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D1 Fall - Morphology > Morph Final Anki 2/2 > Flashcards

Morph Final Anki 2/2 Flashcards

1
Q

Which of the following premolars most typically have three rather than two cusps?

A. maxillary first premolar
B. maxillary second premolar
C. mandibular first premolar
D. mandibular second premolar

A

D. mandibular second premolar

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2
Q

After eruption, the maxillary first molar root development is completed by

A. 9-10 years old
B. 2-3 years old
C. 15 years old
D. 6-7 years old

A

A. 9-10 years old

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3
Q

The fifth or accessory cusp of the maxillary first molar is called

A. distal cusp
B. mesial-lingual cusp
C. the cusp of Carabelli
D. the cusp of Carvellini

A

C. the cusp of Carabelli

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4
Q

Which cusps of the maxillary molars become progressively smaller starting with the first molar?

A. distal lingual cusp
B. distobuccal cusp
C. mesiolingual cusp
D. mesiobuccal cusp

A

A. distal lingual cusp

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5
Q

The mesiolingual cusp of a maxillary first molar is separated from the distolingual cusp by

A. the distal developmental groove
B. the distolingual developmental groove
C. the central developmental groove
D. the lingual developmental groove

A

D. the lingual developmental groove

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6
Q

Which root of the maxillary first molar has two canals in a large percentage of patients?

A. lingual root
B. mesiobuccal root
D. distobuccal root
D. distal root

A

B. mesiobuccal root

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7
Q

The morphology of the mandibular lateral incisor when compared to the mandibular central incisor is

A. identical but larger
B. almost identical but smaller
C. almost identical but larger
D. the same

A

C. almost identical but larger

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8
Q

The facial surface of the maxillary canine is bounded by ___ borders.

A. 3
B. 4
C. 5
D. 6

A

C. 5

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9
Q

Which of the following teeth usually have two roots which may be fused?

A. maxillary first premolar
B. mandibular first premolar
C. maxillary second premolar
D. mandibular second premolar

A

A. maxillary first premolar

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10
Q

The permanent mandibular second molar differs from the permanent mandibular first molar in number of

A. cusps
B. roots
C. lingual grooves
D. marginal ridges

A

A. cusps

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11
Q

There are how many developmental lobes of a permanent mandibular molar?

A. 4: 2 buccal, 2 lingual
B. 5: 3 buccal, 2 lingual
C. 3: 2 buccal, 1 lingual
D. 5 in mandibular first molar, 4 in mandibular second molar

A

D. 5 in mandibular first molar, 4 in mandibular second molar

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12
Q

The premolar with the occlusal groove pattern that may simulate the letter “Y” is

A. maxillary first
B. mandibular first
C. maxillary second
D. mandibular second

A

D. mandibular second

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13
Q

The anterior tooth most likely to have a bifurcated root is the permanent

A. maxillary canine
B. mandibular canine
C. maxillary central incisor
D. mandibular central incisor

A

B. mandibular canine

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14
Q

The mandibular tooth that may have four root canals is

A. mandibular second premolar
B. mandibular first molar
C. mandibular second molar
D. mandibular third molar

A

B. mandibular first molar

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15
Q

The mandibular molar root which usually has one canal, but may have two, is

A. the mesial root of a mandibular first molar
B. the distal root of a mandibular first molar
C. the mesial root of a mandibular second molar
D. the distal root of a mandibular second molar

A

B. the distal root of a mandibular first molar

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16
Q

When in its proper position relative to the plane of occlusion, the crown of a mandibular second molar inclines

A. distally and facially
B. mesially and facially
C. mesially and lingually
D. distally and lingually

A

C. mesially and lingually

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17
Q

Which of the following is correct?

A. In all anterior teeth, the F embrasure space is larger than the L e.s.
B. In all anterior teeth, the F embrasure space is the same as the L e.s.
C. In all anterior teeth, the F embrasure space is smaller than the L e.s.

A

B. In all anterior teeth, the F embrasure space is the same as the L e.s.

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18
Q

Considering the nature and position of Mandibular incisor interproximal contacts, which of the following statements are true?

A. the gingival embrasure is larger than the incisal embrasure
B. the gingival embrasure is the same size as the incisal embrasure
C. the gingival embrasure is smaller than the incical embrasure

A

A. the gingival embrasure is larger than the incisal embrasure

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19
Q

Which of the following pre molars may* have a L developmental groove?

A. Maxillary 1st (has Mesial Marginal Ridge Dev. Groove)
B. Maxillary 2nd (has a short central Dev. Groove on occlusal surface)
C. Mandibular 1st (has Mesiolingual Dev. Groove)
D. Mandibular 2nd

*dependent on the number of

A

D. Mandibular 2nd

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20
Q

Which of the following statements is not correct?

A. The maxillary 1st Premolar has a ML developmental groove
B. Mandibular 1st Premolar has a ML developmental groove
C. Mandibular 2nd Premolar commonly has a lingual groove
D. The maxillary 2nd Premolar has a short central developmental groove

A

A. The maxillary 1st Premolar has a ML developmental groove

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21
Q

Which of the following is not correct?

A. Mandibular 1st Premolar most commonly has three pulp horns.
B. Maxillary 1st Premolar usually develops from 4 lobes
C. The Premolar most likely to have a central pit is the Mandibular 2nd.
D. Maxillary 1st Premolar has a pronounce mesial concavity extending from the crown onto the root
E. The premolar most likely to have 3 roots is the maxillary 1st

A

A. Mandibular 1st Premolar most commonly has three pulp horns.

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22
Q

When viewed from the Mesial, the geometric form of the crown of the maxillary 1st premolar is classically described as:

A. rectangle
B. rhomboid
C. trapezoid
D. square
E. ovoid

A

C. trapezoid

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23
Q

In which of the following cusps is the Mesial slope (AKA: mesial cusp arm/ mesial cusp ridge) longer than the Distal slope?

A. Buccal cusp of the permanent maxillary 1st Molar
B. Cusp of the permanent maxillary canine
C. Buccal cusp of the permanent maxillary 1st Premolar

A

C. Buccal cusp of the permanent maxillary 1st Premolar

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24
Q

Which statement is false? In comparing the manibular canine with the maxillary canine, the maxillary canine:

A. Has shorter crown.
B. More pronounced cingulum
C. Has a more pronounce developmental depression on the Mesial surface of the root
D. Has a cusp tip more nearly centered over the root when viewed from the Facial.

