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SP14 Occlusion > Final - Board Questions > Flashcards

Final - Board Questions Flashcards

1
Q

In an ideal intercuspal relation, the lingual cusp of the maxillary second premolar contacts the

A. distal fossa of the mandibular second premolar

B. mesial marginal ridge of the mandibular first molar

C. distal marginal rifge of the mandibular second molar

D. distal marginal ridge of the mandibular first premolar

A

A. distal fossa of the mandibular second premolar

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2
Q

Illustration below is a frontal boder tracing of a patient with canine-guided occlusion. Which letter on the diagram defines the only point where posterior tooth contat occurs

A

B

C

D

A

A

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3
Q

The arrows on the illustration represent the path taken by the opposing contactng cusps. The mandibular movement indicated is

A. protrusive

B. right lateral; working side

C. left lateral; working side

D. right lateral; nonworking side

E. left lateral; nonworking side

A

E. left lateral; non-working side

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4
Q

When protrisive mandibular movement (anterior teeth edge-to-edge) is acheived, the mandibular first molar has the potential to contact which of the following maxillary teeth

A. first and second premolars

B. second premolar only

C. second premolar and first molar

D. first and second molars

E. second molar only

A

C. second premolar and first molar

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5
Q

What condylar movement is performed as the mandible moves from a pure protrusive movement from maxium intercuspal position to a maximun protruded position

A. translation

B. rotation

C. hinge

D. medial and forward

A

A. translation

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6
Q

Protrusive movement is produced primarily because of contracture of which of the following muscles

A. masseter

B. mylohyoid

C. temporalis

D. medial pterygoing

E. lateral pterygoid

A

E. lateral pterygoid

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7
Q

As the mouth is opened widely, the articular disc moves what direction to the articular eminence

A. laterally

B. anteriorly

C. posteriorly

D. medially

E. superiorly

A

B. anteriorly

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8
Q

On the crowns of maxillary premolars, the height of contour is normally located in the cervical third on which of the following surfaces

A. facial

B. lingual

C. mesial

D. distal

A

A. facial

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9
Q

In the drawing, the arrow represents a possible contacting area for which of the following mandibular cusps

A. cusp of canine

B. facial cusp of first premolar

C. lingual cusp of first premolar

D. facial cusp of second premolar

E. lingual cusp of second premolar

A

B. facial cusp of first premolar

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10
Q

Identify the mandibular movement in the drawing

A. protrusive movement

B. right lateral; working side

C. right lateral; nonworking side

D. left lateral; working side

E. left lateral; nonworking side

A

E. left lateral; nonworking side

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11
Q

In this drawing, the arrow represents a possible contacting area for which of the following maxillary cusps

A. cusp of canine

B. facial cusp of the first premolar

C. lingual cusp of the first premolar

D. facial cusp of the second premolar

E. ligual cusp of second premolar

A

C. lingual cusp of the first premolar

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12
Q

In left lateral movement of the mandible, the lingual cusp of the maxillary right first premolar may appear to pass

A. into the facial embrasure between canine and first premolar

B. toward the tip of the mandibular second premolar

C. into the lingual embrasure space between first and second premolars

D. int othe lingual embrasure between canine and premolar

A

B. toward the tip of the mandibular second premolar

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13
Q

When restoring the marginal ridges of posterior teeth, their shape should be

1) flattened and square to eliminate food impaction
2) rounded to help form occlusal embrasures and improve food flow
3) rounded to help form occlusal embrasures and decrease food impaction
4) sharp-edges to cut food better and decrease food impaction
5) rounded and wide enough for strength and to provide occlusal platform when there are opposing cusps

A. 1 and 4

B. 2 and 3 only

C. 2, 3, and 5 only

D. 2 and 5 only

E. 3 and 5 only

A

C. 2, 3, and 5

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14
Q

During function and in traumatic situations, the TMJ is protected by

1) synovial fluid
2) durability of the fibrocartilage
3) ligament suspension
4) muscles of mastication

A. 1 only
B. 2 and 3 only
C. 2, 3, and 4 only
D. 4 only
E. all of the above

A

E. all of the above

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15
Q

Which of the following are correct for the protruded contacting positon of the mandible

1) it is a symmetrical positoon
2) is is an asymmetrical positon
3) the lateral pterygoids are the prime movers to the position
4) the medial pterygoigs are the prime movers to the positon
5) the underside of the meniscus remains fixed relative to the superior surface of the mandibular condyle
6) The underside of the meninscus moves distall relative to the superior surface of the mandibular condyle

