Medical MCQs

Option A: Alveolar bone proper surrounds the root and gives attachment to fibres of periodontal ligament

Option B: supporting alveolar bone surrounds the alveolar bone proper and supports the socket

Option C: The cortical plates are thinner in maxilla than in mandible

Option D: They are thickest in anterior portion of jaw

Correct Answer: They are thickest in anterior portion of jaw ✔

Option A: Pulpal pressure is highest among body tissues

Option B: Majority of nerve that enter the pulp are non myelinated and are sympathetic in nature

Option C: Plexus of Rashkow or parietal layers of nerves is formed by network of peripheral axons located adjacent to cell rich zone

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Free denticles are entirely surrounded by pulp tissue(free of dentin)

Option B: Embedded denticles are entirely surrounded by dentin (embedded in dentin)

Option C: Attached denticles are partly fused with dentin

Option D: False denticles contains many dentinal tubules

Correct Answer: False denticles contains many dentinal tubules ✔

Option A: Fibronectin helps in attachment of fibroblasts to collagen

Option B: Cementicles are found in periodontal ligament of order individuals

Option C: The large nerve fibres are myelinated and are concerned with discerment of touch

Option D: The small nerve fibres may or may not be myelinated and are concerned with discrement of pain

Correct Answer: All of the above ✔

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 ✔

Option A: Alumino silicate powder and phosphoric acid

Option B: Aluminosillicate powder and polyacrylate

Option C: Zinc oxide powder and phosphoric acid

Option D: Zinc oxide powder and polyacrylate liquid

Correct Answer: Aluminosillicate powder and polyacrylate ✔

Option A: 15 microns

Option B: 25 microns

Option C: 50 microns

Option D: 100 microns

Correct Answer: 25 microns ✔

Option A: Polyacrylic acid is liquid

Option B: Chemical bond to tooth structure

Option C: Chelation

Option D: Substitution o eugenol by EBA to increase strength of cement

Correct Answer: Chelation ✔

Option A: Zinc acetate

Option B: Barium sulphate

Option C: Zinc sulphate

Option D: Barium chloride

Correct Answer: Zinc acetate ✔

Option A: 3-4

Option B: 4-5

Option C: 6-7

Option D: 7-8

Correct Answer: 6-7 ✔

Option A: Zinc phosphate

Option B: Silicate

Option C: Glass ionomer

Option D: Polycarboxylate

Correct Answer: Silicate ✔

Option A: 5

Option B: 7

Option C: 8

Option D: 1.7

Correct Answer: 7 ✔

Option A: Glycerin-water solution

Option B: Cement liquid

Option C: Alcohol

Option D: Only water

Correct Answer: Glycerin-water solution ✔

Option A: Increased in the ratio of powder to liquid

Option B: Diluting the liquid with water

Option C: Increase the addition of powder to liquid

Option D: Decrease the addition of powder to liquid

Correct Answer: Decrease the addition of powder to liquid ✔

Option A: 20-40μ

Option B: 10-20μ

Option C: 60-80μ

Option D: 1-2μ

Correct Answer: 20-40μ ✔

Option A: Good compressive strength

Option B: Film thickness

Option C: Lack of irritation

Option D: Low solubility

Correct Answer: Film thickness ✔

Option A: GIC

Option B: Copper cement

Option C: Zinc phosphate cement

Option D: Zinc oxide eugenol cement

Correct Answer: Zinc oxide eugenol cement ✔

Option A: Zinc oxide

Option B: Phosphoric acid

Option C: Zinc

Option D: None of the above

Correct Answer: Zinc oxide ✔

Option A: Temporary restoration

Option B: Leuting

Option C: Permanent restoration

Option D: Die material

Correct Answer: Leuting ✔

Option A: mm

Option B: 1.5 mm

Option C: mm

Option D: 2.5 mm

Correct Answer: mm ✔

Option A: Liquid powder ratio

Option B: Temperature of mixing stab

Option C: Speed of mixing

Option D: Addition of few drops of water

Correct Answer: Liquid powder ratio ✔

Option A: Is irritating

Option B: Encourages pulpal fibrosis

Option C: Is sedating

Option D: Has no effect

Correct Answer: Is sedating ✔

Option A: Zinc phosphate

Option B: Zinc oxide eugenol

Option C: Gutta-percha

Option D: Resin

Correct Answer: Zinc oxide eugenol ✔

Option A: Silicate cement

Option B: Zinc phosphate

Option C: Polycarboxylate

Option D: GIC

Correct Answer: Silicate cement ✔

Option A: GIC

Option B: ZOE

Option C: Ca (OH)2

Option D: Zinc polycarboxylate cement

Correct Answer: ZOE ✔

Option A: High strength

Option B: Good marginal integrity

Option C: It can bond enamel & dentin

Option D: It has less occlusal wear

Correct Answer: It can bond enamel & dentin ✔

Option A: Adding a drop of water

Option B: Increasing mixing time

Option C: Cooling the slab

Option D: Adding a drop of oleic acid

Correct Answer: Adding a drop of water ✔

Option A: Glass Ionomer Cement

Option B: Zinc Phosphate

Option C: Resin cement

Option D: Silicate cement

Correct Answer: Silicate cement ✔

Option A: Zinc phosphate

Option B: Zinc oxide eugenol

Option C: Calcium hydroxide

Option D: Glass ionomer

Correct Answer: Glass ionomer ✔

Option A: Compression

Option B: Tensile force

Option C: Shear

Option D: Transverse bending force

Correct Answer: Shear ✔

Option A: Acetic acid

Option B: Zinc acetate dehydrate

Option C: Calcium chloride

Option D: Bromoglycerine

Correct Answer: Bromoglycerine ✔

Option A: Hydrated Aluminium phosphate

Option B: Hydrated Aluminium Phosphate with calcium fluoride

Option C: Hydrate Aluminosilicate gel

Option D: Hydrated Aluminium phosphate crystal, CAF2 alluminosiliate gel

Correct Answer: Hydrated Aluminium phosphate ✔

Option A: Heating up to 200 – 450°C for 15 – 30 min and quenching in water

Option B: Heating at 700°C for 10 – 15 min and quenching in water

Option C: Heating at 700°C for 1 hour and quenching in water

Option D: Heating above 700°C for 30 min and quenching in water

Correct Answer: A. Heating up to 200 – 450°C for 15 – 30 min and quenching in water ✔