A

C. Has a more pronounce developmental depression on the Mesial surface of the root

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25
Q

Which of the following are correct?

A. A line angle is where three or more surfaces of a tooth meet
B. The geometric form of the permanent mandibular canine when viewed Facially is rhomboidal.
C. When viewed from the mesial, the geometric form of the permanent mandibular 1st premolar is best described as rhomboidal in nature.

A

C. When viewed from the mesial, the geometric form of the permanent mandibular 1st premolar is best described as rhomboidal in nature.

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26
Q

If a maxillary 1st molar has a fourth pulp canal, it is located in which of the following roots:

A. Mesiofacial (or MB)
B. Distofacial (or DB)
C. Palatal (or lingual)

A

A. Mesiofacial (or MB)

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27
Q

Which of the following represents the general crown form of the canine from the Facial?

A. Hexagon
B. Triangle
C. Rhomboidal
D. Trapezoidal
E. Diamond

A

D. Trapezoidal

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28
Q

On the crown of the maxillary canine, the height of contour is normally located in the cervical third of which of the following surfaces?

A. Labial
B. Lingual
C. Both labial and lingual
D. Neither labial nor lingual

A

C. Both labial and lingual

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29
Q

Which of the following surfaces of a tooth is always next to an adjacent tooth?

A. Distal
B. Facial
C. Palatal
D. Occlusal
E. Proximal

A

E. Proximal

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30
Q

Which of the following teeth exhibits the most deviation in crown?

A. maxillary central incisor
B. maxillary lateral incisor
C. mandibular lateral incisor
D. maxillary canine
E. mandibular canine

A

B. maxillary lateral incisor

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31
Q

Rank the roots of the maxillary 1st molar in order from largest to smallest.

A. MB > DB > Palatal
B. Palatal > MB > DB
C. DB > Palatal > MB

A

B. Palatal > MB > DB

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32
Q

Between which of the following teeth in the primary dentition is mandibular primate space usually found?

A. Between Centrals
B. Canine & 1st Molar
C. Between 1st and 2nd molars
D. Between lateral incisor and canine

A

B. Canine & 1st Molar

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33
Q

Which is most likely has bifurcated root?

A. Mandibular canine
B. Maxillary canine
C. Mandibular lateral incisors

A

A. Mandibular canine

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34
Q

On which of the following surfaces of secondary dentition do you see pit and fissure caries?

A. Facial of Maxillary 1st Molar
B. Lingual of maxillary 1st Molar
C. Facial of Mandibular 1st Premolar
D. Lingual of mandibular 1st premolar
E. Proximal surfaces of mandibular incisors

A

B. Lingual of maxillary 1 Molar

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35
Q

Which of the following characteristics is common to maxillary 1st and 2nd premolars?

A. The lingual cusp tip is offset to the mesial.
B. Facial and lingual cusps are equal in size and prominence
C. Mesial root concavity extends into cervical 1/3 of crown

A

A. The lingual cusp tip is offset to the mesial.

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36
Q

In a molar, where do root canals usually join the pulp chamber?

A. At the level of furcation
B. At varying levels, depending on age
C. With in middle 1/3 of crown
D. Within cervical 1/3 of the crown
E. Apical to the CEJ

A

E. Apical to the CEJ

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37
Q

Which primary molar has a transverse ridge, an oblique ridge, and distiolingual groove?

A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second

A

B. Maxillary second

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38
Q

Which tooth is represented by the drawing to the right:

A. Mesial view of the permanent mandibular 1st Molar
B. Mesial view of the permanent mandibular 2nd Molar
C. Mesial view of the permanent mandibular 1st Premolar
D. Distal view of the permanent mandibular 1st Molar
E. Distal view of the permanent mandibular 2nd Molar

A

D. Distal view of the permanent mandibular 1st Molar

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39
Q

In which premolar is the mesial marginal ridge at a lower level than the distal marginal ridge?

A

Mandibular 1st premolar

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40
Q

Because of the presence of a fissured groove, cavity preparation most frequently need to be extended from the occlusal surface to the:

A. Facial surface of maxillary molars
B. Lingual surface of maxillary molars
C. Lingual surface of the mandibular molars
D. Lingual surface of mandibular first premolars

A

B. Lingual surface of maxillary molars

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41
Q

When viewed from the mesial aspect, the position of the buccal tip of the mandibular first premolar is:

A. Centered over the midline of the tooth
B. Buccal to the midline of the tooth
C. Lingual to the midline of the tooth
D. Buccal to the buccal outline of the tooth

A

A. Centered over the midline of the tooth

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42
Q

Which of the following teeth has a root trunk that is 1/2 to 2/3s the length of the root?

A. Maxillary first premolar
B. Mandibular first premolar
C. Mandibular first molar
D. Maxillary first molar
E. Maxillary second premolar

A

A. Maxillary first premolar

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43
Q

Compared with its permanent successors, the primary maxillary central incisors are distinguished by:

A. more rounded incisal edges
B. more pronounced marginal ridges
C. a wider mesial/distal diameter than cervicoincisal length

A

C. a wider mesial/distal diameter than cervicoincisal length

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44
Q

Which of the following premolars most frequently has one pulp horn:

A

mandibular 1st premolar

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45
Q

Which furcation in the maxillary first molar is farthest from the CEJ?

A

farthest: distal
closest: mesial

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46
Q

Considering the nature and position of the mand incisors interproximal contacts, which statement is true?

A. Gingival embrasure is larger than incisal embrasure
B. Facial and lingual embrasures are the same on anterior teeth.
C. Both A and B

A

C. Both A and B

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47
Q

Which premolar has a lingual developmental groove?

A

Mandibular 2nd premolar (for the Y type cusps)

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48
Q

When viewed from the mesial the geometric form of the crown of the max 1st premolar is classically described as

A

1st + 2nd Max: Trapezoidal from proximal
1st + 2nd Mand: Rhomboidal

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49
Q

Compared to mand canines, the max canines

A. shorter crown height
B. more pronounced cingulum
C. cusp tip more centered than mandibular
D. All of the above

A

D. All of the above

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50
Q

If a max 1st molar has a 4th pulp canal it is located in the

A

mesiofacial root

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51
Q

On maxillary canine crown, height of contour is in the cervical 1/3 on which of the following surfaces:

A. labial
B. lingual
C. both
D. neither

A

C. both

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52
Q

Rank the roots of the maxillary 1st molar in order from largest to smallest

A

palatal > mesiobuccal > distobuccal

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53
Q

Which tooth is most likely to have a bifurcated root?

