Quiz 2 Review

Question 1

What is the difference in size and crown dimension between primary and permanent teeth?

Answer 1

Primary teeth are smaller in size and crown dimension

Question 2

Do primary or permanent teeth have more prominent cervical ridges?

Answer 2

Primary

Question 3

T/F Primary teeth are lighter in color and are narrower at their necks than permanent teeth

Answer 3

True

Question 4

What is the difference between primary and permanent molar roots?

Answer 4

Primary molar roots are more widely flared

Question 5

How do the roots of primary anterior teeth compare to their respective crowns?

Answer 5

narrower and longer

Question 6

A narrow root an wide crown causes what anatomical structure to differ?

Answer 6

Cervical area at the CEJ

Question 7

Is the mesiodistal measurement lesser/greater than the faciolingual measurement on a primary maxillary central incisor?

Answer 7

Mesiodistal is greater than faciolingual

Question 8

Where is the incisal ridge centered over on the primary maxillary central incisor?

Answer 8

the main bulk of the crown

Question 9

Where is there a curvature on the primary maxillary central incisor’s incisal ridge?

Answer 9

lingual on the distal portion

Question 10

Which surface is wider and smoother on the primary maxillary central incisor: facial or lingual?

Answer 10

facial

Question 11

Where does the lingual surface on a primary maxillary central incisor taper towards?

Answer 11

cingulum

Question 12

What surfaces are wide on a a primary maxillary central incisor to aid in contract with adjoining teeth?

Answer 12

mesial and distal

Question 13

What is the crown shape of a primary maxillary canine?

Answer 13

diamon/arrow

Question 14

The cusp portion on a primary maxillary canine is slightly _______ of the center of the tooth

Answer 14

distal

Question 15

Which cuspal ridge is longer on a primary maxillary canine: mesial or distal?

Answer 15

Mesial cuspal ridge is longer than distal cuspal ridge

Question 16

T/F the proximal contact locations are at different levels on a primary maxillary canine

Answer 16

False - they are at the same level

Question 17

What side is the facial ridge located on a primary maxillary canine?

Answer 17

slightly on the distal half

Question 18

The root length is ______ longer than the crown on a primary maxillary canine

Answer 18

2x

Question 19

Where does the root curve on a primary maxillary canine?

Answer 19

towards the distal

Question 20

Where does the crown taper towards on a primary maxillary first molar?

Answer 20

occlusal

Question 21

Which cusp is taller and more pointed on a primary maxillary first molar: mesiolingual or mesiofacial?

Answer 21

mesiolingual

Question 22

T/F you can see a lingually positioned mesial marginal ridge groove on a primary maxillary first molar from a mesial view?

Answer 22

True

Question 23

Is the facial cervical ridge on a primary maxillary first molar convex or concave?

Answer 23

convex

Question 24

Where is the cervical line curvature on a primary maxillary first molar?

Answer 24

occlusal curvature on the facial half of the crown

Question 25

Where is the proximal contact located on a primary maxillary first molar?

Answer 25

faciolingual center of the tooth

Question 26

How many roots can be seen on mesial view of a primary maxillary first molar?

Answer 26

2; the mesiofacial root is super-imposed over the distofacial root

Question 27

The ________ inclines out beyond the lingual confines of the crown and curves ________ in the ________ one-third on a primary maxillary first molar

Answer 27

The lingual root inclines out beyond the lingual confines of the crown and curves facially in the apical one third

Question 28

Where is the bifurcation between the mesiofacial and lingual roots on a primary maxillary first molar?

Answer 28

at the cervical line

Question 29

What are the 5 cusps on a primary second molar; arranged largest to smallest?

Answer 29

1. mesiolingual 2. mesiofcial 3. distofaical 4. distolingual 5. 5th Cusp of Carabelli

Question 30

From an occlusal view, what is the crown shape of a primary maxillary second molar?

Answer 30

somewhat rhomboidal - shows distal crown convergence

Question 31

Which tooth has a larger oblique ridge: primary maxillary second molar or primary maxillary first molar?

Answer 31

primary maxillary second molar

Question 32

On a primary maxillary second molar there is a distinct _________ ridge involving the _________ ridges of the _________ positioned cusps

Answer 32

There is a distinct transverse ridge involving the triangular ridges of the mesially positioned cusps

Question 33

What are the major fossa of a primary maxillary second molar?

Answer 33

central and distal

Question 34

What are the minor fossa of a primary maxillary second molar?

Answer 34

mesial triangular | distal triangular

Question 35

On a primary maxillary second molar, what is the distal oblique groove called when graveling on the lingual surface?

Answer 35

lingual developmental groove

Question 36

On a primary maxillary second molar the __________ groove of the __________ ridge cross the oblique ridge and connects the ________ pit with the _______ pit.

Answer 36

The transverse groove of the oblique ridge crosses the oblique ridge and connects the central pit with the distal pit

Question 37

How many cusps are visible from a distal view of the primary mandibular first molar?

Answer 37

4

Question 38

How many roots are visible from a distal view of the primary mandibular first molar?

Answer 38

2

Question 39

Where does the distal root of a primary mandibular first molar converge towards?

Answer 39

apex

Question 40

What surface has a developmental root depression on a primary mandibular first molar?

Answer 40

distal

Question 41

Where to maxillary lateral inciors ectopically erupt towards?

