Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Occlusion > Lab Station Exam > Flashcards

Lab Station Exam Flashcards

1
Q

Alignate impression mixing time:

A

45-60 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Time available from start of mixing time to final time at which impression can be seated without distortion:

A

Working time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Time required for solution to gel reaction:

A

Setting time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Setting time may also be called:

A

Gelation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Setting time for alginate impression:

A

3-4 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What should the thickness of uniform distribution of an alginate impression material be:

A

2-6mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe how to remove an impression from patients mouth:

A

Sharp snapping action after breaking border seal, do not twist or rock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Criteria for accurate casts:

  1. Free of _____/____
  2. Surface should be ___, ___ & free from ____
  3. Should extend to all ____
  4. Base should be ____ thick at thinnest place
  5. Base should be ____
  6. Base should not interfere with ______
  7. Casts should have a horizontal land area of _____ at the _____
  8. Side walls of the base should be trimmed ____
  9. Should be accurate & in _____; otherwise remake
  10. Should appear ___ & free from any ___ & ____
A
  1. voids/nodules
  2. hard, dense; grinding sludge
  3. required areas
  4. 10-15mm thick
  5. Flat
  6. articulation
  7. 2-3mm; periphery of vestibule
  8. vertical
  9. MIP
  10. clean; debris or sludge
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Label A-D:

A

a) Facebow
b) Index/levels
c) Transfer assembly
d) Orbital pointer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The type of facebow used in lab:

A

Arbitrary type: Denar slidematic facebow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the purpose of a facebow:

A

Record spatial relationship of maxillary arch to anatomic reference points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How do we determine the third point of reference?

A

43mm from maxillary incisor incisal edge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The third point of reference should be:

A

Repeatable & reproducible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Label A-E:

A

a) upper member
b) lower member
c) anterior/incisal pin
d) mounting ring
e) condylar mechanism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What type of articulator is an Arcon?

A

Semi-adjustable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Describe an Arcon Semi-adjustable articulator:

A

Condyles in lower member & condylar inclination in upper member

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The purpose of an articulator is:

A

A mechanical device that simulates mandibular movements of condyles in their fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

When articulating the lower cast, adjust the incisal guide pin to ____ & use:

A

0 degrees; 2-step mounting technique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Tooth dependent position which is independent of condylar position:

A

Maximum intercuspation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Describe MI:

A

Maximum intercuspation- tooth dependent position independent of condylar position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

TMJ dependent position which is independent of tooth position:

A

Centric relation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Describe CR:

A

Centric relation- Condyles in most anterior-superior position, independent of tooth position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Important for deprogramming muscles of mastication to achieve and successfully record CR:

A

Anterior Deprogrammer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Anterior deprogrammer is important for ____ to achieve & successfully record _____

A

Deprogramming muscles of mastication; CR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is this device & describe its function:

A

Anterior deprogrammer: important for deprogramming muscles of mastication & to achieve & record CR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is this device & describe its function:

A

Leaf Gauge- finds the first point of contact in CR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

A leaf gauge finds the _____ in _____

A

First point of contact; CR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Label A-E:

A

a) functional cusp bevel
b) retention groove
c) axial reduction
d) chamfer margin
e) morphologic occlusion reduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

On a #19 full gold crown prep reduction:

a) Functional cusp bevel:

b) Retention groove:

c) Axial-depth reduction

d) Chamfer margin

e) Functional cusp:

f) Central foss

g) Non-functional cusps

A

a) 1.5 and tapers to 1.0mm

b) full depth of 170L bur

c) 0.5 to 1.0mm

d) 0.5mm

e) 1.5mm

f) 1.5mm

g) 1.0mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The morphologic occlusal reduction includes the reduction of:

A

Functional cusps, central fossa & non-functional cusps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

On a #19 full gold crown prep what is reduced further, the functional or non-functional cusp?

A

Functional cusp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What is used for the preliminary crown impression?

