Quiz Questions Flashcards
The mineralized tissue that underlies enamel in the crown and cementum in the root is
dentin
The connective tissue located in the central portion of the crown and root is called
pulp
Tooth surface that is closest to the midline.
mesial
Tooth surface that is farthest from the midline.
distal
Chewing surface of a posterior tooth.
occlusal
Biting surface of an anterior tooth.
incisal
The surface of a posterior tooth that faces the cheeks.
buccal
There are a total of 20 teeth in the primary dentition. There are no premolars in the primary dentition.
Are these statements true or false?
Both statements are true.
What is the term for the junction of enamel and cementum?
cementoenamel junction
Each dental arch can be divided by an imaginary line through the midline resulting in 4 parts. Each part is called a sextant. True or false?
The first statement is true. The second statement is false.
The arches can be divided into 4 or 6 parts. Four parts are quadrants; 6 parts are sextants.
Mesial and distal surfaces between adjacent teeth are termed proximal. T or F?
True
When dividing a tooth crown into three horizontal divisions, the division that is closest to the root is the cervical third. T or F?
True
The apical 1/3 of a tooth root is closest to the crown.
T or F?
False
From a facial/labial view, the outline shape of the permanent maxillary central incisor root is much like an ice cream cone. T or F?
True
The permanent maxillary central incisor has a longer root than the permanent maxillary lateral incisor. T or F?
False
Developmental lobes that form the facial surface of incisors also contribute to mamelons. T or F?
True
In a facial/labial view, the permanent maxillary central incisor is more symmetrical than the permanent maxillary lateral incisor. T or F?
True
In the permanent maxillary lateral incisor, the lingual fossa is shallow and large. T or F?
False
The universal number for the permanent LEFT mandibular central incisor is
24
The depression on the lingual surface of incisors is called a
fossa
The permanent mandibular incisor that is the most symmetrical is the
central incisor
Of the permanent mandibular incisors, the one that is largest is the
lateral incisor
In permanent mandibular incisors, the proximal surface that has the deepest root depression is distal. T or F?
True
For both the permanent mandibular incisors, the mesial cervical line curve is greater than the distal cervical line curve. T or F?
True
Permanent mandibular incisors erupt earlier than permanent maxillary incisors. T or F?
True
The cingulum of the permanent mandibular central incisor is toward the distal. T or F?
False
The cingulum of the permanent mandibular lateral incisor is centered. T or F?
False
What is a marginal ridge?
Marginal ridges are elevations of enamel that form the mesial and distal borders of a tooth. In incisors, they are seen on the lingual surface and converge toward the cingulum.
