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Tim's Cards > Operative Quiz 4/6 and Test III > Flashcards

Operative Quiz 4/6 and Test III Flashcards

1
Q

T/F
In order to treatment plan, Diagnostic Data such as Pt exam/charting, medical condition, periodontal condition, Caries/CRA, Habits/diet, Occlusion,
Radiographs, Diagnostic study models, face bow records, Diagnodent caries laser detection, trans-illumination, and electric pulp vitality are needed

A

True

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2
Q

Before the Dentin is invaded, OHI, etc. can be done for Prevention. What 3 things can be done for Remineralization?

A

Fluoride rinses

Fluoride trays

CAMBRA balance

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3
Q

Once the DEJ is invaded, caries progress ______, so must restore

A

rapidly

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4
Q

Name 5 Available Restorative material that can be used.

A

Composites

Amalgam

Glass Ionomers

Gold

Ceramic

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5
Q

Composites have great ______ but poor ______.

A

Aesthetics

Wear resistance

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6
Q

What material isn’t generally used for Class II’s unless it is very temporary?

*has the worst wear of any restorative matl

A

Glass Ionomer

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7
Q

T/F

Ceramics have great aesthetics, high cost, and increasingly better _____.

A

Longevity

not a disadvantage

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8
Q

If a large carious lesion has asymptomatic pulp, what is a good restoration route?

A

Crown

*vitality test/x-rays also a must

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9
Q

In an outline, the isthmus must be _____ mm.

A

less than or equal to 1

*in reality 1 ish

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10
Q

The explorer 1 mm past the tip is ____ mm

A
  1. 5 mm

* facial/lingual extensions of a slot

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11
Q

Faciolingually, the isthmus should be _____.

A

Centered

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12
Q

The Contact Area is usually ______ to the Central Groove

A

Facial

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13
Q

Why is the facial “s curve” more pronounced?

A

Must extend to open up occlusal contact, which is Greater facially.

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14
Q

Why do retention features have to be in Dentin?

A

It is more resilient and can absorb more energy.

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15
Q

The width of the Box is ____ in Premolars and _____ in Molars.

A
  1. 0 mm

1. 2 - 1.5 mm

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16
Q

The minimum depth of the pulpal floor in an Amalgam prep is _____ mm

How deep at walls?

A
  1. 5

2. 0 mm

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17
Q

T/F

It is not permissible to have enamel on the pulpal floor

A

False

*enamel ok for pulpal floor, not retention grooves

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18
Q

T/F
Enamel islands are permissible on the pulpal floor.

When should they be removed?

A

True

If stained underneath

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19
Q

T/F

Retention grooves should be cut into the axial wall directly

A

False

*should be a continuation of axial wall

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20
Q

How far should retention grooves go?

A

From Gingival floor to Pulpal floor

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21
Q

T/F

The axio-pulpal line angle should be rounded

A

True

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22
Q

The 7 Orderly Steps of Cavity Preparation:

A

Outline form

Retention

Resistance

Convenience

Caries removal in Dentin

Finish enamel walls

Cleane cavity prep

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23
Q

T/F

You should start your slot just INSIDE the marginal ridge

A

True

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24
Q

How wide is the tip of a hoe?

A

1.2 mm

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25
Q

T/F

The axio-pulpal line angle should be beveled with a hatchet or 132-F diamond bur

A

True

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26
Q

T/F

Cutting the slot before the occlusal surface tends to remove less material

A

True

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27
Q

Where is the smallest bicuspid box?

A

Mesial 1st bicuspid

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28
Q

What premolar has a transverse ridge not to be crossed?

What else is unique about this preparation?

A

Mandibular 1st PM

pulpal floor sloped

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29
Q

The Isthmus in mandibular molars tend to be slightly _______.

A

Facial to central groove

30
Q

What is important about cutting on a Maxillary molar?

A

Don’t hit oblique ridge

31
Q

T/F

Amalgam is an insulating material

A

False

*non-insulating

32
Q

T/F
Amalgam is considered an intracoronal restoration, however, extracoronal restorations are done when a pt can’t afford a crown.

A

True

33
Q

Low-Copper Amalgam has ____% copper

High-Copper Amalgam has ____ % copper and has better _______.

