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Ch 43 Amalgam Only

Total questions: 69

Worksheet time: 44mins

Name
Class
Date
1.

_____ is the process by which the resin material is changed from a pliable state into a hardened restoration.

a)

Trituration

b)

Adhesion

c)

Polymerization

d)

Non of the above

2.

Check all that apply!

What are the three types of curing methods

a)

Auto Cure

b)

Oven Cure

c)

Light Cure

d)

Air Cure

e)

Dual Cure

3.

Check all that apply!

What are examples of direct restorative material

a)

Amalgam

b)

Ceramic Crown

c)

Composite Resin

d)

Glass Ionomer

e)

Gold Alloy

4.

Single-spill capsules

a)

contain 600 mg of alloy.

b)

are used for small restorations.

c)

should be discarded immediately after use.

d)

All of the above are correct.

e)

Answers A & C

5.

The process of setting of a material is correctly referred to as

a)

gelling.

b)

setting

c)

curing.

d)

hardening.

6.

The instrument used to smooth the amalgam surface is

a)

carvers

b)

burnishers

c)

condensers

d)

cotton forceps

7.

Which restorative materials are not esthetically pleasing?

a)

Composite

b)

Porcelain

c)

Amalgam

d)

All of the above

e)

Both A & C

8.

Calcium hydroxide

a)

cannot be placed under direct composite resins because it will inhibit polymerization.

b)

stimulates the production of reparative dentin.

c)

functions as a thick base to support extensive restorations.

d)

consists of a resin in an organic solvent.

9.

Which restorative material would be used primarily on the molars and premolars

a)

Composite

b)

Amalgam

c)

Ceramic

d)

Both A & B

e)

All of the above

10.

A(n) _____ is defined as a mixture of two or more metals

a)

alloy

b)

amalgam

c)

ceramic

d)

porcelain

11.

Dental restorative materials that are applied while pliable to a tooth or teeth and can be adapted, carved, and finished are classified as

a)

indirect restorations

b)

direct restorations

c)

crowns and bridges

d)

implants

12.

The silver filling material used for more than 150 years to restore primary and permanent teeth is called

a)

amalgam

b)

composite

c)

glass ionomer

d)

acrylic resin

13.

_____ is added to dental amalgam alloy powder to suppress oxidation

a)

silver

b)

tin

c)

copper

d)

zinc

14.

the dental restorations created in the laboratory by the dental lab technician are classified as _____ restorations

a)

direct

b)

indirect

c)

provisional

d)

amalgam

15.

The term restorative describes the ability to

a)

remove disease

b)

restore function

c)

be esthetic

d)

remove disease and restore function

16.

Before they can be marketed, new dental materials must undergo strict evaluation by the

a)

FDA

b)

ADA

c)

MDA

d)

ADAA

17.

Criteria for a new restorative material states that the material must be

a)

ab le to protect the tooth and tissues of the oral cavity

b)

easily formed and placed restoring comfort, function, and contour

c)

not capable of irritating tissues of being poisonous

d)

all of these

18.

Materials used to restore posterior teeth must be cpable of withstanding _____ psi.

a)

10K

b)

15K

c)

18K

d)

28k

19.

Chewing is an example of _____ stress

a)

compressive

b)

tensile

c)

shear

d)

all of these

20.

Biting off a piece of taffy is an example of _____ stress

a)

compressive

b)

tensile

c)

shear

d)

all of these

21.

Which is not true of microleakage?

a)

it is caused by different rates of expansion and contraction of tooth structure and restorative material

b)

it is the minute space between the restoration and tooth structure

c)

it occurs rarely

d)

it allows f;luid and debris to enter between the restoration and tooth.

22.

_____ occurs when a metal restoration is touched by a fork (for example).

a)

microleakage

b)

galvanic action

c)

sheer stress

d)

corrosion

23.

Corrosion of metal restorative materials

a)

is a reaction that occurs when metal is exposed to products such as temperature, humidity, and saline

b)

is easily removed with polishing agents

c)

is both a reaction that occurs when metal is exposed to products such as temperature, humidity, and saline and
is easily removed with polishing agents


d)

does not occur

24.

Retention holds a material in place and seals the structures together

a)

true

b)

false

25.

The process of setting of a material is correctly referred to as

a)

gelling

b)

hardening

c)

curing

d)

triturating

26.

The curing process in which it is the most critical that the materials are mixed and placed within the working and setting times is with

a)

auto-cured materials

b)

light-cured materials

c)

dual-cured materials

27.