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

A

A. 1, 3, and 6

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16
Q

When it occurs, the immediate side shift (bennett shift) usually has an effect on the mesiodistal positions of which molar cusps

A. all cusps
B. facial cusps only
C. lingual cusps only
D. centric holding cusps only
E. None of the above, molar cusps not affected

A

A. all cusps

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17
Q

In the drawing of maxillary teeth, the arrow represents a possible contacting area and direction for a mandibular cusp, identify the cusp

A. mesiofacial cusp of first molar
B. distofacial cusp of first molar
C. mesiolingual cusp of first molar
D. distolingual cusp of first molar
E. mesiofacial cusp of second molar
F. mesiolingual cusp of second molar

A

E. mesiofacial cusp of second molar

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18
Q

Indicate the mandibular movement

A. protrusion
B. retrusion
C. lateral movement (working side)
D. lateral movement (nonworking side)
E. lateral-protrisive movement

A

C. lateral movement (working side)

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19
Q

Assuming occlusion and alignment are normal, the arrow represents the path taken by the

A. mesiofacial cusp of first molar
B. mesiolingual cusp of first molar
C. distofacial cusp of the first molar
D. distolingual cusp of first molar
E. fifth cusp of the first molar

A

E. fifth cusp of the first molar

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20
Q

The mandibular movement indicated is

A. protrusive
B. right lateral; working side
C. left lateral; worknig side
D. right lateral; balancing side
E. left lateral; balancing side

A

A. protrusive

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21
Q

Which of the following entities of the permanent maxillary first molar moves through the distofacial sulcus of a permanent mandibular first molar

A. mesial marginal ridge
B. distal marginal ridge
C. mesiofacial cusp
D. distofacial cusp
E. oblique ridge

A

E. oblique ridge

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22
Q

The cusp of carabelli is normally found of what molar crown

A. mesiofacial
B. mesiolinual
C. distofacial
D. distolingual
E. near the midpoint of the lingal surface

A

B. mesiolingual

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23
Q

Which of the following marginal ridges have little or no contact in ideal centric relation and eccentric maxillomandibular contact relationships

1) distal of maxilary second premolar
2) distal of mandibular first premolar
3) distal of mandibular second premolar
4) mesial of maxillary canine
5) mesial of mandibular first premolar

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

A

D. 2, 3, and 5

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24
Q

In the intercuspal position, the incisal third of the facial surface of the permanent mandibular canine opposes the

A. maxillary lateral incisor and the maxillary canine at the approximation of their marginal ridges
B. mesiolingual fossa and the maxillary ridge of the maxillary canine at the junction ofthe cervical and middle third
C. incisal embrasure between maxillary canine and the lateral incisor
D. none of the aboe

A

A. maxillary lateral incisor and the maxillary canine at the approximation of their marginal ridges

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25
Q

In an ideal intercuspal position, the distolingual cusp of a permanent maxillary first molar opposes the

A. central fossa of the mandibular first molar
B. lingual sulcus of the mandibular first molar
C. facial embrasure between the mandibular first and second molars
D. mesial fossa of the mandibular second molar
E. mesial marginal ridge of the mandibular second molar

A

E. mesial marginal ridge of the mandibular second molar

26
Q

Assuming occlusion is ideal and alignment is normal, the arrow represents the path taken by the

A. mesiofacial cusp of second molar
B. mesiolingual cusp of second molar
C. distofacial cusp of the second molar
D. distolingual cusp of second molar
E. mesiofacial cusp of the third molar

A

C. distofacial cusp of the second molar

27
Q

The mandibular movement indicated is

A. protrusive
B. right lateral; working
C. left lateral; working
D. right lateral; nonworking
E. left lateral; nonworking

A

B. right lateral; working

28
Q

Assuming occlusion and alignment are nomral, the arrow represents the path taken by the

A. distofacial cusp of the first molar
B. fifth cusp of the first molar
C. mesiofacial cusp of the second molar
D. mesiolingial cusp of the second molar
E. distofacial cusp of the second molar

A

C. mesiofacial cusp of the second molar

29
Q

Assuming occlusion and alignment are nomral, the arrow represents the path taken by the

A. facial cusp of the first premolar
B. lingual cusp of the first premolar
C. facial cusp of the second premolar
D. lingual cusp of the second premolar
E. mesiolingual cusp of a firts molar

A

D. lingual cusp of the second premolar

30
Q

The mandibular movemnt indicated is

A. protrusive
B. right lateral; working
C. left lateral; working
D. right lateral; nonworking
E. left lateral; nonworking

A

D. right lateral; non working

31
Q

The base of the arrow repreents a possible contacting area for which of the following maxillary cusps

