Dental Ceramics & Miscellaneous MCQs

Option A: Transformation toughening

Option B: Dispersion of crystalline phase

Option C: Inducing residual compressive strength

Option D: All of the above

Correct Answer: Inducing residual compressive strength ✔

Option A: Boric oxide

Option B: In vacuum

Option C: For long period

Option D: Under pressure

Correct Answer: In vacuum ✔

Option A: High temperature during glazing

Option B: Low temperature during glazing

Option C: Improper condensation

Option D: High firing temperature

Correct Answer: High temperature during glazing ✔

Option A: Rate of arriving at firing temperature

Option B: Uniformity of particle size

Option C: Shape and size of particle

Option D: Type of investment used

Correct Answer: Shape and size of particle ✔

Option A: In open air

Option B: Under air compression

Option C: When several layer are fired simultaneously

Option D: Under minimum pressure

Correct Answer: Under air compression ✔

Option A: Thoroughness of condensation

Option B: Rapidity of firing

Option C: High firing temperature

Option D: All of the above

Correct Answer: Thoroughness of condensation ✔

Option A: Feldspar

Option B: Kaolin

Option C: Quartz

Option D: Clay

Correct Answer: Feldspar ✔

Option A: Highly polished porcelain

Option B: Highly polished acrylic

Option C: Highly glazed porcelain

Option D: Highly polished metal

Correct Answer: Highly glazed porcelain ✔

Option A: Rubber

Option B: Plastic

Option C: Organic substances

Option D: Glass

Correct Answer: Glass ✔

Option A: Colour matching

Option B: Transparency

Option C: Opacity

Option D: None of the above

Correct Answer: Colour matching ✔

Option A: Same as porcelain

Option B: More than porcelain

Option C: Less than porcelain

Option D: More than or equal to porcelain but not less

Correct Answer: More than or equal to porcelain but not less ✔

Option A: Cold stage bisque

Option B: Low bisque

Option C: Medium bisque

Option D: High bisque

Correct Answer: Cold stage bisque ✔

Option A: High Bisque stage

Option B: Low Bisque stage

Option C: Medium Bisque stage

Option D: Fusion stage

Correct Answer: Medium Bisque stage ✔

Option A: Sand

Option B: Silicon arbide

Option C: Diamond

Option D: Aluminum oxide

Correct Answer: Diamond ✔

Option A: Chemically cure resin

Option B: Heat curve resin

Option C: Light cure resin

Option D: Vinyl resin

Correct Answer: Chemically cure resin ✔

Option A: dispersed porcelain

Option B: Glazed porcelain

Option C: aluminium porcelain

Option D: All of the above

Correct Answer: aluminium porcelain ✔

Option A: High fusion expansion

Option B: High fusion temperature

Option C: Linear coefficient of thermal expansion less than that of metal

Option D: Linear coefficient of thermal expansion more than that of metal

Correct Answer: Linear coefficient of thermal expansion less than that of metal ✔

Option A: 51 to 54 degree F

Option B: 51 to 54 degree C

Option C: 70 to 75 degree F

Option D: 70 to 75 degree C

Correct Answer: 51 to 54 degree C ✔

Option A: Emery

Option B: Garnet

Option C: Pumice

Option D: Rouge

Correct Answer: Rouge ✔

Option A: Methyl and ethyl mercury

Option B: Mercury vapour

Option C: Inorganic mercury forms

Option D: Mercury sulphide

Correct Answer: Methyl and ethyl mercury ✔

Option A: Heat pressing

Option B: Machining

Option C: Sintering

Option D: Slip casting

Correct Answer: Sintering ✔

Option A: high fusion expansion

Option B: high fusion temperature

Option C: linear coefficient of thermal expansion less than but close to that of metal

Option D: Linear coefficient of thermal expansion greater than, but close to that of the metal

Correct Answer: linear coefficient of thermal expansion less than but close to that of metal ✔

Option A: Blinding

Option B: Buffing

Option C: Dressing

Option D: Truing

Correct Answer: Blinding ✔

Option A: QTH

Option B: PAC

Option C: LED

Option D: Argon lasers

Correct Answer: Argon lasers ✔

Option A: 1056

Option B: 1560

Option C: 1668

Option D: 1886

Correct Answer: 1668 ✔

Option A: Ionic copper

Option B: Copper cyanide

Option C: Silver cyanide

Option D: Acidic copper sulphate

Correct Answer: Acidic copper sulphate ✔

Option A: Vaporization of silver from the walls of contaminated furnaces

Option B: Surface diffusion of silver from the marginal metal

Option C: More rapid silver diffusion in sodium containing glass

Option D: Silver ionization by porcelains with high oxygen potential

Correct Answer: Vaporization of silver from the walls of contaminated furnaces ✔

Option A: High ductility

Option B: High hardness

Option C: Low esthetic value

Option D: Susceptibility to brittle fracture

Correct Answer: Susceptibility to brittle fracture ✔

Option A: Exchange of aluminium and sodium ions

Option B: Exchange of aluminium and potassium ions

Option C: Exchange of sodium and potassium ions

Option D: None of the above

Correct Answer: Exchange of sodium and potassium ions ✔

Option A: DeChemant

Option B: Ash

Option C: Plateau

Option D: McClean

Correct Answer: DeChemant ✔

Option A: Carbide bur

Option B: Diamond bur

Option C: Stainless steel bur

Option D: Diamond but for porcelain and carbide bur for metal

Correct Answer: Diamond but for porcelain and carbide bur for metal ✔

Option A: Strengthener

Option B: Binder

Option C: Pigment

Option D: Crack minimzer

Correct Answer: Strengthener ✔

Option A: A large time period at a lower temperature is preferred

Option B: A long firing period at a very high temperature is preferred

Option C: A short firing period at a very low temperature is preferred

Option D: none of these

Correct Answer: A long firing period at a very high temperature is preferred ✔

Option A: Metallic bind

Option B: Transparency

Option C: Chemical bond

Option D: B and C

Correct Answer: B and C ✔

Option A: Two coloured restorations

Option B: Heat pressed ceramics

Option C: Castabel ceramic

Option D: None of the above

Correct Answer: Castabel ceramic ✔

Option A: Is Feldspathic glass

Option B: Contains opacifier like zirconium and titanium oxide

Option C: Not used to mask the colour of the cement used in placing of restoration

Option 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 ✔

Option A: Alumina

Option B: Silica

Option C: Kaolin

Option D: Boric oxide

Correct Answer: Boric oxide ✔

Option A: Silica

Option B: Feldspar

Option C: Calcium carbonate

Option D: Amorphous material

Correct Answer: Amorphous material ✔

Option A: Cerestore

Option B: Decor MGC

Option C: Infusium

Option D: Leucite

Correct Answer: Decor MGC ✔

Option A: Translucency

Option B: Refractive optics

Option C: Metamerism

Option D: Opacification

Correct Answer: Metamerism ✔

Option A: Rubber matrix

Option B: Glass

Option C: Plastic

Option D: Resin matrix

Correct Answer: Glass ✔

Option A: Shape and size of particle

Option B: Uniform distribution of particle size

Option C: Number of particles

Option D: None of the above

Correct Answer: Shape and size of particle ✔

Option A: Boric oxide

Option B: Copper oxide

Option C: Silica

Option D: Titanium oxide

Correct Answer: Titanium oxide ✔

Option A: Have a higher coefficient of thermal expansion than acrylic teeth:

Option B: Have a lower abrasion resistance than enamel

Option C: Should be used where the inter dental clearance is small

Option D: Have a higher abrasion resistance than gold

Correct Answer: Have a higher abrasion resistance than gold ✔