Chapter 15 and 16 Exam Review

Question 1

which of the following features are located on the lingual surfaces of ALL permanent anterior teeth?

Answer 1

Marginal ridges, cingulum

Question 2

permanent anterior teeth have ____ developmental lobes and are _____ when viewed from either proximal surface.

Answer 2

4 developmental lobes
triangular

Question 3

the function of permanent incisors is:

Answer 3

biting and cutting

Question 4

the longest tooth in the mandibular arch of the permanent dentition is the mandibular:

Answer 4

canine

Question 5

which of the following lingual surfaces features is usually prominent on both tooth #7 and # 10?

Answer 5

prominent linguoincisal ridge

Question 6

which permanent tooth is usually the smallest and have the simplest form?

Answer 6

mandibular central incisors

Question 7

which of the following features is a result of the greater development of them middle lobe on both tooth #6 and #11?

Answer 7

labial ridge

Question 8

the completion of the root for the permanent maxillary incisor occurs at the age ____ years.

Answer 8

10 years

Question 9

the number of cusps present on the masticatory surface of a permanent canine is:

Answer 9

one

Question 10

the lingual ridge is located ____ on the lingual surface of permanent maxillary canines.

Answer 10

incisocervically

Question 11

which of the following features is noted on a newly erupted permanent mandibular canine ?

Answer 11

mesial cusp slope shorter than the distal

Question 12

the number of mamelons seen on a newly erupted permanent maxillary central incisor is ?

Answer 12

3

Question 13

one of the functions of permanent canines is:

Answer 13

tearing

Question 14

which of the following surfaces is considered the masticatory surface for permanent anterior teeth when newly erupted?

Answer 14

incisal ridge

Question 15

what is the eruption date for #8?

Answer 15

7 to 8 years

Question 16

A cingulum in varying developmental levels within the permanent dentition can be found on the lingual surfaces of :

Answer 16

all anterior teeth

Question 17

which tooth has the greatest depth of curvature on the CEJ on the mesial surface?

Answer 17

8

Question 18

the permanent mandibular canine, when compared to the maxillary canine has a:

Answer 18

narrower mesiodistal dimension

Question 19

what is a correct statement concerning permanent maxillary canines?
eruption

Answer 19

they may also fail to erupt fully, remaining impacted

Question 20

from which proximal surfaces are the permanent canines more accessible during instrumentation?

Answer 20

lingual approach

Question 21

what can occur to the permanent incisors to make their mamelons more noticeable?

Answer 21

whitening

Question 22

which teeth are more commonly involved in partial anodontia ?

Answer 22

maxillary lateral incisors

Question 23

whats a risk factor for periodontal disease on the permanent maxillary lateral incisors? lingual surface

Answer 23

linguogingival groove

Question 24

the incisal ridge of the permanent mandibular central incisors is usually at ____ degrees to the labiolingual axis of the crown.

Answer 24

90 degrees

Question 25

from its labial view, what helps one to distinguish the newly erupted permanent right maxillary canine from left?

Answer 25

the mesial and distal contacts are on two different levels

Question 26

what is correct concerning permanent mandibular canines and their eruption timetable?

Answer 26

they erupt before the maxillary canines

Question 27

whats a factor that makes the permanent canines stable teeth within the dentition?

Answer 27

guideposts during lateral deviation

Question 28

when viewed from the labial or lingual, the crown outline of the permanent canine appears

Answer 28

pentagonal with five sides

Question 29

the CEJ of the tooth is located at the border of the ____third of the root.

Answer 29

cervical

Question 30

the period of time that occurs between 6 and 12 years of age is the ____ dentition period.

Answer 30

mixed dentition

Question 31

when comparing the two arches of the two dentitions, one arch of the primary dentition usually has:

Answer 31

6 fewer teeth total

Question 32

which part of the tooth is covered by enamel and remains constant even if the patient undergoes gingival recession?

Answer 32

anatomical crown

Question 33

what divides each dental arch into quadrants?

Answer 33

midline

Question 34

where is the proximal height of contour of a tooth?

Answer 34

usually located at the contact area

Question 35

what is the older dental term for primary teeth is the ___ dentition.

