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.Management Sciences
Category: Impression Materials
Rough and irregular surface produced on the impression is because of ?
A. Improper application of pressure during impression making
B. Air incorporated during mixing
C. Too rapid polymerization
D. Presence of moisture in impression area
The impression material used to record the prepared areas on abutment teeth is______________?
A. High viscosity elastomeric impression material
B. Medium viscosity elastomeric impression material
C. Low viscosity elastomeric impression material
D. None of the above
Which material is the most difficult to remove from the patients mouth ?
A. Metallic oxide paste
A. Silicone impression material
B. Reversible hydrocolloid
C. Impression plaster
Impression techniques are used for recording________________?
A. Oral mucosal tissues
B. Dental hard tissues
C. Oral mucosal tissues and dental hard tissues
D. None of the above
Putty wash technique_________________?
A. Light body and putty used at the same time
B. Putty used first and light body used second
C. Light body first and putty later
D. None of the above
K2SO4 in agar-agar is for_______________?
A. Accelerating the setting stage of gypsum
B. Increase strength
C. Give dimensional stability
D. None of the above
Which of the following impression materials is easy to pour and difficult to remove the stone cast from the impression ?
A. Addition polysilicone
B. Condensation polysilicone
C. Polyether
D. Polysulfide
Two in one stage impression materials include______________?
A. Zinc Oxide eugenol impression paste
B. Hydrocolloid impression material
C. Elastomeric impression material
D. All of the above
Name the accelerator used in Zinc oxide eugenol paste______________?
A. Olive oil
B. Linseed oil
C. Zinc acetate
D. All of these
Which of the following is correct glass transition temperature of Impression compound ?
A. 43.5°C
B. 39°C
C. 65°C
D. 100°C
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