A. Solubility
B. Shelf life
C. Chemical formula
D. Particle porosity
Related Mcqs:
- The main difference between dental stone and dental plaster is______________?
A. Chemical composition
B. Self life
C. Sharpe and size of particles
D. Solubility in water - Water powder ratio of dental stone and plaster is respectively_________________?
A. 0.28 and 0.6
B. 0.6 and 0.28
C. 0.6 and 3.2
D. 0.28 and 0.98 - The main ingredient in dental plaster in_______________?
A. Calcium sulphate hemihydrate
B. Calcium phosphate
C. Calcium anhydrate
D. Calcium sulphate dihydrate - Balanced stone is dental stone_______________?
A. Which undergoes rapid expansion
B. In which accelerators or retarders have been added according to need
C. In which amount of water of hydration is controlled
D. In which the crystals are all of uniform size - High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?
A. Have less marginal breakdown
B. Are workable at lower Hg-alloy ratio
C. Have a higher ratio of tensile to compressive strength
D. Have less resistance to tarnish and corrosion - The American dental association (ADA) specification number for non-aqueous elastomeric dental impression material is______________?
A. 19
B. 20
C. 21
D. 26 - Bone marrow stem cells differ from differ from differentiated progenitor stem cells in what respect ?
A. Provide differentiated terminal cells
B. Reconstitution of Bone marrow
C. Formation of the ovum
D. Act as a repair system for the body - Mercury intoxication in dental office mainly results from____________?
A. Direct contact with the mercury
B. Inhalation of mercury vapours
C. Ingestion of mercury
D. None of the above - Model plaster (white) used to cast study models before mixing with water, is largely composed of____________?
A. CaO
B. CaCO3
C. (CaSO4)2-½H2O
D. CaSO4-2H2O - Impression plaster containing potato starch is called______________?
A. Plaster of paris
B. Soluble plaster
C. Anti – expansion solution
D. Die stones
