M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact
Jobs
Blog

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Medical Science Mcqs 5254 MCQs [All-Courses]

thumb

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

Greening occuring when porcelains are fired on silver free alloys may be attributed to________________?

A Vaporization of silver from the walls of contaminated furnaces
B Surface diffusion of silver from the marginal metal
C More rapid silver diffusion in sodium containing glass
D Silver ionization by porcelains with high oxygen potential
Correct Answer: Vaporization of silver from the walls of contaminated furnaces

Compared with dental alloys, CERAMICS show____________________?

A High ductility
B High hardness
C Low esthetic value
D Susceptibility to brittle fracture
Correct Answer: Susceptibility to brittle fracture

Chemical method of strengthening porcelain involves_________________?

A Exchange of aluminium and sodium ions
B Exchange of aluminium and potassium ions
C Exchange of sodium and potassium ions
D None of the above
Correct Answer: Exchange of sodium and potassium ions

The first porcelain tooth material was introduced by______________?

A DeChemant
B Ash
C Plateau
D McClean
Correct Answer: DeChemant

Which of the following bur is used in the preparation of cavity restored with porcelain fused to metal ?

A Carbide bur
B Diamond bur
C Stainless steel bur
D Diamond but for porcelain and carbide bur for metal
Correct Answer: Diamond but for porcelain and carbide bur for metal

Quartz is Dental porcelain is______________?

A Strengthener
B Binder
C Pigment
D Crack minimzer
Correct Answer: Strengthener

In method of firing: A shorter firing period at a higher temperature is considered better_______________?

A A large time period at a lower temperature is preferred
B A long firing period at a very high temperature is preferred
C A short firing period at a very low temperature is preferred
D none of these
Correct Answer: A long firing period at a very high temperature is preferred

Porcelain binds to metal in PFM crown by_________________?

A Metallic bind
B Transparency
C Chemical bond
D B and C
Correct Answer: B and C

Dicor restoration is_______________?

A Two coloured restorations
B Heat pressed ceramics
C Castabel ceramic
D None of the above
Correct Answer: Castabel ceramic

Opaque porcelain________________?

A Is Feldspathic glass
B Contains opacifier like zirconium and titanium oxide
C Not used to mask the colour of the cement used in placing of restoration
D Used to produce the characteristic translucence, which is an inherent aspect of the incisal edge in natural teeth
Correct Answer: Contains opacifier like zirconium and titanium oxide
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.