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Chapter 37 Lab Procedures and Materials Flashcards | StudBud
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Chapter 37 Lab Procedures and Materials
Chapter 37 Lab Procedures and Materials
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Study material for Chapter 37-Pearson's Comprehensive Dental Assising
Flashcards
30 cards
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Practice quiz
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Host live
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Questions
30
Answers
1
Powder/liquid material used to fabricate custom trays.
VPS
polymer
acrylic
VLC
2
Impression trays are semi-critical instruments that must be ________ after each use.
dried
sterilized
disinfected
washed
3
Strongest gypsum product. Used in laboratory for fabricating cast restorations.
yellow stone
die stone
alginate
plaster
4
Custom tray material that must be kept from light exposure until ready to use.
VPS
VLC
acrylic
polymer
5
A diagnostic model has two parts; the art portion(base) and the _______ portion.
useful
tooth
gingival
anatomical
6
The _________ model should always be trimmed first.
maxillary
smallest
biggest
mandibular
7
Used for pouring models used for diagnostic purposes.
yellow stone
die stone
alginate
plaster
8
_____ products are used to create diagnostic cast models.
gypsum
elastomeric
alginate
all of these
9
Rotary machine used for grinding, trimming and polishing
model trimmer
lab handpiece
model trimmer
lathe
10
Machine used to move plaster or stone around when pouring cast models.
vibrator
model trimmer
vacuum former
lathe
11
OSHA regulation that sets guidelines to be followed in a dental laboratory.
Standard Precautions
Universal Precautions
Universal standards
Bloodborne Pathogens Standard
12
Before starting the model trimmer you must:
put on mask
all of these
pull back hair
put on safety glasses
13
_______ trays are fabricated for a specific patient to take a very accurate impression.
custom
triple
stock
plastic
14
Impression trays are categorized as ______- critical iintruments
semi
non
highly
barely
15
Position of the mandible when the teeth are biting fully together.
natural bite
normal occlusion
centric occlusion
bite registration
16
Common problems with custom trays:
all of these
borders too short
over extended peripheral borders
rough, sharp edges
17
Device designed to reproduce movements of the patient's mandibular arch in centric occlusion.
bite block
articulator
triple tray
simulator
18
Machine used for fabricating bleach trays, mouthguards and plastic stents.
vacuum former
lathe
model trimmer
curing oven
19
____ is used to extend the periphery of an impression tray when needed.
acrylic
border mold
wax
all of these
20
All brushes, ragwheels and lab burs should be _______ after each use.
sterilized
disposed of
disinfected
dried
21
A good model will have ______ clearly defined frenula.
four
two
three
one
22
The primary objective when pouring a model is to prevent _________?
air bubbles
distortion
none of these
thin base
23
To create an accurate model you must start with?
good mixing skills
an accurate impression
a good patient
yellow stone
24
Gypsum product used to create models for bleach trays, mouthguards and ortho appliances.
yellow stone
alginate
plaster
die stone
25
What should be placed between wax and custom tray material when making custom trays?
foil
space
separating liquid
foil or separating liquid
26
Dental impressions should be _______ before transferring them from the clinical treatment area.
disinfected
dried
sterilized
soaked
27
Artificial replacements for teeth and other oral structures.
all of these
provisionals
prophylactics
protheses
28
When using bulk packaged materials, you should always use ________ to prevent contamination.
unit dosing
all the material
single packs
all of the above
29
Mixing bowls and spatulas should be ________ after each use.
all of these
dried
washed
disinfected
30
Machine used to trim and contour gypsum cast models.
lathe
vacuum former
model trimmer
vibrator