A

mandibular canine

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54
Q

Which tooth is least likely to have a bifurcated root?

A

maxillary canine

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55
Q

Compared with its permanent successors, the primary maxillary central incisors

A. more rounded incisal edges
B. more pronounced marginal ridges
C. a wider mesial/distal diameter that cervicoincisal length

A

C. a wider mesial/distal diameter that cervicoincisal length

In this case, both A and C were correct but C was “the most correct answer

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56
Q

Which premolar has a crescent shaped developmental groove?

A

mandibular 2nd

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57
Q

Which of the following are correct?

A. in all anterior teeth the facial embrasure is larger that the lingual embrasure
B. in all anterior teeth facial embrasure is the same size as the lingual embrasure
C. in all anterior teeth facial embrasure is smaller than the lingual embrasure

A

B. in all anterior teeth facial embrasure is the same size as the lingual embrasure

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58
Q

Which of the following premolars may have a lingual developmental groove?

A. max 1st
B. max 2nd
C. mand 1st
D. mand 2nd

A

D. mand 2nd

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59
Q

Which is not correct?

A. mand 1st premolar most commonly has 3 pulp horns
B. max 1st premolar develops from 4 lobes
C. the premolar most likely to have a central pit is the mand 2nd
D. max 1st premolar ahs a pronounced mesial concavity
E. premolar most likely to have 3 roots is the maxillary 1st

A

A. mand 1st premolar most commonly has 3 pulp horns

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60
Q

In which tooth is the mesial cusp arm longer than the distal?

A

maxillary 1st premolar and deciduous maxillary canine

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61
Q

Which is correct?

A. a line angle is where three or more surfaces meet
B. the geometric form of the perm mand canine when viewed from the facial is triangular
C. point angles are present on posterior teeth but not anterior
D. permanant mand 1st premolar is rhomboidal

A

D. permanant mand 1st premolar is rhomboidal

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62
Q

Which represents the general crown form of the canine as viewed from the Occlusal?

A. hexagon
B. triangular
C. rhomboidal
D. ovoid
E. diamond shaped

A

D. ovoid

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63
Q

Which exhibits the most diversity in crown morphology?

A

maxillary lateral incisor

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64
Q

Between which is the primate space?

A. central incisors
B. central and lateral incisors
C. lateral incisors and canine (maxillary)
D. canine and 1st molar (mandibular)
E. 1st and 2nd molar

A

C. lateral incisors and canine (maxillary)
D. canine and 1st molar (mandibular)

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65
Q

Which of the following surfaces of perminant teeth are pit and fissure carries most likely to occur?

A. F of max 1st molar
B. L of max 1st molar
C. F of mand 1st premolar
D. L of mand 1st premolar
E. Proximal of mand I

A

B. L of max 1st molar – because of the lingual groove, at its bottom

Also – buccal of mandibular molars – buccal grooves are susceptible to pit ‘n fissure caries

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66
Q

Which premolar has only 1 pulp horn?

A

mandibular 1st

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67
Q

How many lobes does the max 2nd molar develop from?

A

5

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68
Q

Which premolar is MMR lower than DMR?

A. mand 1st
B. mand 2nd
C. max 1st
D. max 2nd

A

A. mand 1st

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69
Q

Which arch are the 2nd premolars larger than the 1st?

A. maxillary
B. mandibular

A

B. mandibular

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70
Q

Which tooth has a lower mesial marginal ridge?

A

Mandibular 1st premolar

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71
Q

True or False: Root depressions are larger on distal than mesial generally.

A

True

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72
Q

In general, which teeth are the most commonly congenitally missing?

A

3rd molars

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73
Q

Which are the most commonly congenitally missing ANTERIOR teeth?

A

maxillary lateral incisors

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74
Q

What are the most likely anterior teeth to have 2 pulp canals?

A

mandibular canine

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75
Q

What are the least ikely anterior teeth to have 2 pulp canals?

A

maxillary canine

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76
Q

What is the largest cusp of the maxillary 1st molar?

A

ML (with its cusp of Carabelli)

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77
Q

What is the largest cusp of the mandibular 1st molar?

A

MB

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78
Q

In a longitudinal section on a premolar tooth, the enamel is thickest in the

A. cervical third
B. middle third
C. occlusal third
D. junction of the middle and occlusal third

A

C. occlusal third

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79
Q

The mesiodistal (M-D) measurement of the crown is greater than the faciolingual (F-L) measurement on which of the following teeth

A. Maxillary molars
B. Maxillary premolars
C. Mandibular incisors
D. Mandibular molars

A

D. Mandibular molars

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80
Q

From a facial view, the mesial and distal contact area of the mandibular central Incisors are located in

A. both are located in the incisal 1/3
B. both are located in the middle 1/3
C. the incisal 1/3 on the mesial and the middle 1/3 on the distal
D. the incisal 1/3 on the mesial and junction of the incisal and middle 1/3’s on the distal

A

A. both are located in the incisal 1/3

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81
Q

Identify the anterior tooth that most frequently exhibits a bifurcated root and Identify the two roots

A. maxillary canine-mesial and distal
B. maxillary canine-facial and lingual
C. mandibular central incisor-facial and lingual
D. mandibular canine-mesial and distal
E. mandibular canine-facial and lingual

A

E. mandibular canine-facial and lingual

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82
Q

Which furcation of the maxillary first molar is closest to the cervical line?

A. Mesial
B. Distal
C. Facial

A

A. Mesial

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83
Q

Which of the following muscles is not an elevator of the mandible?

A. Medial pterygoid
B. Masseter
C. Lateral pterygoid
D. Temporalis

A

C. Lateral pterygoid

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84
Q

Which of the following muscles is not an elevator of the mandible?

A. Medial pterygoid
B. Masseter
C. Lateral pterygoid
D. Temporalis

A

C. Lateral pterygoid

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85
Q

Which of the following cusps is not a member of the primary molar triangle or trigon found in maxillary molars?

A. Mesiofacial
B. Distofacial
C. Mesiolingual
D. Distolingual

A

D. Distolingual

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86
Q

Which of the following statements is correct in relation to the maxillary incisors?

