Powders of dental plaster and dental stone differ mainly in____________?
Correct answer: C. Particle porosity
- A. Solubility
- B. Shelf life
- C. Particle porosity
- D. Chemical formula
Explanation
Plaster and stone have the same basic calcium sulfate hemihydrate composition, but their particles differ in porosity because of their manufacturing methods. The more porous plaster particles need more water and produce a weaker set material.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Properties of Dental Materials
87 free Properties of Dental Materials MCQs from Dental Materials, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Dental Materials questions like this
Dental Materials is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Properties of Dental Materials questions
Balanced stone is dental stone_______________?
The strength of the gypsum specimen when the water in excess of that required for the hydrate of the hemihydrate is left in the specimen is called____________?
The main difference between dental stone and dental plaster is______________?
Beta hemihydrate particles absorb______________?
Type III Dental gypsum is__________________?
The product, which is obtained by calcining gypsum under steam pressure at 120-130°C or by dehydrating gypsum in the presence of sodium succinate is_______________?