Impression Materials

A. Alginate
B. Zinc oxide-eugenol
C. Agar-agar
D. Impression compound

A. Trisodium phosphate reacts with sodium alginate
B. Trisodium phosphate reacts with calcium sulphate
C. Colloidal changes to sol
D. Material in contact with soft tissues sets last

A. Accelerating the setting stage of gypsum
B. Increase strength
C. Give dimensional stability
D. None of the above

A. Impression plaster
B. Impression paste
C. Alginate
D. Rubber base impression material

A. polyether polymer
B. Colloidal silica
C. Glycol ether
D. Di-vinyl poly (dimethyl siloxane)

A. Concentration of filler and plasticizer
B. Percentage composition by weight of water
C. Concentration of potassium sulphate
D. Temperature

A. Sol
B. Gel
C. Hydrocolloid
D. Colloid

A. Hydrocolloids
B. Elastomers
C. Zinc oxide eugenol
D. Plaster of paris

A. Has dimensional stability
B. Does not adhere to tissues
C. Is easy manipulation
D. Does not require special trays

A. Remove excess impression material
B. Remove saliva
C. Hydrate the impression
D. Accelerate the setting