A. the lingual embrasure is larger than the facial embrasure
B. the facial embrasure is larger than the lingual embrasure
C. the incisal embrasure is larger than the cervical embrasure
D. the lingual and facial embrasures are equal in size

A

D. the lingual and facial embrasures are equal in size

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87
Q

In cervical cross section, the root of the maxillary central incisor is described as

A. triangular
B. conical
C. ovoid
D. rhomboidal
E. broader mesiodistally on the lingual than on the facial

A

A. triangular

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88
Q

Which of the following is the normal eruption age (years) of the permanent maxillary lateral incisors

A. 8-9 years
B. 7-8 years
C. 11-13 years
D. 11 months

A

A. 8-9 years

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89
Q

When viewed from the facial, the mesial contact (height of contour) of a permanent Maxillary canine is located in (at)

A. the incisal 1/3
B. the junction of the middle and incisal thirds
C. the middle third
D. the junction of the middle and cervical thirds

A

B. the junction of the middle and incisal thirds

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90
Q

In which of the following is the mesial cusp arm longer than the distal cusp arm?

A. Permanent maxillary canine
B. Permanent mandibular canine
C. Facial cusp of the permanent maxillary second premolar
D. Facial cusp of the permanent maxillary first premolar
E. Facial cusp of the permanent mandibular first premolar

A

D. Facial cusp of the permanent maxillary first premolar

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91
Q

The cusp of a canine develops from the

A. Middle labial lobe
B. Mesial-labial lobe
C. Distal-labial lobe
D. Lingual lobe

A

A. Middle labial lobe

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92
Q

In a tooth that is partially erupted, the clinical crown height is ____________ than the anatomical crown height.

A. Longer
B. Shorter
C. Equal to

A

B. Shorter

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93
Q

The first sign of tooth development is seen in the embryo at

A. 6-7 days
B. 6-7 weeks
C. 6-7 months
D. 13-16 weeks

A

B. 6-7 weeks

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94
Q

First evidence of calcification of the permanent mandibular second molar occurs at

A. 3-4 months
B. 10-12 months
C. 1 1/2-2 1/2 years
D. 2 1/2-3 years
E. Birth

A

D. 2 1/2-3 years

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95
Q

The presence of interproximal contacts is important

A. To prevent food impaction
B. To avoid mesial drift
C. Dissipate forces throughout the arch (good stress distribution)
D. All of the above

A

D. All of the above

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96
Q

Which CEJ is the most curved in the permanent dentition?

A. Mesial of mandibular central incisor
B. Distal of mandibular central incisor
C. Mesial of maxillary central incisor
D. Distal of maxillary central incisor
E. Facial of maxillary central incisor

A

C. Mesial of maxillary central incisor

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97
Q

The primary maxillary first molar is exfoliated at approximately

A. 10-11 years
B. 14 years
C. 6-7 years
D. 1 1/2-2 1/2 years

A

A. 10-11 years

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98
Q

Which deciduous tooth when viewed from the facial has a mesial crown height that is twice the distal crown height?

A. Deciduous mandibular first molar
B. Deciduous mandibular second molar
C. Deciduous maxillary second molar
D. Deciduous maxillary second molar
E. Deciduous maxillary canine

A

A. Deciduous mandibular first molar

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99
Q

The mesiodistal diameter of the crowns of all permanent teeth is narrower on the Lingual aspect than on the facial aspect of the crown, except for one tooth. That Tooth is

A. Maxillary first premolar
B. Mandibular second premolar
C. Permanent maxillary first molar
D. Mandibular first premolar
E. Permanent mandibular first molar

A

C. Permanent maxillary first molar

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100
Q

The predominant sequence of eruption of deciduous teeth is

A. Central incisor, lateral incisor, canine, first molar, second molar
B. Central incisor, lateral incisor, canine, second molar, first molar
C. First molar, central incisor, lateral incisor, canine, second molar
D. First molar, central incisor, lateral incisor, second molar, canine
E. Central incisor, lateral incisor, first molar, canine, second molar

A

E. Central incisor, lateral incisor, first molar, canine, second molar

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101
Q

Which premolar has a mesial marginal ridge at a lower level than the distal marginal ridge?

A. Maxillary first premolar
B. Maxillary second premolar
C. Mandibular first premolar
D. Mandibular second premolar

A

C. Mandibular first premolar

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102
Q

The oblique ridge of the maxillary first molar is formed by union of

A. The triangular ridge of the distobuccal cusp and distal cusp ridge of the
mesiolingual cusp
B. The triangular ridge of the distobuccal cusp and the triangular ridge of mesiolingual cusp
C. The mesial cusp ridge of the distobuccal cusp and the triangular ridge the mesiolingual cusp
D. The distal cusp arm of the mesiobuccal cusp and the triangular ridge of the distolingual cusp

A

A. The triangular ridge of the distobuccal cusp and distal cusp ridge of the
mesiolingual cusp

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103
Q

In the sequence of eruption of the deciduous dentition which of the following is correct?

A. Maxillary central incisor erupts before mandibular central incisor
B. Mandibular lateral incisor erupts before maxillary lateral incisor
C. Maxillary first molar erupts before mandibular first molar
D. Mandibular canine erupts before maxillary canine

A

C. Maxillary first molar erupts before mandibular first molar

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104
Q

Which premolar has an uninterrupted transverse ridge?

A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second

A

C. Mandibular first

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105
Q

Which of the following teeth has a root trunk that is 1⁄2 to 2/3 it’s root length?

A. Permanent mandibular first molar
B. Permanent maxillary first molar
C. Maxillary first premolar
D. Mandibular first premolar

A

C. Maxillary first premolar

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106
Q

At the time of eruption of a permanent tooth, the root of the tooth is

A. 1/3 developed
B. 1/2 developed
C. 2/3 developed
D. Undeveloped

A

B. 1/2 developed

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107
Q

The roots of primary mandibular right first molar are flared to allow space for the development of

A. #28
B. #29
C. #30
D. #20
E. #21

108
Q

In comparing the mandibular canine with the maxillary canine, the mandibular canine

A. Has a more prominent bulkier cingulum
B. Has a more prominent lingual ridge
C. Well defined lingual pits
D. More accentuated marginal ridges
E. Has an incisal ridge that is 1/5 clinical crown height

A

E. Has an incisal ridge that is 1/5 clinical crown height

109
Q

Which permanent tooth as a mesial marginal ridge developmental groove?

