Which substance covers the root of the tooth?

Cementum

The correct answer is Option (4) -Cementum

The substance that covers the root of the tooth is: Cementum

Cementum is a hard, bonelike tissue that covers the root of the tooth. It serves to anchor the tooth firmly in the jawbone by attaching to the fibers of the periodontal ligament. Cementum is not as hard as enamel, which covers the crown of the tooth, but it provides essential protection for the root surface and helps to maintain the stability and integrity of the tooth within the socket.