QUESTIONS AND CORRECT ANSWERS (DETAILED
ANSWERS)
Axial - ANSWER: pertaining to the head, neck, and trunk
Cementum - ANSWER: Specialized, calcified connective tissue that covers the
anatomic root of a tooth.
Cervical - ANSWER: Division of the root nearest the neck of the tooth
Cingulum - ANSWER: Raised, rounded area of the cervical third of the lingual
surfaces of anterior teeth
Concavities - ANSWER: A hollowed or rounded inward shape. Curved inward.
Contact Area - ANSWER: Area of the mesial or distal surface of a tooth that touches
the adjacent tooth on the same arch.
Convexities - ANSWER: Curved or rounded outward. Like the surface of a sphere.
Cusp - ANSWER: Major elevation on the chewing surfaces of canines and posterior
teeth.
Cusp Ridge - ANSWER: An elevation which extends in a mesial and distal direction
from the cusp tip. Cusp ridges form the buccal and lingual margins of the occlusal
surfaces of posterior teeth.
Dentin - ANSWER: Hard portion of the root that surrounds the pulp and is covered by
enamel on the crown and by cementum on the root.
Distal - ANSWER: Farther away from the trunk of the body.
Embrasures - ANSWER: Triangular spaces in a gingival direction between the
proximal and two adjoining teeth in contact.
Enamel - ANSWER: The hardest substance in the body and serves as the outer layer
of the dental crown.
Facial - ANSWER: Tooth surface that is closest to the face.
Buccal - ANSWER: Tooth surface that is closest to the inner cheeks.
Labial - ANSWER: Facial surface closest to the lips.