A. Maxillary first premolar
B. Maxillary second premolar
C. Mandibular first premolar
D. Mandibular second premolar
E. Maxillary first molar

A

A. Maxillary first premolar

110
Q

The first succedaneous tooth to erupt is

A. Permanent mandibular first molar
B. Permanent maxillary first molar
C. Permanent mandibular central incisor
D. Permanent mandibular lateral incisor
E. Permanent maxillary central incisor

A

C. Permanent mandibular central incisor

111
Q

From a facial view, the distal contact of the permanent mandibular canine is located in (at)

A. Incisal 1/3
B. Middle 1/3
C. Junction of incisal and middle 1/3’s
D. Junction of incisal and cervical 1/3’s

A

B. Middle 1/3

112
Q

When viewed from the mesial, the crown of the mandibular first premolar is classically described as

A. Trapezoidal
B. Rhomboidal
C. Square
D. Rectangular

A

B. Rhomboidal

113
Q

Which tooth has a mesiolingual developmental groove?

A. Permanent mandibular first molar
B. Permanent maxillary first molar
C. Mandibular first premolar
D. Mandibular second premolar
E. Maxillary first premolar

A

C. Mandibular first premolar

114
Q

The mesiolingual (developmental) groove

A. Separates the mesial marginal ridge from the lingual cusp
B. Separates the mesiolingual cusp from the distolingual cusp
C. Separates the mesiolingual cusp from the mesial cusp
D. Separates the mesial cusp from the lingual cusp

A

A. Separates the mesial marginal ridge from the lingual cusp

115
Q

Which is the only incisor that has a crown that is wider mesiodistally than long incisogingivally?

A. Permanent mandibular central incisor
B. Permanent maxillary central incisor
C. Primary maxillary central incisor
D. Primary mandibular central incisor
E. Primary maxillary lateral incisor

A

B. Permanent maxillary central incisor

116
Q

The permanent maxillary first molar

A. Two roots: the mesial root and the distal root
B. Two roots: the buccal root and the lingual root
C. Three roots: the mesiolingual, the mesiofacial and the distal
D. Three roots: the mesiofacial, the distofacial and the lingual

A

D. Three roots: the mesiofacial, the distofacial and the lingual

117
Q

Which of the following statements is true with respect to the major differences between primary and permanent teeth?

A. Primary teeth have larger pulp chambers with prominent pulp horns
B. Primary teeth have longer root trunks
C. The roots of the posterior primary teeth are closer together and often fused
D. Primary teeth have thicker dentin

A

A. Primary teeth have larger pulp chambers with prominent pulp horns

118
Q

The average length of the maxillary central incisor (crown and root) is

A. 24 mm
B. 22 mm
C. 27 mm
D. 18 mm

119
Q

The erupted dentition of a normally developed 7 year old child (7 years 0 days) consists of

A. 4 permanent teeth and 20 primary teeth
B. 6 permanent teeth and 20 primary teeth
C. 6 permanent teeth and 18 primary teeth
D. 10 permanent teeth and 10 primary teeth

A

C. 6 permanent teeth and 18 primary teeth

120
Q

The size of the pulp chamber of a tooth

A. Is the same size throughout life
B. Increases with age
C. Is larger in males
D. May be affected by caries, trauma and restorative dental treatment

A

D. May be affected by caries, trauma and restorative dental treatment

121
Q

The distal height of contour (facial view) of the permanent maxillary central incisor is located

A. Incisal 1/3
B. Middle 1/3
C. Junction of incisal and middle 1/3’s
D. Junction of incisal and cervical 1/3’s

A

C. Junction of incisal and middle 1/3’s

122
Q

How soon after the eruption of a permanent tooth is the apex fully formed?

A. Immediately
B. 3 months
C. 2-3 years
D. 5-6 years

A

C. 2-3 years

123
Q

In which of the following canines is the mesial slope of the cusp (mesial cusp arm, mesial cusp ridge) longer than the distal slope of the cusp?

A. Permanent maxillary canine
B. Permanent mandibular canine
C. Primary maxillary canine
D. Primary mandibular canine

A

C. Primary maxillary canine

124
Q

When viewed from the occlusal aspect the outline of the permanent maxillary Second molar has two acute and two obtuse angles. The acute angles are

A. Mesiolingual and distofacial
B. Mesiofacial and distolingual
C. Mesiolingual and mesiofacial
D. Distolingual and distofacial

A

B. Mesiofacial and distolingual

125
Q

The primary maxillary second molars resemble which permanent tooth

A. Permanent maxillary first molars
B. Maxillary premolars
C. Permanent mandibular first molars
D. Mandibular premolars

A

A. Permanent maxillary first molars

126
Q

The primary mandibular canine erupts at

A. 20 months
B. 16 months
C. 27 months
D. 9-10 years

A

A. 20 months

127
Q

Which premolar is most likely to have only one pulp horn?

A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second

A

C. Mandibular first

128
Q

Which of the following teeth have a cusp of Carabelli
1. Permanent maxillary first molar
2. Permanent maxillary second molar
3. Permanent mandibular first molar
4. Primary mandibular first molar
5. Primary maxillary first molar
6. Primary maxillary second molar
7.Primary mandibular second molar

A. 1,2,5 and 6 only
B. 1,3,4 and 5 only
C. 1 and 2 only
D. 1 only
E. 1 and 6 only

A

E. 1 and 6 only

129
Q

The cingulum of the maxillary central incisor is

A. Centered on the lingual aspect of the tooth
B. Slightly mesial to the center of the lingual
C. Slightly distal to the center of the lingual
D. The maxillary central does not have a cingulum

A

C. Slightly distal to the center of the lingual

130
Q

In a patient with crowding of the dental arch (ie: teeth too big for the amount of space in the arch), which of the following teeth in the mandible would you expect to be crowded/displaced out of the arch?

A. Permanent mandibular canine
B. Mandibular first premolar
C. Mandibular second premolar

A

C. Mandibular second premolar

131
Q

The transverse groove of the oblique ridge connects which of the following pits?

A. Distal and central
B. Distal and distofacial
C. Central and distofacial
D. Mesial and central
E. Lingual and central

A

A. Distal and central

132
Q

Which of the following primary molars bears the greatest resemblance to a premolar?

