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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

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
Lenolin is added is ZOE paste to______________?
A Decrease flow
B Increase flow
C Accelerate reaction
D Decrease irritation due to eugenol
Correct Answer: Increase flow
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