A. Hydrocolloids, silicones, polyether, polysulfide
B. Silicones, hydrocolloids, polyether, polysulfide
C. Polysulfide, hydrocolloids, silicones, polyether
D. Hydrocolloids, polyether, silicones, polysulfide
Related Mcqs:
- Tear strength for impression material is highest for__________?
A. Condensation silicone
B. Alginate
C. Polysulfide
D. Addition silicone - 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 - The impression materials with lowest viscosity is_____________?
A. Plaster of paris
B. Agar – agar
C. Zinc oxide eugenol
D. Elastomers - Materials which has high compressive strength and low tensile strength is classified with property of________________?
A. Ductility
B. Brittleness
C. Malleability
D. Resilient - 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 - Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?
A. Borax
B. Water
C. Sulfates
D. Carbonates - 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 - Palatal secretions affect the setting of all the impression materials except_______________?
A. Silicone
B. Agar-agar
C. Impression paste
D. Impression plaster