All of the following are advantages of amalgam over composite as a restorative material except

a)

cost

b)

moisture control

c)

esthetics

d)

strength

28.

All the following statements about nonmercury alloys are true except they

a)

are not sensitive to moisture

b)

are placed after a resin liner

c)

require the application of a sealant over the restoration

d)

all of these are true

29.

The ADA and the National Institute of Health-Nations Administration _____ the use of amalgam as a posterior restorative material

a)

discourages

b)

supports

c)

forbids

d)

has no opinion on

30.

To ensure an accurate ratio of allow and mercury, the best protocol to follow is to

a)

use premeasured capsules

b)

measure accuragtely

c)

reuse capsules

d)

do all of these

31.

Single-spill capsules

a)

contains 600 mg of allow

b)

are used for small restorations

c)

should be discarded immediately after use

d)

all of these are correct

32.

The properly triturated amalgam mix should

a)

be a hard mass

b)

contain dry particles

c)

be a soft, pliable mass

d)

separate when packed

33.

The purpose of packing the amalgam in the cavity preparation is to ____ it

a)

amalgamate

b)

condense

c)

carve

d)

triturate

34.

Mixing alloy and mercury together to form a mass is called

a)

amalgamation

b)

trituration

c)

condensing

d)

both amalgamation and trituration

35.

The instrument used to smooth the amalgam surface is

a)

a condenser

b)

a burnisher

c)

a carver

d)

articulating paper

36.

The instrument used to push amalgam into a cavity prep is called a

a)

burnisher

b)

condenser

c)

packer

d)

plugger

e)

condenser, packer, or plugger

37.

To adjust the occlusion on a recently placed amalgam, the patient should be instructed to bite _____ on the articulating paper

a)

firmly

b)

and rotate repeatedly

c)

lightly

d)

and open and close again and again

38.

One difference in the cavity preparation of amalgam vs composite is that

a)

more retention is cut into the prep for composite

b)

amalgam requires the use of a bonding system

c)

composites are more compatible with most dental materials used for bases

d)

composites require the use of a bonding system.

39.

The mercury to alloy ratio is about

a)

80/20

b)

50/50

c)

70/30

40.

Would you rather have amalgam or composite in your mouth?

a)

Amalgam

b)

Composite

41.

Which tooth will have more problems with moisture control #3 or #30

a)

#3

b)

#30

42.

Check all the teeth amalgam would be the best choice for a restoration

a)

#8 MIL

b)

#31 MOD

c)

#20MO

d)

#11 lingual Pit

e)

#15 DOL

43.

What particle shape must be triturated the longest

a)

Spherical

b)

Admix

c)

Irregular

44.

Condensing helps bring the mercury rich layer of amalgam to the top.

Type True or False

(a)  

45.

Which amalgam is best for eliminating creep?

a)

High copper amalgam

b)

Low copper amalgam

46.

Do you feel amalgam is harmful to the patient?

a)

Yes

b)

No

c)

Not sure

47.

Can mercury spills be cleaned up with cotton rolls or paper towels?

a)

Yes

b)

No

48.

Which is most dangerous to the clinician, the vapor or the absorption through the skin?

a)

Absorption

b)

Vapor

49.

How long does the assistant and the operator have to get the amalgam condensed into the prep

a)

3-5 minutes

b)

8-10 minutes

c)

10-20 minutes

d)

24 hours

50.

Which burnisher starts the carving process...this is a transitional burnisher?

a)

Football

b)

Ball

c)

Acorn

d)

T-Ball

51.

How long until the amalgam is completely set and can be polished?

(a)  

52.

which classification needs a matrix band?

a)

Cl I

b)

Cl II

c)

Cl V

53.

What instrument comes after the amalgam carrier on the tray set-up?

a)

Condenser

b)

Burnisher

c)

Carver

d)

Articulating paper holder

54.

what is this instrument?

(a)  

55.

what is this instrument?

(a)  

56.

what is this instrument?

(a)  

57.

what is this instrument?

(a)  

58.

what is this instrument?

(a)  

59.

what is this instrument?

(a)  

60.

what is this instrument?

(a)  

61.

what is this instrument?

(a)  

62.

what is this instrument?

(a)  

63.

what is this instrument?

(a)  

64.

what is this instrument?

(a)  

65.

what is this instrument?

(a)  

66.

what is this instrument?

(a)  

67.

what is this instrument?

(a)  

68.

what is this instrument?

(a)  

69.

what is this instrument?

(a)