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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Rinsing of the impression is important to________________?
A Remove excess impression material
B Remove saliva
C Hydrate the impression
D Accelerate the setting
Correct Answer: Remove saliva
Which is best material for RPD impression_______________?
A Impression plaster
B Irreversible hydrocolloid
C Reversible hydroollioid
D None of the above
Correct Answer: Irreversible hydrocolloid
Which of the following is not affected by saliva ?
A Impression plaster
B Impression paste
C Silicon impression material
D None of the above
Correct Answer: None of the above
Retarder in Zinc oxide eugenol is______________?
A CaCl2
B Zinc acetate
C Alcohol
D Glycerine
Correct Answer: Glycerine
The cross linking agent of polysulphide rubber base impression material is______________?
A Aromatic sulfonate esters
B Stannous octate
C Platinum salt catalyst
D Lead dioxide
Correct Answer: Lead dioxide
When making a polysulphide impression for a caste crown, custom trays are usually preferred over stock trays for all of the following reasons except_______________?
A Custom trays facilitate uniform contraction of impression material
B Custom trays require less impression material
C Stock trays may be short in the flange area
D Impressions made n the custom trays are easier to remove from the mouth
Correct Answer: Impressions made n the custom trays are easier to remove from the mouth
Name the accelerator used in Zinc oxide eugenol paste______________?
A Olive oil
B Linseed oil
C Zinc acetate
D All of these
Correct Answer: Zinc acetate
Linear contraction of elostomeric impression with passage of time is highest in______________?
A Addition silicone
B Polysulphide
C Polyetner
D Condensation silicone
Correct Answer: Condensation silicone
Which of the following is true about Agar hydrocolloid impression material ?
A Liquefies between 71 – 100°C
B Solidfies between 50 – 70°C
C Facilitates fabrication of metal dyes
D Cannot register fine surface details
Correct Answer: Liquefies between 71 – 100°C
Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?
A Borax
B Water
C Sulfates
D Carbonates
Correct Answer: Borax
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