A

Reduction index (Putty matrix)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is the purpose of the reduction index made from putty matrix?

A

Evaluate occlusal reduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

29 All ceramic crown preparation guidelines:

a) occlusal reduction:

b) axial reduction:

c) occlusal convergence:

d) cervical finish line:

e) ______ line angles

f) occlusocervical length:

A

a) 1.5-2.0 mm

b) 1.5 mm

c) 6-10 degrees

d) 1.0 mm

e) rounded

f) greater than 3 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Posterior crown reduction criteria:

_____mm margin

_____ mm axial

_____ mm occlusal

______ internal/external line angles

____ shoulder margin design or ____

A

1.0-1.2mm margin

1.5mm axial

1.5-2.0mm occlusal

Rounded internal/external line angles

Modified shoulder margin design or heavy chamfer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

A cerec crown can be made of:

A
  1. Zirconium
  2. Glass ceramic
  3. Ceramo-metal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

A Cerec crown compared to a full gold crown requires:

A

More rounded & reduction of prep is needed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What are the steps to Cerec crown preparation:

A
  1. Scan
  2. Mill
  3. Stain
  4. Glaze
  5. Fire
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

The first step in making a custom anterior guide table:

A

Mix monomer (liquid) and Duralay- Methyl Methacrylate Resin (powder)

40
Q

When making a custom anterior guide table, what is the liquid? What is the powder?

A

Liquid= monomer
Powder= Duralay (methyl methacrylate resin)

41
Q

When making a custom anterior guide table, the casts will be in:

A

MIP

42
Q

When making a custom anterior guide table, the upper member of articulator should:

A

Open/close WITHOUT interferences

43
Q

When making a custom anterior guide table, there should be a _____ of the incisal pin as it _____

A

There should be a clear undisrupted view of the incisal pin as it contacts the custom table

44
Q

When making a custom anterior guide table, the pin should be contacting the table during:

A

Excursive movements

45
Q

When making a custom anterior guide table, the pin should be contacting the table throughout excursive movements, and the anterior teeth:

A

Should be in contact throughout the movement as well

46
Q

When we waxed crowns #6 & #8, we set the stone casts to ______ & evaluated _____ & _____

A

MIP; Right lateral excursive & protrusive

47
Q

When we waxed crowns #28, #29 & #30, we used _____ to check for interocclusal contact

A

Delar powdered wax

48
Q

When we waxed crowns #28, #29 & #30 the Delar powdered wax was used to check:

A

Interocclusal contacts

49
Q

When we waxed crowns #28, #29 & #30, the stone casts were set to _____

A

MIP

50
Q

In posterior teeth:

Functional cusp=

Nonfunctional cusp=

A

Functional cusp= buccal

Nonfunctional cusp= lingual

51
Q

When we waxed crowns #28, #29 & #30 we evaluated what movements?

A

Excursive & Protrusive

52
Q

When we waxed crowns #28, #29 & #30

The ML cusp of the maxillary first molar should contact:

A

Central fossa of #30

53
Q

When we waxed crowns #28, #29 & #30

The _____ of _____ should contact the central fossa of #30

A

ML cusp of the maxillary first molar

54
Q

One cusp occluding in three different areas of opposing tooth:

A

Tripodization

55
Q

When we waxed crowns #28, #29 & #30

The distal cusp tip of #30 should contact:

A

Distal fossa of maxillary first molar (only cusp that does not occlude with the opposing fossa)

56
Q

Shim stock is used to evaluate:

A

Occlusal contacts

57
Q

Used to evaluate where occlusal adjustments need to be made:

A

Articulating paper

58
Q

Describe ideal contacts of posterior teeth:

A

Posterior teeth should have multiple, even, B/L &b simultaneous occlusal contacts

59
Q

Describe ideal contacts of anterior teeth:

A

Anterior teeth should have lighter occlusal contacts when posterior teeth are in MIP

60
Q

Why should anterior teeth have lighter occlusal contacts when teeth are in MIP:

A

Because anterior teeth are not axially loaded

61
Q

In MIP the desired outcome=

A

Centric stops

62
Q

Describe the desired outcome of MIP (centric stops) (3):

A

-Atleast three maxillary & three mandibular teeth in each quadrant are contacting

-Most of the anterior teeth are contacting

-Anterior teeth exhibit lighter contacts than posterior teeth

63
Q

It is recommended to adjust _____ vs. _____

A

Adjust the enamel layer of maxillary lingual fossa vs. adjusting the incisal edges

64
Q

Why is it recommended to adjust the enamel layer of maxillary lingual fossa vs. incisal edges when possible:

A

To avoid altering esthetics

65
Q

Describe working side interference during lateral excursive movements:

A

Inner inclines of maxillary buccal cusps & outer inclines of mandibular buccal cusps

66
Q

Describe non-working or balancing interference during lateral excursive movements:

A

Inner includes of maxillary lingual cusps & inner inclines of mandibular buccal cusps

67
Q

Working side interferences or non-working or balancing interferences occur during:

A

Lateral excursive movements

68
Q

Interferences during protrusive movements:

Anterior guidance should be present during ____

A

Excursive movements

69
Q

During excursive movements, anterior teeth should:

A

Disclude the posterior teeth during excursive movements

70
Q

Maxillary arch working cusps:

A

Lingual cusp (6)

71
Q

Maxillary arch non-working cusps:

A

Buccal cusp (6)

72
Q

Mandibular arch working cusps:

A

Buccal cusp (7)

73
Q

Mandibular arch non-working cusps:

A

Lingual cusp (6)

74
Q

How many centric occlusal contacts should be present per side in the maxillary arch:

A

6 per side

75
Q

(Maxillary Arch) Describe protrusive pathway:

A

From centric occlusion contact –> mesial

76
Q

(Maxillary Arch) Describe working pathway:

A

From centric occlusion contact –> mesial/buccal

77
Q

(Maxillary Arch) What side is the working side during a right lateral shift:

A

Right side

78
Q

(Maxillary Arch) What side is the working side during a left lateral shift:

A

Left side

79
Q

(Maxillary Arch) Describe the non-working pathway:

A

From centric occlusion –> lingual

80
Q

(Maxillary Arch) What side is the non-working side during a right lateral shift:

A

Left side

81
Q

(Maxillary Arch) What side is the non-working side during a left lateral shift:

A

Right side

82
Q

In the mandibular arch, how many centric occlusion contacts are present per side?

A

5 per side

83
Q

In the mandibular arch, describe protrusive pathway:

A

From centric occlusion contact –> distal

84
Q

In the mandibular arch, describe working pathway:

A

Fron centric occlusion contact –> lingual

85
Q

In the mandibular arch, what side is the working side during a right lateral shift?

A

Right

86
Q

In the mandibular arch, what side is the working side during a left lateral shift?

A

Left

87
Q

In the mandibular arch, describe the non-working pathway:

A

From centric occlusion contact –> distal/buccal

88
Q

In the mandibular arch, what side is the non-working side during a right lateral shift?

A

Left

89
Q

In the mandibular arch, what side is the non-working side during a left lateral shift?

A

Right

90
Q

What is the purpose of an occlusal guard?

A

Improve muscular pain condition & protect teeth & support structures

91
Q

How does an occlusal guard improve muscular pain conditions?

A

By altering sensory input to CNS

92
Q

What does an occlusal guard protect teeth/supportive structures from?

A

Abnormal occlusal forces

93
Q

A stabilization appliance is usually for:

A

Maxillary arch

94
Q

The purpose of a stabilization appliance is to:

A

Eliminate orthopedic instability between occlusal position & joint position

Treat muscle pain disorders

95
Q

In a stabilization appliance, the condyles will be:

A

In most stable musculoskeletal position the same time as teeth are contacting evenly/simultaneously

Occlusion (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions