Anatomy of a Tooth's Clinical Root

Questions and Answers

Maxillary molars have one mesial root

All molars have the same root structure

Mandibular molars have two roots, one mesial and one distal (correct)

Mandibular molars have three roots

It is the portion of the tooth covered by enamel.

It is the portion of the tooth embedded in the alveolar bone.

It is the portion of the tooth visible in the oral cavity.

It is the portion of the tooth covered by cementum. (correct)

On the inner surface of the tooth crown.

On the outer surface of the tooth crown.

Between the root and the crown of the tooth.

At the junction between the enamel and cementum. (correct)

Cementum. Signup and view all the answers

To enhance the chewing and grinding actions. Signup and view all the answers

Cementum helps anchor the tooth to the periodontal ligament. Signup and view all the answers

Study Notes

The root portion of a tooth can have a single apex (terminal end) or multiple apices, depending on the type of tooth.
Single-rooted teeth are typically found in anterior teeth and some premolars.
Multiple-rooted teeth can have a bifurcation (two roots) or trifurcation (three roots), dividing the root portion into multiple extensions or roots.

Anterior teeth (both maxillary and mandibular) have only one root each.
Mandibular molars have two roots: a mesial root and a distal root.
Maxillary molars have three roots: a mesiobuccal root, a distobuccal root, and a palatal root.

C-nerve fibers transmit information related to three sensations: pain, temperature, and itch.
A-delta nerve fibers are responsible for carrying information related to two sensations: pain and temperature.
A-beta nerve fibers have a specific function of transmitting information related to the sensation of touch.