A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second

A

A. Maxillary first

133
Q

In a patient with crowding of the dental arch (ie: teeth too big for the amount of space in the arch), which of the following teeth in the maxilla would you most expect to be crowded/displaced out of the arch

A. Maxillary canine
B. Maxillary first premolar
C. Maxillary second premolar

A

A. Maxillary canine

134
Q

Which of the following would be of greatest value in distinguishing between a primary mandibular second molar and permanent mandibular first molar?

A. Number of roots
B. Number of cusps
C. Arrangement of grooves on the occlusal surface
D. Comparative size of the distal cusps

A

D. Comparative size of the distal cusps

135
Q

The interdental papilla is located in the

A. Facial embrasure
B. Lingual embrasure
C. Cervical embrasure
D. Occlusal embrasure

A

C. Cervical embrasure

136
Q

When in its proper position relative to the plane of occlusion, the crown of the mandibular second molar inclines

A. Mesially and facially
B. Mesially and lingually
C. Distally and facially
D. Distally and lingually
E. Lingually only

A

B. Mesially and lingually

137
Q

A lingual pit is most frequently found on

A. Maxillary central incisors
B. Maxillary lateral incisors
C. Mandibular central incisors
D. Mandibular lateral incisors

A

B. Maxillary lateral incisors

138
Q

The geometric form of the maxillary premolars when viewed from the mesial is

A. Triangular
B. Hexagonal
C. Rhomboidal
D. Trapezoidal

A

D. Trapezoidal

139
Q

What is the permanent anterior tooth that varies in form the most

A. Maxillary lateral incisor
B. Maxillary central incisor
C. Mandibular lateral incisor
D. Mandibular central incisor
E. Mandibular canine

A

A. Maxillary lateral incisor

140
Q

Which premolar is most likely to have a ‘Y’ shaped fissure pattern?

A. Maxillary first
B. Mandibular first
C. Maxillary second
D. Mandibular second

A

D. Mandibular second

141
Q

When viewing a permanent maxillary canine from the mesial aspect, one would normally expect a line bisecting the root longitudinally to pass

A. Facial to the cusp tip
B. Lingual to the cusp tip
C. Bisect the cusp tip

A

B. Lingual to the cusp tip

142
Q

When viewing a permanent mandibular canine from the mesial aspect, one would normally expect a line bisecting the root longitudinally to pass

A. Facial to the cusp tip
B. Lingual to the cusp tip
C. Bisect the cusp tip

A

A. Facial to the cusp tip

143
Q

The geometric outline of the facial and lingual surfaces of all posterior teeth is represented by which of the following geometric figures.

A. Rhomboid
B. Trapezoid
C. Ovoid

A

B. Trapezoid

144
Q

The mandibular second molar develops from how many lobes

A. One
B. Two
C. Three
D. Four

145
Q

Sequence the cusps of permanent maxillary first molar from largest to smallest:
1. Mesiofacial
2. Distofacial
3. Mesiolingual
4. Distolingual
5. Cusp of Carabelli
6. Distal cusp

A. 1,2,3,4,5
B. 1,2,3,4,6
C. 3,1,2,4,5
D. 3,1,2,4,6
E. 3,5,4,1,2

A

C. 3,1,2,4,5

146
Q

Which is the longest root in the maxillary first molar?

A. Lingual
B. Mesiobuccal
C. Distobuccal
D. Mesial
E. Distal

A

A. Lingual

147
Q

The primate space is

A. A space that is found mesial to the maxillary canine and distal to the
mandibular canine in the deciduous dentition
B. The surplus space due to the difference between the combined mesiodistal widths of the permanent premolars and canines and the deciduous molars and canines

A

A. A space that is found mesial to the maxillary canine and distal to the
mandibular canine in the deciduous dentition

148
Q

Tooth position in the arch is dictated by

A. Muscle activity of the lips, tongue and cheek
B. Amount of space in the arch for the teeth
C. Presence of interproximal contacts
D. All of the above

A

D. All of the above

149
Q

The mesiolateral curvature of the plane of occlusion is called

A. The curve of Spee
B. The curve of Wilson
C. The curve of Bennet

A

B. The curve of Wilson

150
Q

The permanent maxillary central incisors have a

A. Facial and slight distal inclination
B. Facial and mesial inclination
C. Lingual and mesial inclination
D. Lingual and distal inclination
E. Vertical – have no inclination

A

A. Facial and slight distal inclination

151
Q

The anteroposterior curvature of the occlusal plane is referred to as the curve of

A. Wilson
B. Spee
C. Frankfort
D. Alatragal

152
Q

The term ‘occlusal table’ refers to

A. The occlusal area defined by the buccal and lingual cusp ridges
B. Refers to a plane that touches the incisal edges of the anterior teeth and the cusp tips of the posterior teeth
C. Is approximately 90-100% of the total buccolingual width of the tooth

A

A. The occlusal area defined by the buccal and lingual cusp ridges

153
Q

The occlusal table forms what percentage of the total buccolingual width of the tooth

A. 10-20%
B. 20-30%
C. 50-60%
D. 90-100%

154
Q

The plane of occlusion is a

A. Midsaggital plane that bisects the dental arch
B. Plane that extends across the arch and touches the cusp and incisal edges of all the teeth
C. Convex upwards

A

B. Plane that extends across the arch and touches the cusp and incisal edges of all the teeth

155
Q

When making a left lateral movement, the prime mover of the mandible is

A. Left lateral pterygoid
B. Right lateral pterygoid
C. Right digastric
D. Left digastric
E. Left temporalis

A

B. Right lateral pterygoid

156
Q

The buccal cusps of the mandibular teeth and the lingual cusps of the maxillary teeth are

A. Supporting or stamp or functional cusps
B. Guiding or shearing or non-functional cusps

A

A. Supporting or stamp or functional cusps

157
Q

Which of the following muscles are primarily involved in elevation of the mandible
1. Masseter
2. Medial pterygoid
3. Lateral pterygoid
4. Digastric
5. Temporalis

A. 1,2,3,4 and 5
B. 1,2 and 5 only
C. 3 and 4 only
D. 1,2,4 and 5 only

A

B. 1,2 and 5 only

158
Q

Which muscle of mastication inserts into the lateral aspect of the ramus of the Mandible as far as the angle of the mandible

A. Masseter
B. Medial pterygoid
C. Lateral pterygoid
D. Temporalis

A

A. Masseter

159
Q

Which muscle of mastication has a head or part that originates from the infratemporal surface of the greater wing of the sphenoid?

