum meet at the same line, the two main parts that come together at the neck are crown and root.

The neck of a tooth marks the boundary between the crown—the visible portion covered by enamel—and the root—the part embedded in the jaw and covered by cementum. At the cervical region, the enamel ends and the cementum begins, the line known as the cementoenamel junction, which defines where the crown and root meet. This is why the neck corresponds to the junction of crown and root. Internal structures like dentin and pulp stay inside the tooth, and while enamel and cementum meet at the same line, the two main parts that come together at the neck are crown and root.