A. lingual cusp of second premolar
B. distolingual cusp of first molar
C. mesiolingual cusp of first molar
D. mesiolingual cusp of seond molar
E. distolingual cusp of second molar

A

D. mesiolingual cusp of second molar

32
Q

In an ideal intercuspal position (centric occlusion), the cusp of a permanent mandibular canine opposes the

A. marginal ridges on maxillary premolars
B. distal fossa of a maxillary first premolar
C. occlusal embrasure between maxillary canine and first premolar
D. incisal embrasure between canine and lateral incisor

A

D. incisal embrasure between canine and lateral incisor

33
Q

Which of the following jaw positions is determined almost exclusively by tooth contact

A. terminal hinge
B. maximun opening
C. postrual position
D. masticatory cycle
E. intercuspal position
F. retruded contacting position

A

E. intercuspal position

34
Q

During nonmasticatory swallowing, teeth are usually

A. protruded
B. in working arrangement
C. in contact in intercuspal position
D. none of the above, this is a nonexistant act

A

C. in contact in intercuspal position

35
Q

In the sketch below, the arrows indicate which of the following mandibular movements

A. protrusive
B. right lateral; working
C. left lateral; working
D. right lateral; nonworking
E. left lateral; nonworking

A

C. left lateral; working

36
Q

Which of the following covers the articulating osseous structures of the TMJ

A. synovial membrane
B. hyaline cartilage only
C. vascular fibrous connective tissue
D. dense avascular fibrous connective tissue
E. dense avascular elastic connective tissue

A

D. dense avascular fibrous connetive tissue

37
Q

In this figure, which number disignates retruded contacting position

A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
G. 7
H. 8

A

D. 4

38
Q

In normal occlusion, mandibular central incisors contact maxillary incisors in which of the following movements

1) protrusive
2) lateral; working
3) lateral; nonworking
4) lateral protrusive

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

A

C. 1 and 4 only

39
Q

The protrusive pathway of mandibular cusps on maxillary posteriore teeth is toward the

A. facial
B. distal
C. lingual
D. mesial
E. none of the above

A

D. mesial

40
Q

The disk (meniscus) of the TMJ is moved forward principally by the

A. condyle
B. articular capsule
C. stylomandibular ligament
D. medial pterygoid muscle
E. lateral pterygoid muscle

A

E. lateral pterygoid muscle

41
Q

In an indeal intercuspal position, the facial cusp of the mandibular first premolar contacts the

A. mesial marginal ridge area of the maxillary first premolar
B. distal marginal ridge area of the maxillary first premolar
C. distal inneral aspect of the lingual cusp of the maxillary first premolar
D. mesial outer aspect of the facial cusp of the maxillary first premolar
E. central groove of the maxillary second premolar

A

A. mesial marginal ridge area of the maxillary first premolar

42
Q

In an ideal arrangement of teeth in the intercuspal position, the mesiofacial cusp of the permanent mandbiular first molar would be in contact with the maxillary first molar

A. in the central fossa
B. in the distal fossa
C. on the oblique ridge
D. on the mesial marginal ridge

A

D. on the mesial marginal ridge

43
Q

When the teeth are in centric occlusion, the postioon of the mandible in relation to the maxila is primarily determied by the

A. intercuspation of teeth
B. presence of absence of diastemas
C. tonus of muscles of the head and neck
D. ligaments of the TMJ

A

A. intercuspation of teeth

44
Q

The arrows represent possible contacting areas for which of the following maxillary cusps

A. facial cusps of the premolars
B. lingual cusps of the premolars
C. facial cusp of the second premolar and mesiolingual cusp of the first molar
D. lingual cusp of the second premolar and mesiolingual cusp of the first molar

A

B. lingual cusps of the premolars

45
Q

Identify the mandibular movement

A. protrusive
B. right lateral; working
C. right lateral; nonworking
D. left lateral; working
E. left lateral; nonworking

A

C. right lateral; nonworking

46
Q

The cusp of caribelli occurs with sifficient frequency to be conisdered normal in a

1) primary maxillary first molar
2) primary maxillary second molar
3) permanent mandibular first molar
4) perminant maxilary first molar

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

A

C. 2 and 4

47
Q

The dentist places a cast crown on a patient who has an ideal canine gided occlusion. The MIP contacts are ideal however, when lateral movemens were evaluated with articulating paper, the following smudge marks were noted. In order to eliminate the undesirable nature of this contact (abc) which portions of the crown should be removed with seletice grinding of the bur

