Impression Materials

A. Improper application of pressure during impression making
B. Air incorporated during mixing
C. Too rapid polymerization
D. Presence of moisture in impression area

A. Plaster of paris
B. Agar – agar
C. Zinc oxide eugenol
D. Elastomers

A. Hydrocolloids, silicones, polyether, polysulfide
B. Silicones, hydrocolloids, polyether, polysulfide
C. Polysulfide, hydrocolloids, silicones, polyether
D. Hydrocolloids, polyether, silicones, polysulfide

A. Impression compound
B. Alginate
C. ZOE paste
D. Elastomer

A. Agar
B. Alginate
C. Elastomers
D. Impression compound

A. Ethyl alcohol
B. Glycol
C. Acetate
D. Propanolol

A. Zinc Sulphate & Zinc chloride
B. Zinc chloride & Eugenol
C. Zinc Sulphate & Eugenol
D. Glycerin

A. Polysulphide > polyether > Condensation silicone > Addition silicone
B. polyether > Condensation silicone > Polysulphide > Addition silicone
C. Addition silicone > polyether > Polysulphide > Condensation silicone
D. Addition silicone> Condensation silicone > Polysulphide > polyether

A. Syringe agar and chilled tray alginate
B. Syringe agar and tray agar
C. Syringe agar and impression compound
D. Chilled alginate and impression compound

A. Impression compound
B. Impression paste
C. Addition silicone
D. Alginate