A

2-5%

12-30%

Corrosion

34
Q

What type of Amalgam has 20-50% greater longevity?

A

Zinc containing

*Less Gamma 2

35
Q

Lathe cut Amalgam has _____

Spherical cut Amalgam hass _____

Normally we use _____

A

Lots of Mercury

Less Mercury

Admixture - gives us more working time

36
Q

Ad-mixed, high copper, zinc containing Amalgam is called…

Spherical, high copper, no zinc, Less condensable Amalgam is called…

A

Dispersalloy

Tytin FC

37
Q

T/F

There is no connection between MS, Chronic Fatigue Syndrome, etc, to Amalgam

A

True

38
Q

Use ____ condensers first and _____ condensers last.

A

Small

Large

39
Q

The advantage of Bonded Amalgams is Less Fracture, what is the disadvantage?

A

Corrosion won’t seal

40
Q

T/F

Calcium Hydroxide Paste, Gluma (and resins), Glass Ionomers, etc can be liners and sealers

A

True

41
Q

What are the 2 types of Tofflemires and where are they placed?

A

Straight - Facial

Angled - Lingual

42
Q

The Matrix Band should be placed ____mm above the preparation

A wedge must cover at least ___mm below the gingival margin and always enters via the ____ side.

A

1 mm

1 mm

Lingual

43
Q

What type of Matrix Band should be used for deep areas?

A

MOD

44
Q

Use the ____ end of the Amalgam Carrier first

A

Small

45
Q

Unter-triturated Amalgam is _____

Over triturated Amalgam is _____

Perfect is _____

A

too soft/dull

too dry/hard/hot

shiny/pliable

46
Q

T/F

In order to avoid voids in box corners, use Lateral Condensation

A

True

47
Q

The Hollenbeck Carver has a ____ shape, making it a good Amalgam carver

A

Bi-convex

48
Q

The band should lift out gently at a ___ angle, and never use a ___ motion

A

45 degree

Sawing

49
Q

T/F

Finishing/Polishing Amalgams prolongs the life of the restoration

A

True

*Decreases tarnish, rough surfaces that accumulate plaque

50
Q

Finishing an Amalgam is used with a 7404 bur and you must wait for how long?

A

24 hours

51
Q

Sealants have poor longevity and PRR has a ____ year lifespan.

Amalgam has a ____ year lifespan

A

5 year

10 year

52
Q

T/F

It is fine if a cavo-surface ends at an opposing contact

A

False

53
Q

Do not cut across the ______ of the Lower 1st ______.

A

Transverse ridge

Premolars

54
Q

Do not cut across the ______ of the Upper ______.

A

Oblique Ridge

Permanent Molars

55
Q

T/F

A small amount of undermined enamel is acceptable in a Composite Preparation

A

True

56
Q

What is the biggest factor when determining Outline Form of a preparation?

A

Caries

57
Q

Caries spread _____ once past the DEJ

A

laterally

58
Q

An Outline Form must be extended due to caries or ________.

A

Decalcified Enamel

59
Q

Amalgam outline form Converges, a Gold Inlay form ________.

A

Diverges

60
Q

What 2 burs create Convergent Walls?

A

245

330

61
Q

The minimum depth on an axial wall is _____ for adequate strength and _____ for molars.

A
  1. 0 mm

1. 2 mm

62
Q

T/F

The thermal expansion of amalgam creates a lot of internal strain on tooth structure

A

True

63
Q

The lack of an axio-pulpal line angle bevel can lead to…

A

Fracture

64
Q

0.5 mm separation on the proximal extensions of a slot preparation is an example of ________ Form.

A

Convenience

*place matrix band, avoid damaging adjacent teeth, carving

65
Q

T/F

Improvements in the strength of Amalgams have allowed new, more conservative design forms.

A

True

66
Q

T/F

A slot preparation doesn’t need a pulpal floor

A

True

67
Q

What does the Summitt Design for a slot prep add?

A

Occlusal dovetails

which are exaggerated extension grooves

68
Q

Diamond burs ______, and Carbide burs _____

A

abrade

chip

69
Q

Working on the right quadrant, the pt’s head turns to the ______.

If work on the left quandrants, the pt’s head turns to the _______.

A

Left

Right

70
Q

T/F

An open Proximal Contact is an automatic failure

A

True

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