Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?
A. Borax
B. Water
C. Sulfates
D. Carbonates
A. Borax
B. Water
C. Sulfates
D. Carbonates
A. 100 ml of water to 60 gms of powder
B. 40 ml of water to 40 gms of powder
C. 40 ml of water to 15 gms of powder
D. 15 ml of water to 40 gms of powder
The water powder ratio of alginate is______________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Alginate
B. Agar
C. Elastome
D. Zno paste
A. 43.5°C
B. 39°C
C. 65°C
D. 100°C
Which of the following is correct glass transition temperature of Impression compound ? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Air incorporated during mixing
B. Improper application of pressure during impression making
C. Presence of excessive saliva in impression area
D. Due to improper ratio of polymer and monomer
Rough and irregular surface produced on the impression is because of_______________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. 4%
B. 6%
C. 8%
D. 10%
Minimum flow of Type-I impression compound at mouth temperature is___________________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Unpleasant odor and taste
B. Low accuracy
C. Least permanent deformation
D. Highest curing shrinkage
Polysulfide material is routinely not recommended because of_______________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Hysterisis
B. Imbibition
C. Recrytallisation
D. Syneresis
Hydrocolloid material, show all except______________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Zinc oxide eugenol
B. Impression compound
C. Alginate
D. Plaster of paris
Impression material that Do NOT harden by chemical reaction_______________? Read More »
Dental Materials, Impression Materials, Medical Mcqs A. Light body and putty used at the same time
B. Putty used first and light body used second
C. Light body first and putty later
D. None of the above
Putty wash technique_________________? Read More »
Dental Materials, Impression Materials, Medical Mcqs