Chapter 1 & 2

Question 1

Two triangular ridges make up what?

Answer 1

Transverse ridge

Question 2

How many teeth are present in a complete adult dentition?

Answer 2

32

Question 3

What teeth are not present in a primary dentition?

Answer 3

First Premolar

Question 4

In an adult mouth, what are the posterior teeth called?

Answer 4

Molars and Premolars

Question 5

How many teeth are present in a primary dentition?

Answer 5

28

Question 6

What is the outer layer of crown is?

Answer 6

Enamel

Question 7

What is the occlusal surface?

Answer 7

The chewing surface of posterior teeth

Question 8

Another word for facial surface for anterior teeth? Posterior?

Answer 8

Posterior teeth has a Buccal surface.

Anterior teeth has a Labial surface.

Question 9

When permanent teeth start to erupt what are they called?

Answer 9

Mammalians

Question 10

The periodontal ligament attaches the alveolar bone to what tooth tissue?

Answer 10

Cementum

Question 11

Most sensitive area of the tooth?

Answer 11

Dentin

Question 12

What is the apex of the root?

Answer 12

Tip of the end of the root

Question 13

What are the smallest teeth in the mouth?

Answer 13

24, #25

Question 14

Which tooth has the shortest root relative to the crown?

Answer 14

8 and #9

Question 15

All anterior teeth were formed by ?

Answer 15

frontal lobes

Question 16

What are the functions of incisors?

Answer 16

• Cut food
• Articulate speech
• Support lips (esthetics)
• Guide mandible during movement

Question 17

Which incisor crown is the longest?

Answer 17

Maxillary central incisor crown is the longest incisor crown

Question 18

In an adult mouth with ideal alignment and an ideal occlusion, which surface of tooth #16 touches touch #17?

Answer 18

Occlusal

Question 19

One facial cups of a premolar (or molar) has four ridges: a buccal ridge, a mesial cusp ridge, a distal cusp ridge, and a____

Answer 19

Triangular ridge

Question 20

The marginal ridges and cingulum of the permanent maxillary centra incisor are ______ than those of the permanent mandibular incisor.

Answer 20

More prominent

Question 21

All but one type of incisor have a mesioincisal angle more square (more acute) than the distal angle. Which type is the EXCEPTION?

Answer 21

Mandibular central incisor

Question 22

How many teeth in the complete adult dentition have a labial surface?

Answer 22

Twelve

Question 23

Four structures that comprise the periodontium?

Answer 23

Gingiva
Alveolar bone
Cementum
Periodontal ligament

Question 24

The broadest (faciolingually) incisal or occlusal embrasure is normally found between which permanent maxillary teeth?

Answer 24

First premolar and second premolar

Question 25

In a mouth with ideal tooth alignment and in ideal occlusion, which surface of tooth #8 touches tooth #9?

Answer 25

mesial

Question 26

The faciolingual length of a tooth can be measured when viewing the tooth from several views. Which view would NOT be appropriate when measuring the faciolingual dimension?

Answer 26

labial

Question 27

The distal contact area of the permanent maxillary lateral incisor is located in the _____

Answer 27

Center of the middle third

Question 28

Compared to permanent maxillary lateral incisors, maxillary central incisors are more likely to exhibit____

Answer 28

The cingulum positioned distally

Question 29

A distinguishing deeper root concavity on the mandibular lateral incisor is on the ____ root surface

Answer 29

Distal root

Question 30

The distal contact area of the permanent maxillary central incisor is located in the _______

Answer 30

Junction of the incisal and middle thirds

Question 31

Which incisor is considered the most symmetrical?

Answer 31

Mandibular central incisor

Question 32

_____ are rounded incisal extensions of the labial lobes found on newly erupted or unworn permanent incisor teeth

Answer 32

Mamelons

Question 33

A conical mass found on the occlusal surface of posterior teeth and that also constitutes the incisal surface of a canine is called a _____

Answer 33

cusp

Question 34

Viewed from the facial aspect, the mandibular lateral incisor is _______ mandibular central incisor

Answer 34

Wider mesiodistally than

Question 35

On incisors, the number of lobes on the facial surface (which is the same as the number of mamelons on the incisal surface) is

Answer 35

Three

Question 36

The facial and lingual height of contour of all anterior teeth is the cervical third of the tooth. T or F

Answer 36

False

Question 37

The borders or limits of the lingual fossa of the maxillary lateral incisor are the cingulum, the ________________, the ________________, and the _____________

Answer 37

distal marginal ridge; incisal edge or ridge; mesial marginal ridge

Question 38

In ideal tooth alignment, what surface of tooth #16 touches tooth #15?

Answer 38

Mesial

Question 39

Which characteristics are normally seen on ALL types of permanent incisors?

Answer 39

Facial and lingual crests of curvature are located in the cervical third

Question 40

In a mesial view of a maxillary central incisor, vertical lines may divide the crown into thirds called ____, ____, and _____.

Answer 40

Labial (or facial) Middle Lingual

Question 41

What characteristics are seen most of the time on ALL permanent incisors?

Answer 41

The root is longer than the crown

Question 42

Which tooth has the shortest root relative to its crown?

Answer 42

Maxillary central incisor

Question 43

When viewed from the proximal, which tooth (and surface) has the greatest curvature of its cervical line (cementoenamel junction) when compared to all other teeth in the mouth?

Answer 43

#8, mesial surface

Question 44

The maxillary lateral incisor is smaller than the maxillary central incisor in all dimensions except root length.

Answer 44

False