
Quiz on Impression Materials in Dentistry
Authored by Eman Eman
Other
University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reactive ingredient in impression plaster?
Calcium sulfate β-hemihydrates
Potassium sulfate
Borax
Alizarin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a disadvantage of impression plaster?
Brittle and may fracture
Good dimensional stability
Easy to manipulate
Hydrophilic nature
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of impression material is used for preliminary impressions of edentulous arches?
Light body elastomer
Impression compound
ZOE impression paste
Alginate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a property of ideal impression materials?
Poor dimensional stability
Requires elaborate equipment for manipulation
Non-toxic and non-irritant
High viscosity before setting
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of using a separating medium with impression plaster?
To increase setting time
To prevent bonding of the cast to the impression
To improve dimensional stability
To enhance the taste
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which impression material is classified as an elastomer?
Alginate
Impression wax
Polysulfide
Impression plaster
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason for using tray adhesive with elastomers?
To ensure retention during impression taking
To enhance flow properties
To reduce setting time
To improve taste
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