A. Difference in solubility of CaSo4 ½ H2O + CaSO4+ 2H2O
B. Reaction between CaSO4+ 2H2O and water
C. Nucleation and growth of CaSo4 ½ H2O crystals
D. Reaction between hemihydrate and hihydrate
Dental Materials
Dental Materials Mcqs for preparation. These Mcqs are helpful for Medical students. Dental Materials Multiple Choice Questions (MCQ) for entrance examinations and other competitive examinations for all Experienced, Freshers and Students.
A. Impression plaster
B. Class I stone / Hydrocal
C. Class II stone/Densite
D. Model plaster
A. Is wet calcined hemihydrate
B. Has porous and irregular crystals
C. Is a – hamihydrate
D. Has a W / P of 0.2
A. 0.05
B. 0.10
C. 0.15
D. 0.20
A. Chemical composition
B. Self life
C. Sharpe and size of particles
D. Solubility in water
A. Impressions
B. Casts
C. Die
D. Casts and Dies
A. Dry strength
B. Green strength
C. Water strength
D. Compressive strength
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
A. Plaster of paris
B. Soluble plaster
C. Anti – expansion solution
D. Die stones
A. Solubility
B. Shelf life
C. Chemical formula
D. Particle porosity