Answer 41

lingual side

Question 42

Where to maxillary canines ectopically erupt towards?

Answer 42

facial side

Question 43

What teeth most commonly exhibit transposition?

Answer 43

maxillary canines

Question 44

What is it called when a tooth is located in a different position from where it is supposed to be?

Answer 44

transposition

Question 45

What is ectopic eruption?

Answer 45

when a tooth erupts or emerges in the wrong position within the arch

Question 46

What is the most commonly rotated tooth?

Answer 46

maxillary second premolars (followed by maxillary incisors and maxillary first premolars)

Question 47

What type of teeth exhibit dens-in-dente (dens invaginatus)?

Answer 47

permanent teeth

Question 48

What occurs in dens-in-dente?

Answer 48

1. outer enamel surface is folded inward | 2. tissue is wrapped

Question 49

What are the two types of dens invaginatus?

Answer 49

coronal and radicular

Question 50

Dens invaginatus most likely occurs because of the what structure infolding during development?

Answer 50

dental papilla

Question 51

What is the most common tooth to display dens-in-dente?

Answer 51

permanent maxillary lateral incisor

Question 52

What is dentinogenesis imperfecta?

Answer 52

discoloring or translucent appearance of primary or permanent teeth

Question 53

Radiographically, patients with dentinogenesis imperfecta lack what tooth structures?

Answer 53

pulp chambers and root canal

Question 54

What is the shape of the crown outline on a permanent maxillary central incisor?

Answer 54

trapezoidal, shorter at cervix

Question 55

On a permanent maxillary central incisor, is the crown widths at contact areas greater or less than at cervix

Answer 55

crown width at contact areas are greater than at cervix

Question 56

What are the following measurements on a permanent maxillary central incisor? 1. cervicoincisal length 2. mesiodistal width 3. faciolingual depth

Answer 56

1. cervicoincisal length: 10.5 mm 2. mesiodistal width: 8.5 mm 3. faciolingual depth: 7.0 mm

Question 57

What are the lingual fossa boundaries on a permanent maxillary central incisor?

Answer 57

linguo-incisal ridge mesial and distal marginal ridges cingulum

Question 58

What is the shape of the lingual fossa on a permanent maxillary central incisor?

Answer 58

trapezoidal

Question 59

On the lingual aspect of a permanent maxillary central incisor, how is the cervical outline positioned in comparison to the facial aspect?

Answer 59

apically positioned, away from the incisal

Question 60

What is described as wide, shallow, and dish-shaped in depression on the incisal 1/2 of a permanent maxillary central incisor?

Answer 60

lingual fossa

Question 61

Where is the cingulum located on a permanent maxillary central incisor?

Answer 61

cervical 1/2 of the crown

Question 62

The cingulum of a permanent maxillary central incisor has 2 ridges that impinge where?

Answer 62

lingual fossa at the middle third

Question 63

Where is the greatest curvature of the cingulum on a permanent maxillary central incisor?

Answer 63

distal to the mesiodistal long axis bisector of the crown

Question 64

Describe the lingual fossa on a permanent maxillary lateral incisor

Answer 64

deep, triangular, cup-shaped

Question 65

Where is the lingual fossa located on a permanent maxillary lateral incisor?

Answer 65

incisal 2/3 of the lingual surface of hte crown

Question 66

What are the lingual fossa boundaries on a permanent maxillary lateral incisor?

Answer 66

linguo-incisal ridge mesial and distal marginal ridges cingulum

Question 67

Where is the cingulum on a permanent maxillary lateral incisor limited to?

Answer 67

cervical 1/3 of the crown and the mesial and distal marginal ridges

Question 68

Which is larger: permanent maxillary central or lateral incisor?

Answer 68

central incisor

Question 69

Which is more angular: permanent maxillary central or lateral incisor?

Answer 69

central incisor

Question 70

Which tooth as a curved root pointed towards the distal: permanent maxillary central or lateral incisor?

Answer 70

lateral incisor

Question 71

Which tooth a convex incisal third of the facial surface: permanent maxillary central or lateral incisor?

Answer 71

lateral incisor

Question 72

What is one of the most variable permanent teeth?

Answer 72

permanent maxillary lateral incisor

Question 73

The crests of the cingulum on the permanent maxillary incisors is off-set towards what side?

Answer 73

distal

Question 74

What are the shapes of the lingual fossa on a permanent maxillary central and lateral incisor?

Answer 74

central: trapezoidal lateral: triangular

Question 75

From an incisial view where are the contact areas on permanent maxillary central and lateral incisors?

Answer 75

faciolingually

Question 76

From a proximal view, where is the incisial edge centered over on both permanent maxillary central and lateral incisors?

Answer 76

incisial edge is centered over the crest of curvature of te CEJ and the main body of their respective roots

Question 77

From the lingual view, does a permanent maxillary central or lingual incisor have fissured lingual pit?

Answer 77

lateral incisor

Question 78

What is the crown shape of a permanent mandibular canine?

Answer 78

diamond

Question 79

Which is longer on a permanent mandibular canine: faciolingual or mesiodistal dimension?

Answer 79

faciolingual measurement

Question 80

Which side of the crown on a permanent mandibular canine is bulkier: facial or lingual?

Answer 80

facial is bulkier than lingual (tapers towards the lingual)

Question 81

Which side of the crown on a permanent mandibular canine is bulkier: mesial or distal?

Answer 81

mesial is larger than distal