A. Masseter
B. Medial pterygoid
C. Lateral pterygoid
D. Temporalis

A

C. Lateral pterygoid

160
Q

The primary function of the pulp is

A. Provide nutrition
B. Provide sensation
C. Form dentin
D. Form enamel

A

C. Form dentin

161
Q

The embrasure spaces around the posterior teeth are called

A. Occlusal, cervical, mesial and distal
B. Occlusal, cervical, facial and lingual
C. Incisal, cervical, facial and lingual
D. Incisal, occlusal, mesial and distal

A

B. Occlusal, cervical, facial and lingual

162
Q

From anterior to posterior (ie: first to third), which cusp of the maxillary cusps gets progressively smaller and may even disappear

A. Mesiolingual
B. Mesiobuccal
C. Distolingual
D. Distofacial

A

C. Distolingual

163
Q

In an ideal arrangement of teeth (Angles class I), (centric occlusion), the distobuccal cusp of the permanent mandibular first molar occludes in the

A. Central fossa of the opposing maxillary first molar
B. Distal fossa of the opposing maxillary first molar
C. On the oblique ridge
D. On the mesial marginal ridge area

A

A. Central fossa of the opposing maxillary first molar

164
Q

Calcification of the crown of the permanent mandibular first molar is usually complete by

A. Birth
B. 2 1/2 to 3 years
C. 6 months
D. Not until 6 years of age

A

B. 2 1/2 to 3 years

165
Q

From a facial view, the maxillary second molar has it’s MF root apex in line with

A. Facial groove
B. DF line angle
C. DF cusp tip
D. MF cusp tip

A

A. Facial groove

166
Q

The level of the bifurcation in the mandibular first molar occurs closest to the CEJ on which aspect of the tooth

A. Mesial
B. Distal
C. Lingual
D. Buccal

167
Q

what tooth has centered, roughly even lobes?

A

max premolars

168
Q

what tooth has a mesial marginal ridge developmental groove?

A

1st max premolar

169
Q

what preomolar has a mesial concavity and mesial root depression?

A

first max premolar

170
Q

what premolars have crowns that are not centered with the vertical line going through root?

A

mandibular premolars

171
Q

what tooth has mesiolingual groove?

A

first mandibular premolar

172
Q

what tooth has uniterrupted transverse ridge?

A

first mandibular premolar

173
Q

what tooth has a lingual developmental groove?

A

second mandibular premolar

174
Q

what perm teeth are longer faciolingually than they are mesiodistially?

A

all but maxillary central and lateral incisors

175
Q

where is the greatest cej curvature

A

max ci mesial

176
Q

first evidence of calcification of permanent maxillary first molar

177
Q

maxillary first premolar has what defining feature

A

mesial concavity / developmental depression

178
Q

all anterior teeth develop from how many lobes?

179
Q

when is mesial slope of cusp longer than distal?

A

buccal of perm max first premolar

180
Q

does the gingival papilla occupy the facial embrasure

181
Q

what tooth is most likely to develop from 5 lobes?

A

mandibular second premolar

182
Q

Anterior teeth develop from ______ lobes
Posterior teeth develop from ______ lobes or _______ lobes

183
Q

Maxillary and mandibular first molars begin to calcify at _____

A

Birth
They are the first to begin calcification

184
Q

The mandibular third molars are the ________ to begin calcifying. This happens at about _______ years of age.

A

Last teeth; 8-10

185
Q

First max premolar begins to calcify at _____ years

186
Q

Second premolar begins to calcify at ______ years

187
Q

first evidence of calcification of max central incisors

A

3-4 months

188
Q

Apex of max central incisor root is slightly _______ to long axis of tooth

189
Q

incisal angles on maxillary central incisor

A

mesial is 90°, distal is rounded

190
Q

first evidence of calcification of max lateral incisors

191
Q

maxillary lateral incisors has _____ pronounced ______ and ________ on ______ surface than central, and a __________

A

More; mesial and distal marginal ridges; lingual; deeper lingual fossa

192
Q

compare roots of maxillary central and lateral incisors

A

lateral may be longer or same size

193
Q

Calcification begins when for mand CI

A

Calcification begins 3-4 months

194
Q

tell me about dev depressions on mand c i

A

greater on distal of root than mesial

195
Q

buccal and lingual triangular ridge on which tooth

A

max first premolar

196
Q

in the Max CI, the root does what 2 things?

A

taper distally and lingually

197
Q

what shape is the root cross section of the Max CI

A

triangular

198
Q

what shape is the root cross section of the Mand CI?

199
Q

in the Mandibular Canine, the cusp tip is what to the bisecting line?

200
Q

in the mandibular Canine, the lingual cusp tip is in line with what?

A

lingual side of the root

201
Q

in the mandibular canine, the buccal cusp tip is in line with what?

A

apex of the root

202
Q

on max canines, from the facial aspect, the cusp tip is in line with what?

A

center of the root

203
Q

from the mesial aspect of the max canine, the cusp tip is how in relation to the line bisceting the root?

A

facially/buccally

204
Q

is it the Mand or Max canine, where the cusp tip is lingual to the line bisceting the root?

A

mand canine

205
Q

is it the Mand or Max canine, where the cusp tip is facial to the line bisceting the root?

A

max canine

206
Q

what shape is the root cross section of the max canine?

207
Q

in the max canine, the mesial outline in line with what?

A

mesial outline of root

208
Q

in the max 1st premolar, the lingual cusp is located more (mesially or distally)?

209
Q

what shape is the cross section of the max 1st premolar?

A

kidney bean

210
Q

what shape is the cross section of the max 2nd premolar?

211
Q

in the mand 1st premolar, the buccal cusp tip is centered over the

A

midline of the tooth

212
Q

what is the buccal HOC on the mand 1st premolar?

A

junction of middle and cervical 1/3

213
Q

in the mand 1st premolar, the lingual HOC is what to the outline of the root?

214
Q

in the mand 1st premolar, the lingual cusp tip is in line with what?

A

lingual border of the root

215
Q

in the max 1st molar, the MB cusp is in line with what?

