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Dental Materials

All of the following statements about cast cobalt alloy are true EXCEPT_____________?

Dental Materials, Medical Mcqs, Metallurgy /
All of the following statements about cast cobalt alloy are true EXCEPT_____________?

A. They have a modulus of elasticity twice that of gold alloys
B. They are more rigid than gold alloys
C. They have higher ductility than gold alloys
D. They have a lower proportional limit than gold alloys

All of the following statements about cast cobalt alloy are true EXCEPT_____________? Read More »

Dental Materials, Medical Mcqs, Metallurgy

All of the following statements about an alginate impression are EXCEPT________________?

Dental Materials, Impression Materials, Medical Mcqs /
All of the following statements about an alginate impression are EXCEPT________________?

A. It should be rapidly displaced from the mouth
B. It may exhibit fluid exudates on the surface as a result of imbibition of water
C. It will take up water and expand if kept wet
D. It will shrink as a result of syneresis

All of the following statements about an alginate impression are EXCEPT________________? Read More »

Dental Materials, Impression Materials, Medical Mcqs

The impression material used to record the prepared areas on abutment teeth is______________?

Dental Materials, Impression Materials, Medical Mcqs /
The impression material used to record the prepared areas on abutment teeth is______________?

A. High viscosity elastomeric impression material
B. Medium viscosity elastomeric impression material
C. Low viscosity elastomeric impression material
D. None of the above

The impression material used to record the prepared areas on abutment teeth is______________? Read More »

Dental Materials, Impression Materials, Medical Mcqs