A. the entire smudge surface only
B. only the a and b portions
C. only the b and c portions

A

C. only the b and c portions

48
Q

In a left working movement, the mesiofacial cusp of the maxillary right second molar will pass through which of the following

A. the embrasure space between a mandibular right third molar and mandibular second molar
B. the embrasure spae between mandibular right second molar and mandibular right first molar
C. the buccal groove area of the mandibular right second molar
D. the buccal groove area of the mandibular first molar
E. none of these

A

E. none of these

49
Q

Which of the following muscles is the prime mover in effecting a left working movement

A. left lateral pterygoid
B. left medial pteryoid
C. right lateral pterygoid
D. right medial pterygoid

A

C. right lateral pterygoid

50
Q

In ideal centric occlusion, the lingual cusp tip (or tips) of a mandibular second premolar contact(s)

A. the disto-occlusal slope of the buccal cusp of a maxillary first premolar
B. the disto-occlusal slope of the lingual cusp of a maxillary first premolar
C. the mesio-occlusal cusp ridge of a maxillary second premolar
D. the diso-occlusal cusp ridge of a maxillary second premolar
E. no opposing cusps

A

E. no opposing cusps

51
Q

In a posterior crossbite relationship, which of the may contact in a working movement

A. outer aspects of mandibular facial cusps
B. outer aspects of maxillary lingual cusps
C. outer ascpets of mandibular lingual cusps
D. inner aspects of mandibular lingual cusps

A

D. inner aspects of mandibular lingual cusps

52
Q

The arrows represent contacting areas for which ofthe following mandibular cusps

A. cusp of canine, facial cusp of first premolar, and distal cusp of first molar
B. facial cusps of premolars and distal cusp of first molar
C. facial cusps of premolars and mesiofacial cusp of second molar
D. lingual cusp of premolars and distolingual cusp of first molar

A

B. facial cusps of premolars and distal cusp of first molar

53
Q

Assuming that occlusion and alignemnt are normal, the arrow on the sketch below represents the path taken by

A. cusp of canine
B. facial cusp of a first premolar
C. lingual cusp of a first premolar
D. facial cusp of a second premolar
E. lingual cusp of a second premolar

A

C. lingual cusp of a first premolar

54
Q

The dentist places a cast crown on a patient who has an ideal canine gided occlusion. The MIP contacts are ideal however, when lateral movemens were evaluated with articulating paper, the following smudge marks were noted. Which of the following maxillary teeth is responsible for the smudge mark

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

A

A. first molar

55
Q

The dentist places a cast crown on a patient who has an ideal canine gided occlusion. The MIP contacts are ideal however, when lateral movemens were evaluated with articulating paper, the following smudge marks were noted. The smudge mark represents what contact

A. working side
B. nonworking side
C. protrusive
D. lateral protrusive

A

A. working side

56
Q

In normal occlusion, the distolingual cusp of maxillay second molars occlusedes with the

A. central fossa of a mandibular second molar
B. distal fossa of a mandibular second molar
C. central fosssa of a mandibular third molar
D. marginal ridges of a mandibular first molar and a mandibular second molar
E. marginal ridges of a mandibular second molar and a mandibular third molar

A

E. marginal ridges of a mandibular second molar and a mandibular third molar

57
Q

The mandibular movement indicated is

A. protrusive
B. right lateral; working
C. left lateral; working
D. right lateral; non working
E. left lateral; non working

A

B. right lateral; working

58
Q

The mandibular movement indicated is

A. protrusive
B. right lateral working
C. left lateral working
D. right lateral nonworking
E. left lateral nonworking

A

C. left lateral; working

59
Q

The condyle on the working side generally rotates about a

A. sagittal axis only
B. horizontal axis only
C. horizozontal axis and translates laterally
D. vertical axis and translates laterally

A

D. vertical axis and translates laterally

60
Q

In right lateral excursion, the mesiofacial cusp of the maxillary right first molar passes through which of the following grooves of the mandibular right first molar

A. lingual groove
B. central groove
C. facial groove
D. distofacial groove

A

A. lingual groove

61
Q

When the mandible slides in protrusive contacting movement, which of the following mandibular teeth can make contact withthe maxillary lateral incisors

A. central and lateral incisors
B. central incisors and canines
C. lateral incisors and canines
D. all of these

A

C. lateral incisors and canines

62
Q

On the occlusal surface of a maxillary molar, the groove that represents the working path of the distofacial cusp of the mandibular molar is that

A. central groove
B. facial groove
C. lingual groove
D. distal oblique ridge
E. transverse groove of the oblique ridge

A

B. facial groove

SP14 Occlusion (10 decks)

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