A. Mercaptan
B. Silicone
C. Reversible hydrocolloid
D. A and B
Related Mcqs:
- Agar impression materials differ from alginate impression materials in that the former sets by_______________?
A. Mechanical action of saliva
B. Physical change
C. Evolution
D. Chemical change - 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 - Alginate impression material is similar to Agar-agar impression material in the following respect________________?
A. Gelation increase in both on increase in temperature
B. Mixing time is increased to reduce the setting time
C. Deformation during removal of impression occurs due to distortion of gel fibers
D. Both can be re-used for fresh impressions - Best impression material to be used for securing impression after crown preparation_______________?
A. Alginate
B. Agar
C. Elastome
D. Zno paste - The ranking of tear strength from the lowest to highest of all impression materials generally is as follows_______________?
A. Hydrocolloids, silicones, polyether, polysulfide
B. Silicones, hydrocolloids, polyether, polysulfide
C. Polysulfide, hydrocolloids, silicones, polyether
D. Hydrocolloids, polyether, silicones, polysulfide - The impression materials with lowest viscosity is_____________?
A. Plaster of paris
B. Agar – agar
C. Zinc oxide eugenol
D. Elastomers - 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 - Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?
A. Condensation silicone
B. Polyether
C. Polysulfide
D. Poly vinyl siloxane - Palatal secretions affect the setting of all the impression materials except_______________?
A. Silicone
B. Agar-agar
C. Impression paste
D. Impression plaster - The standard perforated tray for us with alginate impression materials may be brought to more customized contour by_______________?
A. Utility wax
B. Base plate wax
C. Beading wax
D. Boxing wax