Option A: Zinc phosphate cement

Option B: Glass Ionomer cement

Option C: Zinc oxide Eugenol cement

Option D: Resin cement

Correct Answer: Zinc phosphate cement ✔

Option A: ZnCl2 + Eugenol

Option B: ZnCl2 + ZnSO2

Option C: Eugenol + ZnO

Option D: Zn(OH)2 + ZnO

Correct Answer: ZnCl2 + ZnSO2 ✔

Option A: Temp of glass slab

Option B: P:L ratio

Option C: Consistency of mix

Option D: Alteration of mixing time

Correct Answer: P:L ratio ✔

Option A: Cementing crowns

Option B: Temporary dressing

Option C: base

Option D: cementing orthodontic bands

Correct Answer: Cementing crowns ✔

Option A: ZnO is converted to Zn(OH)2

Option B: Reaction is autocatalytic

Option C: Water is the byproduct of reaction

Option D: Dehydrated ZnO reacts with dehydrated eugenol

Correct Answer: Dehydrated ZnO reacts with dehydrated eugenol ✔

Option A: Reinforced auto care glass ionomer cement

Option B: Compomer

Option C: Resin modified glass ionomer cement

Option D: Ceramic reinforced glass ionomer cement

Correct Answer: Resin modified glass ionomer cement ✔

Option A: Equal lengths of base paste and accelerator paste are mixed together until the mix has a uniform colour

Option B: Increase in temperature and humidity shorten the setting time

Option C: The mix appear thick at the start of mixing but after 30 seconds of additional spatulation it becomes more fluid

Option D: Water accelerates but heat retards the setting of zinc oxide eugenol cements

Correct Answer: Both C & D ✔

Option A: High compressive strength

Option B: Tensile strength

Option C: High modulus of elasticity

Option D: Diametral strength

Correct Answer: High modulus of elasticity ✔

Option A: Average bonding to tooth

Option B: Low bonding to tooth

Option C: Excellent bonding to tooth

Option D: No bonding to tooth

Correct Answer: No bonding to tooth ✔

Option A: Zinc Phosphate cement

Option B: Zinc oxide equgenol cement

Option C: Zinc silicophosphate cement

Option D: Zinc polycarboxylate cement

Correct Answer: Zinc oxide equgenol cement ✔

Option A: Microfilled composite resins

Option B: Pure gold

Option C: Silver amalgam

Option D: Type II Glass ionomer cement

Correct Answer: Type II Glass ionomer cement ✔

Option A: Cement tooth interface

Option B: Cement prosthesis interface

Option C: Cleavage through the cement layer

Option D: Fracture of tooth or prosthesis

Correct Answer: Cement prosthesis interface ✔

Option A: mixing more powder to the liquid

Option B: mixing powder to liquid, checked by water

Option C: slower addition of powder to liquid

Option D: faster addition of powder to liquid

Correct Answer: slower addition of powder to liquid ✔

Option A: Carboxyl group

Option B: Chelates with Metal Ions

Option C: C=C double bond

Option D: Polymer chains

Correct Answer: Carboxyl group ✔

Option A: Phosphoric Acid

Option B: Ethyl alcohol

Option C: Benzoic acid

Option D: None of the above

Correct Answer: Benzoic acid ✔

Option A: Zinc oxide eugenol

Option B: Polycarboxylate cement

Option C: Zinc phosphate cement

Option D: Silicate cement

Correct Answer: Zinc oxide eugenol ✔

Option A: Zinc polycarboxylate

Option B: Polymer reinforced ZOE cement

Option C: Zinc phosphate

Option D: Glass inomer cement

Correct Answer: Zinc phosphate ✔

Option A: Decreasing conduction of heat to pulp

Option B: Minimize marginal leakage around restoration

Option C: By altering the chemical composition of restoration materials

Option D: By preventing penetration of corrosion products into the dentinal tubules

Correct Answer: Minimize marginal leakage around restoration ✔

Option A: 2 years

Option B: 4 years

Option C: 6 years

Option D: 8 years

Correct Answer: 4 years ✔

Option A: It is not necessary in moderately deep cavities under glass ionomer restoration

Option B: Have Film thickness of 1 – 50 microns

Option C: Do not provide thermal or electric insulation

Option D: Protect the pulp from reaction products leaching out of restoration

Correct Answer: B. Have Film thickness of 1 – 50 microns ✔

Option A: Polycarboxylate cement

Option B: Resin cement

Option C: Silicate cement

Option D: Glass ionomer cement

Correct Answer: Glass ionomer cement ✔

Option A: It is pulpal irritant

Option B: It is highly cariogenic

Option C: Chemically attaches to the tooth structure

Option D: It produces thinnest film surface

Correct Answer: It is pulpal irritant ✔

Option A: ZOE

Option B: Calcium Hydroxide

Option C: Zinc silicophosphate

Option D: Zinc phosphate

Correct Answer: Zinc silicophosphate ✔

Option A: In final cementation

Option B: As temporary cementation

Option C: As a temporary filling material

Option D: It has less occlusal wear

Correct Answer: In final cementation ✔