Operative Quiz 4/6 and Test III Flashcards Preview

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Flashcards in Operative Quiz 4/6 and Test III Deck (70):
1

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

True

2

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

Fluoride rinses

Fluoride trays

CAMBRA balance

3

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

rapidly

4

Name 5 Available Restorative material that can be used.

Composites

Amalgam

Glass Ionomers

Gold

Ceramic

5

Composites have great ______ but poor ______.

Aesthetics

Wear resistance

6

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

*has the worst wear of any restorative matl

Glass Ionomer

7

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

Longevity

(not a disadvantage)

8

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

Crown

*vitality test/x-rays also a must

9

In an outline, the isthmus must be _____ mm.

less than or equal to 1

*in reality 1 ish

10

The explorer 1 mm past the tip is ____ mm

0.5 mm

*facial/lingual extensions of a slot

11

Faciolingually, the isthmus should be _____.

Centered

12

The Contact Area is usually ______ to the Central Groove

Facial

13

Why is the facial "s curve" more pronounced?

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

14

Why do retention features have to be in Dentin?

It is more resilient and can absorb more energy.

15

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

1.0 mm

1.2 - 1.5 mm

16

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

How deep at walls?

1.5

2.0 mm

17

T/F
It is not permissible to have enamel on the pulpal floor

False

*enamel ok for pulpal floor, not retention grooves

18

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

When should they be removed?

True

If stained underneath

19

T/F
Retention grooves should be cut into the axial wall directly

False

*should be a continuation of axial wall

20

How far should retention grooves go?

From Gingival floor to Pulpal floor

21

T/F
The axio-pulpal line angle should be rounded

True

22

The 7 Orderly Steps of Cavity Preparation:

Outline form

Retention

Resistance

Convenience

Caries removal in Dentin

Finish enamel walls

Cleane cavity prep

23

T/F
You should start your slot just INSIDE the marginal ridge

True

24

How wide is the tip of a hoe?

1.2 mm

25

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

True

26

T/F
Cutting the slot before the occlusal surface tends to remove less material

True

27

Where is the smallest bicuspid box?

Mesial 1st bicuspid

28

What premolar has a transverse ridge not to be crossed?

What else is unique about this preparation?

Mandibular 1st PM

pulpal floor sloped

29

The Isthmus in mandibular molars tend to be slightly _______.

Facial to central groove

30

What is important about cutting on a Maxillary molar?

Don't hit oblique ridge

31

T/F
Amalgam is an insulating material

False

*non-insulating

32

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

True

33

Low-Copper Amalgam has ____% copper

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

2-5%

12-30%

Corrosion

34

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

Zinc containing

*Less Gamma 2

35

Lathe cut Amalgam has _____

Spherical cut Amalgam hass _____

Normally we use _____

Lots of Mercury

Less Mercury

Admixture - gives us more working time

36

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

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

Dispersalloy

Tytin FC

37

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

True

38

Use ____ condensers first and _____ condensers last.

Small

Large

39

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

Corrosion won't seal

40

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

True

41

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

Straight - Facial

Angled - Lingual

42

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.

1 mm

1 mm

Lingual

43

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

MOD

44

Use the ____ end of the Amalgam Carrier first

Small

45

Unter-triturated Amalgam is _____

Over triturated Amalgam is _____

Perfect is _____

too soft/dull

too dry/hard/hot

shiny/pliable

46

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

True

47

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

Bi-convex

48

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

45 degree

Sawing

49

T/F
Finishing/Polishing Amalgams prolongs the life of the restoration

True

*Decreases tarnish, rough surfaces that accumulate plaque

50

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

24 hours

51

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

Amalgam has a ____ year lifespan

5 year

10 year

52

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

False

53

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

Transverse ridge

Premolars

54

Do not cut across the ______ of the Upper ______.

Oblique Ridge

Permanent Molars

55

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

True

56

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

Caries

57

Caries spread _____ once past the DEJ

laterally

58

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

Decalcified Enamel

59

Amalgam outline form Converges, a Gold Inlay form ________.

Diverges

60

What 2 burs create Convergent Walls?

245

330

61

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

1.0 mm

1.2 mm

62

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

True

63

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

Fracture

64

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

Convenience

*place matrix band, avoid damaging adjacent teeth, carving

65

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

True

66

T/F
A slot preparation doesn't need a pulpal floor

True

67

What does the Summitt Design for a slot prep add?

Occlusal dovetails

(which are exaggerated extension grooves)

68

Diamond burs ______, and Carbide burs _____

abrade

chip

69

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 _______.

Left

Right

70

T/F
An open Proximal Contact is an automatic failure

True

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