Answer 35

deciduous

Question 36

what is a characteristic thats noted with a patient during the primary dentition period as compared to the permanent dentition period ? think of the Max centrals

Answer 36

lighter enamel color

Question 37

what is the term that describes the area of the crown where 3 surfaces join?

Answer 37

point angle

Question 38

the tooth surface that is towards the midline of the oral cavity is the:

Answer 38

mesial

Question 39

which tooth designation system is most commonly used during orthodontic therapy?

Answer 39

palmer notation method

Question 40

the division of each dental arch into three parts is based on the relationship to the:

Answer 40

midline

Question 41

what surfaces of a tooth are NOT difficult to access during dental procedures as well as home care?

Answer 41

facial or lingual surfaces

Question 42

how do the incisors function during mastication?

Answer 42

biting and cutting food

Question 43

how do the molars function during mastication?

Answer 43

grinding food

Question 44

which are considered transitional teeth in the permanent dentition?

Answer 44

canines

Question 45

when two teeth in the same arch come into contact, the curvatures next to the contact areas form spaces called:

Answer 45

embrasures

Question 46

what is a masticatory surface on a tooth?

Answer 46

incisal surface for anterior teeth occlusal surface for posterior teeth

Question 47

what are the linear elevations located on the masticatory surfaces of both anterior and posterior teeth?

Answer 47

ridges

Question 48

what is an imaginary line representing the long axis of a tooth?

Answer 48

root axis line

Question 49

what tooth designation system that uses the digits 1 through 32 ?

Answer 49

universal numbering system

Question 50

what tooth is the first permanent tooth to erupt into the oral cavity, usually signaling the end of the primary dentition period?

Answer 50

mandibular first molar

Question 51

what signals the end of the mixed dentition period ?

Answer 51

exfoliation of the last primary tooth

Question 52

during which dentition period may home care become difficult due to crowding that promotes dental biofilm retention?

Answer 52

mixed dentition period

Question 53

what is the term used to describe the method by which the teeth of the mandibular arch come into contact with the maxillary arch?

Answer 53

occulsion

Question 54

what are the only nonsuccedaneous teeth?

Answer 54

molars

Question 55

whats the function of the incisors ?

Answer 55

cutting food

Question 56

whats the function of the canines ?

Answer 56

hold and tear food

Question 57

whats the function of the premolars ?

Answer 57

crush and tear

Question 58

whats the function of the molars?

Answer 58

chew, grind, crush

Question 59

what can effect the form of the teeth throughout human life ?

Answer 59

attrition cavities trauma

Question 60

what tooth is the only tooth in the permanent dentition with a labial ridge?

Answer 60

canines

Question 61

what are clinical considerations for canines ?

Answer 61

cusps slopes could be altered by attrition

Question 62

height of contour is the

Answer 62

crest of curvature

Question 63

what are the 4 developmental lobes ?

Answer 63

3 labial 1 lingual

Question 64

what is "orange peel" gingiva called?

Answer 64

stippling

Question 65

what is the difference between line angle and point angle?

Answer 65

line angle: 2 surfaces join point angle: 3 surfaces join

Question 66

what is Dens en dente ?

Answer 66

tooth within a tooth

Question 67

what is hutchinsons?

Answer 67

congenital syphilis affects child with crowns of teeth in screwdriver shape

Question 68

what is avulsion ?

Answer 68

complete displacement of tooth

Question 69

what is a type of microdontia?

Answer 69

peg laterals

Question 70

what is the bony prominence located on the anterior surface of the maxilla?

Answer 70

canine eminence

Question 71

what are crescent-shaped ridges found on the surface of the enamel of teeth called?

Answer 71

imbrication lines

Question 72

what is a common location for supernumerary teeth to erupt?

Answer 72

maxillary central incisors considered a mesiodens

Question 73

what is the Universal number and International number for Maxillary canines ?

Answer 73

Universal: #6,11 International: #13, 23

Question 74

what is the Universal number and International number for Mandibular canines ?

Answer 74

Universal: #22, 27 International: #33, 43

Question 75

What are crown features for Maxillary canines ?