216
Q

in the max 1st molar, the lingual root is in line with what?

A

buccal groove

217
Q

on the buccal side of the max 1st molar, the root trunk is how much of the root?

218
Q

label the furcations (largest to smallest) of the max 1st molar

219
Q

in the max 2nd molar, the MB root is in line with what?

A

buccal/lingual groove

220
Q

in max 2nd molar, the lingual root lines up with what?

A

DL cusp tip

221
Q

on mandibular molars, the crowns have what tilt?

A

lingual tilt

222
Q

on the mandibular 1st molar, is the cervical line higher lingually or buccally?

223
Q

what 4 things does the periodontium include?

A

gingiva
cementum
periodontal ligament
alveolar bone

224
Q

this surrounds the tooth to form a collar of tissue with a space or sulcus; most incisal unattached portion

A

free gingiva

225
Q

seperates attached gingiva from free gingiva

A

free gingival groove

226
Q

this extends between the free gingiva and alveolar mucosa

A

attached gingiva

227
Q

this is the zone of gray to light ot coral pink keratinized masticatory mucos that is firmly bound to underlying bone

A

attached gingiva

228
Q

this is the junction between attached gingiva and the looser, alveolar mucosa

A

mucogingival junction

229
Q

this is moveable, dark pink to red tissue apical to the mucogingival junction

A

alveolar mucosa

230
Q

what are the 4 functions of the pulp?

A

formative, nutritive, sensory, defensive

231
Q

what tooth is LEAST likely to have a bifurcated root?

A

maxillary canine

232
Q

what tooth has the most splayed roots of any tooth in the permanent dentition; may splay out wider than crown width

A

maxillary 1st molar

233
Q

resorption begins how many years after root formation is completed?

234
Q

where does resportion begin at?

A

apex of the tooth

235
Q

the 12 molar teeth that erupt after the 20 permanent teeth are called

A

accessional teeth

236
Q

is enamel thinner in permanent or primary teeth?

237
Q

are permanent or primary teeth lighter in color?

238
Q

what tooth has a greater MD width than a IG width?

A

primary maxillary CI

239
Q

do permanent or primary teeth have a more bulbous crown?

240
Q

do permanent or primary teeth have thicker enamel?

241
Q

do permanent or primary teeth have more pronounced cervical constrictions?

242
Q

do permanent or primary teeth have larger pulp chambers with more prominent pulp horns?

243
Q

do permanent or primary teeth have larger root trunks?

244
Q

the primary maxillary 1st molar has a very prominent convexity on what aspect?

245
Q

describe the leeway space

A

max canine –> 2nd premolar area of permanent have a smaller space than the primary

246
Q

All the max premolars and molars have what buccal and lingual HOC?

A

Buccal = cervical 1/3
Lingual = middle 1/3

247
Q

all the mandibular premolar, have the same HOC for buccal and lingual except for what tooth?

A

mand 1st premolar

248
Q

what is the buccal HOC of mand 1st premolar?

A

junction of middle and cervical 1/3

249
Q

Which image shows the mesial view of the mandibular lateral incisor?

A

A

Explanation​: From the mesial view, you can see a portion of the lingual surface. You can’t see any of the lingual surface from the distal view.

250
Q

What is the name of the highlighted embrasure?
A. Incisal embrasure
B. Gingival embrasure
C. Facial embrasure
D. Lingual embrasure

A

B. Gingival embrasure

251
Q

What is the name of the highlighted embrasure?
A. Incisal embrasure
B. Gingival embrasure
C. Facial embrasure
D. Lingual embrasure

A

C. Facial embrasure

252
Q

Identify this tooth
A. Maxillary canine
B. Maxillary 1st premolar
C. Maxillary 2nd premolar

A

B. Maxillary 1st premolar

253
Q

What premolar is this tooth?
A. Maxillary 1st
B. Maxillary 2nd
C. Mandibular 1st
D. Mandibular 2nd

A

C. Mandibular 1st

Explanation​: Note the mesiolingual groove outlined in red. This groove is unique to the mandibular 1st premolar!

254
Q

Using universal notation, what is the tooth number for this tooth?
A. #20
B. #21
C. #28
D. #29

255
Q

What is the name of the structure highlighted in orange?
A. Cusp tip
B. Marginal ridge
C. Oblique ridge
D. Triangular fossa

A

C. Oblique ridge

256
Q

Identify this molar
A. Maxillary 1st
B. Maxillary 2nd ​

A

A. Maxillary 1st

257
Q

Using universal notation, what is the tooth number for this tooth?
A. #2
B. #3
C. #14
D. #15

258
Q

These pictures represent the mesial and distal views of the same tooth. Identify the tooth.
A. #18
B. #19
C. #30
D. #31

A

C. #30

Explanation​: You can tell it is permanent mandibular 1st molar because you can see DB and Distal cusps from the distal view (no distal cusp in the mandibular 2nd molar). Then, using the surfaces as orientation, you can determine it is a mandibular RIGHT first molar – #30.

259
Q

What molar is illustrated in this transverse section?
A. Maxillary 1st
B. Maxillary 2nd
C. Mandibular 1st
D. Mandibular 2nd

A

A. Maxillary 1st

260
Q

Using universal notation, what is the tooth number of the tooth illustrated here in transverse section?
A. #2
B. #3
C. #14
D. #15

261
Q

Which is the older tooth?

262
Q

What is the universal number for this tooth?
A. #6
B. #7
C. #8
D. #9
E. #10
F. #11

263
Q

What is the universal number for this tooth?
A. #6
B. #7
C. #8
D. #9
E. #10
F. #11

264
Q

Which crown belongs with the below root (shown in transverse section)?

265
Q

Which crown belongs with the below root (shown in transverse section)?

266
Q

Identify this incisor
A. Primary maxillary central incisor
B. Primary maxillary lateral incisor
C. Permanent maxillary central incisor
D. Permanent maxillary lateral incisor

A

A. Primary maxillary central incisor

Explanation​: The primary central incisor is notable for having a mesiodistal width that is GREATER than its incisogingival length. This is the only incisor in either dentition with this characteristic!

267
Q

Which primary molar has an oblique ridge & a distolingual groove?
A. Maxillary 1st
B. Maxillary 2nd
C. Mandibular 1st
D. Mandibular 2nd

A

B. Maxillary 2nd

D1 Fall - Morphology (3 decks)

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