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Undeleted > Manual Questions > Flashcards

Manual Questions Flashcards

0
Q

Illustrated below is a frontal boarder tracing of a pt w/ canine-guided occlusion. Which letter on the diagram defines the only point where posterior tooth contact occurs?

A

A. Center most forward pt

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1
Q

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

A

Distal fossa of the mandibular second premolar

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2
Q

The arrows on the illusion below represent the path by the opposing contacting cusps. The mandibular movement indicated is…

A

Left lateral, non-working side

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3
Q

When a protrusive mandibular movement (anterior teeth edge to edge) is achieved, the mandibular first molar has the potential to contact which maxillary teeth?

A

Second premolar and first molar

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4
Q

What condylar movement is performed as the mandible moves from a pure protrusive movement from maximum intercuspal position to a maximum protrudes position?

A

Translation

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5
Q

Protrusive movement is produced primarily because of contracture of which muscle?

A

Lateral pterygoid

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6
Q

As the mouth is opened widely, the articular disk moves in what direction in relation to the articular eminence?

A

Anteriorly

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7
Q

On the crowns of maxillary premolars, the height of contour is normally located in the cervical third on which tooth surface?

A

Facial

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9
Q

In the drawing below, the arrow represents a possible contacting area for which of maxillary cusps?

A

Lingual cusp of first premolar

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10
Q

Identify the mandibular movement in the drawing.

A

Left lateral (non working side) movement

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11
Q

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

A

Toward the tip of the mandibular second premolar

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12
Q

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

  1. flattened/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-edhed to cut food better and decrease food impaction
  5. rounded and wide enough for strength and to provide an occlusal platform when there are opposing cusps
A
  1. rounded to help form occlusal embrasures and improve food flow
  2. rounded to help form occlusal embrasures and decrease food impaction
  3. rounded and wide enough for strength and to provide an occlusal platform when there are opposing cusps
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13
Q

During function and in traumatic situations, the temporomandibular joint is protected by (4)

A

Synovial fluid

Durability of fibrocartilage

Ligament suspension

Muscles of mastication

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14
Q

These are correct for the _______ contacting position of the mandible.

  • it is a symmetrical position
  • the lateral pterygoid muscles are the prime movers to the position
  • the underside of the meniscus move distally relative to the superior surface of the mandibular condyle
A

Protruded contacting position

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15
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

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16
Q

In an ideal intercuspal position, the mesiofacial groove of a permanent mandibular first molar opposes which part of the maxillary first molar?

A

Triangular ridge of the mesiofacial cusp

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17
Q

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

A

Mesiofacial cusp of second molar

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18
Q

Assuming occlusion and alignment are normal, the arrow on the sketch below represents the path taken by the…

A

Fifth cusp of first molar

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19
Q

Indicate the mandibular movement in the sketch.

A

Lateral movement (working side)

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20
Q

Which anatomic entity of the permanent maxillary first molar moves through the distofacial sulcus of a permanent mandibular first molar?

A

Oblique ridge

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21
Q

The mandibular movement indicated on the sketch is…

A

Protrusive

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22
Q

The cusp of Carabelli is normally found on which aspect of a molar crown?

A

Mesiolingual

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23
Q

Which of the following permanent teeth usually have oblique ridges?

  1. max premolars
  2. max molars
  3. man premolars
  4. man molars
A
  1. maxillary molars
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24
Q

Which marginal ridges have little or no contact in ideal centric and eccentric maxillomandibular contact relationships?

  1. distal of max 2nd premolar
  2. distal of man 1st premolar
  3. distal of man 2nd premolar
  4. mesial of max canine
  5. mesial of man 1st premolar
A
  1. Distal of man 1st premolar
  2. Distal of man 2nd premolar
  3. Mesial of man 1st premolar
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25
Q

In the intercuspal position, the incisal 3rd of the facial surface of the permanent mandibular canine opposes the…

A

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

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26
Q

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

A

Mesial marginal ridge of the mandibular 2nd molar

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27
Q

Assuming occlusion and alignment are normal, the arrow on the sketch below represents the path taken by the…

A

Distofacial cusp of 2nd molar

28
Q

Assuming occlusion and alignment are normal, the arrow on the sketch below represents the path taken by the…

A

Mesiofacial cusp of a 2nd molar

29
Q

The mandibular movement indicated is…

A

Right lateral, working side

30
Q

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

A

Lingual cusp of a 2nd premolar

31
Q

In the sketch, the base of the arrow represents a possible contacting area for which of the following maxillary cusps?

A

Mesiolingual cusp of a 2nd molar

32
Q

The mandibular movement indicated is…

A

Right lateral, non-working side

33
Q

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

A

Incisal embrasure btw maxillary canine and lateral incisor

34
Q

Which jaw position is determined almost exclusively by tooth contact?