Answer 75

prominent lingual surface sharp cusp tip

Question 76

What are crown features for Mandibular canines?

Answer 76

less pronounced lingual surface. less sharp cusp tip

Question 77

what is the labial and lingual height of contour for both Maxillary and Mandibular canines?

Answer 77

Labial: cervical third Lingual: middle third

Question 78

what are root features for Maxillary canines ?

Answer 78

oval on cervical cross section. proximal root concavities blunt root apex

Question 79

what are root features for Mandibular canines?

Answer 79

oval on cervical cross section proximal root concavities with developmental depression giving tooth double rooted appearance pointed apex

Question 80

what is the universal number and international number for Maxillary Central Incisors?

Answer 80

Universal: #8, 9 International: #11, 21

Question 81

what is the universal number and international number for Maxillary Lateral Incisors?

Answer 81

Universal: #7, 10 International: #12, 22

Question 82

what is the universal number and international number for Mandibular Central Incisors?

Answer 82

Universal: #24, 25 International: #31, 41

Question 83

what is the universal number and international number for Mandibular Lateral Incisors?

Answer 83

Universal: #23, 26 International: #32, 42

Question 84

what are crown features for Maxillary Central Incisors?

Answer 84

widest crown mesiodistally greatest CEJ curve and height of contour pronounced distal cingulum and marginal ridges wide and deep lingual fossa

Question 85

what are crown features for Maxillary Lateral Incisors?

Answer 85

greatest crown variation pronounced lingual surface centered cingulum

Question 86

what are crown features for Mandibular Central Incisors ?

Answer 86

smallest and simplest tooth less pronounced marginal ridges symmetrical

Question 87

what are crown features for Mandibular Lateral Incisors ?

Answer 87

not symmetrical distally placed cingulum mesial marginal ridge longer than distal marginal ridge

Question 88

what is the height of contour for the Maxillary and Mandibular central and laterals ?

Answer 88

cervical third

Question 89

specific root features for Maxillary Central Incisors?

Answer 89

triangular on cervical cross section overall conical shape no root concavities rounded apex

Question 90

specific root features for Maxillary Lateral Incisors?

Answer 90

Oval on cervical cross section overall conical shape no root concavities root curves distally sharp apex

Question 91

specific root features for Mandibular Central and Lateral Incisors?

Answer 91

Elliptical on cervical cross section root longer than crown pronounced proximal root concavities (double rooted appearance)

Question 92

Maxillary central incisor eruption and completion?

Answer 92

7 to 8, 10

Question 93

Maxillary Lateral Incisor eruption and completion?

Answer 93

8 to 9, 11

Question 94

Maxillary canine eruption and completion?

Answer 94

11 to 12, 13 to 15

Question 95

Maxillary First Premolar eruption and completion?

Answer 95

10 to 11, 12 to 13

Question 96

Maxillary Second Premolar eruption and completion?

Answer 96

10 to 12, 12 to 14

Question 97

Maxillary First Molar eruption and completion?

Answer 97

6 to 7, 9 to 10

Question 98

Maxillary Second Molar eruption and completion?

Answer 98

12 to 13, 14 to 16

Question 99

Maxillary Third Molar eruption and completion?

Answer 99

17 to 21, 18 to 25

Question 100

Mandibular Central Incisor eruption and completion?

Answer 100

6 to 7, 9

Question 101

Mandibular Lateral Incisor eruption and completion?

Answer 101

7 to 8, 10

Question 102

Mandibular Canine eruption and completion?

Answer 102

9 to 10, 12 to 14

Question 103

Mandibular First Premolar eruption and completion?

Answer 103

10 to 12, 12 to 13

Question 104

Mandibular Second Premolar eruption and completion?

Answer 104

11 to 12, 13 to 14

Question 105

Mandibular First Molar eruption and completion?

Answer 105

6 to 7, 9 to 10

Question 106

Mandibular Second Molar eruption and completion?

Answer 106

11 to 13, 14 to 15

Question 107

Mandibular Third Molar eruption and completion?

Answer 107

17 to 21, 18 to 25