The FALSE answers about hydrocoloids are:
Dental materials

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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Are elastic materials
The agar-agar impression materials are irreversible hydrocolloids
Are dimensionally unstable
The alginates are reversible hydrocolloids
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The correct answers about elastomers are:
Are rubber like materials
Are reversible
Are dimensional stable
Polysilicones are not elastomers
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Impression materials are:
Used in prosthodontics
Used in endodontics
Restorative dental materials
Auxiliary materials
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The impression materials are used to:
Cover an empty space
Register the forms and the relationships of teeth
Reproduce the forms and the relationships of teeth
Al the answers are correct
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*The impression materials:
Cannot be ideal
Must be nonpoisonous.
Must be nontoxic
All the answers are corect
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The ideal requirements of the impression materials are:
Low viscosity
Chemically inert in oral conditions
The taste and odour of it are not important
Low thermal conductivity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*The FALSE answer about the impression materials is:
The waxes and the compounds can be used as imprrssion materials
Zinc oxide eugenol is not an impression material
Alginates are Hydrocolloids
Can be elastic and nonelastic
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