The Substance That Forms the Outer Covering of the Neck

Question

The substance that forms the outer covering of the neck and root of a tooth is:
A)enamel.
B)dentin.
C)cementum.
D)pulp.

Accepted Answer

Cementum is a specialized bony substance that covers the root of a tooth and provides an attachment surface for the periodontal ligament. Enamel is the hard, outermost layer that covers the crown of the tooth. Dentin is the layer beneath the enamel and cementum that makes up the bulk of the tooth. Pulp is the soft tissue that contains nerves and blood vessels and is located in the center of the tooth. Therefore, the correct answer is C, cementum.