A

Intercuspal position

35
Q

During nonmasticatory swallowing, teeth are usually…

A

In contact in intercuspal position

36
Q

Which covers the articulating osseous structures of the temporomandibular joint?

A

Dense avascular fibrous connective tissue

37
Q

In the sketch, the arrows indicate which mandibular movement…

A

Left lateral, working side

38
Q

In the figure below, which number designates retruded contacting position?

39
Q

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

  1. protrusive
  2. lateral (working)
  3. lateral (non-working)
  4. lateral protrusive
A
  1. Protrusive
  2. Lateral protrusive
40
Q

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

41
Q

The disk (meniscus) of the temporomandibular joint is moved forward principally by the…

A

Lateral pterygoid muscle

42
Q

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

A

Mesial marginal ridge area of the maxillary first premolar

43
Q

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

A

On the mesial marginal ridge area

44
Q

When the teeth are in centric occlusion, the position of the mandible in relation to the maxilla is primarily determined by the…

A

Intercuspation of teeth

45
Q

In the sketch, the arrows represent possible contacting areas for which maxillary cusps?

A

Lingual cusps of premolars

46
Q

Identify the mandibular movement in this drawing.

A

Right lateral (non-working side)

47
Q

The cusp of Carabelli occurs with sufficient frequency to be considered normal in a:

  1. primary maxillary 1st molar
  2. primary maxillary 2nd molar
  3. permanent mandibular 1st molar
  4. permanent maxillary 1st molar
A
  1. primary maxillary 2nd molar
  2. permanent maxillary 1st molar
48
Q

The dentist placed a cast crown on a pt who has an ideal canine guided occlusion. The maximum intercuspal position (MIP) contacts are ideal; however, when the lateral movements were evaluated with an articulating paper, smudge marks were noted.

In order to eliminate undersirable nature of this contact (a, b, c), which portions of the crown should be removed by selective grining w/ a bur?

A

Only the b and c portions of the smudge mark

49
Q

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

  1. the embrasure space btw a man right 3rd molar and a man right 2nd molar
  2. the embrasure space btw a man right 2nd molar and a man right 1st molar
  3. the buccal groove area of a man right 2nd molar
  4. the buccal groove area of a man 1st molar
  5. none of these
A

None of these

50
Q

Which muscle is the prime mover in effecting a left working movement?

A

Right lateral pterygoid

51
Q

In an ideal centric occlusion, the lingual cusp tip (or tips) of a mandibular 2nd premolar contact(s)…

A

No opposing cusps

52
Q

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

A

Inner aspects of mandibular lingual cusps

53
Q

In the drawing, the arrows represent the possible contacting areas for which mandibular cusps?

A

Facial cusps of premolars

Distal cusp of 1st molar

54
Q

Assuming that occlusion and alignment are normal, the arrow on the sketch represents the path taken by the…

A

Lingual cusp of a 1st premolar

55
Q

The dentist placed a cast crown on a pt who has an ideal canine guided occlusion. The maximum intercuspal position (MIP) contacts are ideal; however, when the lateral movements were evaluated with an articulating paper, smudge marks were noted.

Which maxillary teeth is responsible for a smudge mark on marked a, b, c?

A

Maxillary 1st molar

56
Q

The dentist placed a cast crown on a pt who has an ideal canine guided occlusion. The maximum intercuspal position (MIP) contacts are ideal; however, when the lateral movements were evaluated with an articulating paper, smudge marks were noted.

The smudge mark labeled a, b, c represents what contact?

A

Working side

57
Q

In a normal occlusion, the distolingual cusp of a maxillary 2nd molar occludes with the…

A

Marginal ridges of a mandibular 2nd molar and a mandibular 3rd molar

58
Q

The mandibular movement indicated by the drawing…

A

Right lateral, working side

59
Q

The mandibular movement indicated in the drawing…

A

Left lateral, working side

60
Q

The condyle on the working side generally rotates about a …(choose one)

  1. sagittal axis only
  2. horizontal axis only
  3. horizontal axis and translates laterally
  4. vertical axis and translates laterally
A

Vertical axis and translates laterally

61
Q

In a right lateral excursion, the mesiofacial cusp of the maxillary right first molar passes through which groove of the mandibular right 1st molar?

A

Lingual groove

62
Q

When the mandible slides in a protrusive contacting movement, which mandibular teeth can make contact with the maxillary lateral incisors?

A

Lateral incisors and canines

63
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 the…

A

Facial groove

65
Q

In the drawing below, the arrow represents a possible contacting area by which of the following mandibular cusps?

A

Facial cusp of first premolar

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