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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

Alginate impression material is________________?

A Non-elastic impression material
B Thermoplastic impression material
C More mucostatic than ZOE
D Less mucostatic than ZOE
Correct Answer: Less mucostatic than ZOE

Syringe material is______________?

A High viscosity elastomer
B Medium viscosity elastomer
C Medium & low viscosity elastomer
D Low viscosity elastomer
Correct Answer: Low viscosity elastomer

The impression for a diagnostic cast of a partial edentulous mouth should be taken in_______________?

A Impression wax
B Modelling compound
C Hydro-colloid
D Hydro cal
Correct Answer: Hydro-colloid

Agar impression materials differ from alginate impression materials in that the former sets by_______________?

A Mechanical action of saliva
B Physical change
C Evolution
D Chemical change
Correct Answer: Physical change

Which material undergoes hysteresis ?

A Irreversible hydrocolloid
B Reversible hydrocolloid
C Impression plaster
D Metallic oxide paste
Correct Answer: Reversible hydrocolloid

The setting time of irreversible hydrocolloids can be decreased by_____________?

A Raising the temperature of water used for maxing
B Using excess water for maxing
C Lowering the temperature of water used for mixing
D None of the above
Correct Answer: Raising the temperature of water used for maxing

Rubber base impressions are poured immediately as they_______________?

A Continue to polymerize
B Become elastic
C Show imbibition and syneresis
D Show gelation
Correct Answer: Continue to polymerize

The most mucostatic impression material is_______________?

A Thin mix of plaster of paris
B Zinc oxide eugenol impression paste
C Free flowing wax
D Reversible hydrocolloids
Correct Answer: Thin mix of plaster of paris

The best way to remove a hydrocolloid impression from the patient’s mouth is____________?

A Slight rocking of the impression to disengage it from the undercut
B Wetting the periphery of the impression with moist cotton to break the peripheral seal
C Sudden jerking of the impression to prevent tearing
D Supporting the impression along with the tray to prevent disengaging of the tray alone
Correct Answer: Sudden jerking of the impression to prevent tearing

Palatal secretions affect the setting of all the impression materials except_______________?

A Silicone
B Agar-agar
C Impression paste
D Impression plaster
Correct Answer: Agar-agar
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