WorksheetsCh 43 Amalgam Only
Total questions: 69
Worksheet time: 44mins
_____ is the process by which the resin material is changed from a pliable state into a hardened restoration.
Trituration
Adhesion
Polymerization
Non of the above
Check all that apply!
What are the three types of curing methods
Auto Cure
Oven Cure
Light Cure
Air Cure
Dual Cure
Check all that apply!
What are examples of direct restorative material
Amalgam
Ceramic Crown
Composite Resin
Glass Ionomer
Gold Alloy
Single-spill capsules
contain 600 mg of alloy.
are used for small restorations.
should be discarded immediately after use.
All of the above are correct.
Answers A & C
The process of setting of a material is correctly referred to as
gelling.
setting
curing.
hardening.
The instrument used to smooth the amalgam surface is
carvers
burnishers
condensers
cotton forceps
Which restorative materials are not esthetically pleasing?
Composite
Porcelain
Amalgam
All of the above
Both A & C
Calcium hydroxide
cannot be placed under direct composite resins because it will inhibit polymerization.
stimulates the production of reparative dentin.
functions as a thick base to support extensive restorations.
consists of a resin in an organic solvent.
Which restorative material would be used primarily on the molars and premolars
Composite
Amalgam
Ceramic
Both A & B
All of the above
A(n) _____ is defined as a mixture of two or more metals
alloy
amalgam
ceramic
porcelain
Dental restorative materials that are applied while pliable to a tooth or teeth and can be adapted, carved, and finished are classified as
indirect restorations
direct restorations
crowns and bridges
implants
The silver filling material used for more than 150 years to restore primary and permanent teeth is called
amalgam
composite
glass ionomer
acrylic resin
_____ is added to dental amalgam alloy powder to suppress oxidation
silver
tin
copper
zinc
the dental restorations created in the laboratory by the dental lab technician are classified as _____ restorations
direct
indirect
provisional
amalgam
The term restorative describes the ability to
remove disease
restore function
be esthetic
remove disease and restore function
Before they can be marketed, new dental materials must undergo strict evaluation by the
FDA
ADA
MDA
ADAA
Criteria for a new restorative material states that the material must be
ab le to protect the tooth and tissues of the oral cavity
easily formed and placed restoring comfort, function, and contour
not capable of irritating tissues of being poisonous
all of these
Materials used to restore posterior teeth must be cpable of withstanding _____ psi.
10K
15K
18K
28k
Chewing is an example of _____ stress
compressive
tensile
shear
all of these
Biting off a piece of taffy is an example of _____ stress
compressive
tensile
shear
all of these
Which is not true of microleakage?
it is caused by different rates of expansion and contraction of tooth structure and restorative material
it is the minute space between the restoration and tooth structure
it occurs rarely
it allows f;luid and debris to enter between the restoration and tooth.
_____ occurs when a metal restoration is touched by a fork (for example).
microleakage
galvanic action
sheer stress
corrosion
Corrosion of metal restorative materials
is a reaction that occurs when metal is exposed to products such as temperature, humidity, and saline
is easily removed with polishing agents
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
does not occur
Retention holds a material in place and seals the structures together
true
false
The process of setting of a material is correctly referred to as
gelling
hardening
curing
triturating
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
auto-cured materials
light-cured materials
dual-cured materials
All of the following are advantages of amalgam over composite as a restorative material except
cost
moisture control
esthetics
strength
All the following statements about nonmercury alloys are true except they
are not sensitive to moisture
are placed after a resin liner
require the application of a sealant over the restoration
all of these are true
The ADA and the National Institute of Health-Nations Administration _____ the use of amalgam as a posterior restorative material
discourages
supports
forbids
has no opinion on
To ensure an accurate ratio of allow and mercury, the best protocol to follow is to
use premeasured capsules
measure accuragtely
reuse capsules
do all of these
Single-spill capsules
contains 600 mg of allow
are used for small restorations
should be discarded immediately after use
all of these are correct
The properly triturated amalgam mix should
be a hard mass
contain dry particles
be a soft, pliable mass
separate when packed
The purpose of packing the amalgam in the cavity preparation is to ____ it
amalgamate
condense
carve
triturate
Mixing alloy and mercury together to form a mass is called
amalgamation
trituration
condensing
both amalgamation and trituration
The instrument used to smooth the amalgam surface is
a condenser
a burnisher
a carver
articulating paper
The instrument used to push amalgam into a cavity prep is called a
burnisher
condenser
packer
plugger
condenser, packer, or plugger
To adjust the occlusion on a recently placed amalgam, the patient should be instructed to bite _____ on the articulating paper
firmly
and rotate repeatedly
lightly
and open and close again and again
One difference in the cavity preparation of amalgam vs composite is that
more retention is cut into the prep for composite
amalgam requires the use of a bonding system
composites are more compatible with most dental materials used for bases
composites require the use of a bonding system.
The mercury to alloy ratio is about
80/20
50/50
70/30
Would you rather have amalgam or composite in your mouth?
Amalgam
Composite
Which tooth will have more problems with moisture control #3 or #30
#3
#30
Check all the teeth amalgam would be the best choice for a restoration
#8 MIL
#31 MOD
#20MO
#11 lingual Pit
#15 DOL
What particle shape must be triturated the longest
Spherical
Admix
Irregular
Condensing helps bring the mercury rich layer of amalgam to the top.
Type True or False
(a)
Which amalgam is best for eliminating creep?
High copper amalgam
Low copper amalgam
Do you feel amalgam is harmful to the patient?
Yes
No
Not sure
Can mercury spills be cleaned up with cotton rolls or paper towels?
Yes
No
Which is most dangerous to the clinician, the vapor or the absorption through the skin?
Absorption
Vapor
How long does the assistant and the operator have to get the amalgam condensed into the prep
3-5 minutes
8-10 minutes
10-20 minutes
24 hours
Which burnisher starts the carving process...this is a transitional burnisher?
Football
Ball
Acorn
T-Ball
How long until the amalgam is completely set and can be polished?
(a)
which classification needs a matrix band?
Cl I
Cl II
Cl V
What instrument comes after the amalgam carrier on the tray set-up?
Condenser
Burnisher
Carver
Articulating paper holder
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