A. Seen as water loss
B. Water absorption
C. Shrinkage
D. Gelation
0
Best material for duplicating cast is_______________?
0
The base paste of the condensation poly sillicone has a low molecular weight dimethyl siloxane with a terminal-group_______________?
A. Agar-agar
B. Alginate
C. Zinc oxide eugenol
D. Plaster of paris
0
Hysteresis in a hydrocolloid gel is______________?
A. Marcaptan group
B. Hydroxyl group
C. Silane group
D. Virryl group
0
All of the following can be used to slow down the setting of Zinc oxide eugenol impression paste EXCEPT_________________?
A. Moisture absorption
B. Temperature lag between gelation and liquefaction temperature
C. Phenomenon of conversion of gel into sol
D. All of the above
0
All of the following statements about Type II silicon impression material are true EXCEPT_______________?
A. Adding a small amount of glycerine
B. Adding a small amount of water
C. Altering the amounts of the two pastes used
D. Cooling mixing slab
0
The Zinc oxide-eugenol impression pastes harden by________________?
A. They evolve hydrogen when cast if they are not fully cured
B. They exhibit a very low setting shrinkage
C. They have a lower tear resistance than polysulphide rubbers
D. They set by condensation polymerisation
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