Dental Cements MCQs

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 ✔

Option A: Silicate

Option B: ASPA

Option C: Polycarboxylate

Option D: Zinc phosphate

Correct Answer: Silicate ✔

Option A: 60%

Option B: 70%

Option C: 80%

Option D: 90%

Correct Answer: 70% ✔

Option A: Zinc phosphate and GIC

Option B: Silicate and GIC

Option C: ZOE and Silicate

Option D: Zinc phosphate and SIlicate

Correct Answer: Zinc phosphate and SIlicate ✔

Option A: Rosin

Option B: Zinc oxide

Option C: Zinc acetate

Option D: Oil of cloves

Correct Answer: Zinc oxide ✔

Option A: Carboxylate cement

Option B: Zinc oxide-eugenol cement

Option C: Zinc phosphate

Option D: Ethoxybenzoic acid

Correct Answer: Zinc phosphate ✔

Option A: Glass ionomer

Option B: Resin cement

Option C: Polycarboxylate cement

Option D: Silico-Phosphate cement

Correct Answer: Resin cement ✔

Option A: Mouth breathers

Option B: Patients with high caries index

Option C: In the restoration of posterior tooth

Option D: None of the above

Correct Answer: Patients with high caries index ✔

Option A: Glass ionomer

Option B: Polycarboxylate

Option C: Silicate

Option D: Resin cement

Correct Answer: Polycarboxylate ✔

Option A: 1 Minutes

Option B: 2 Minutes

Option C: 3 Minutes

Option D: 4 Minutes

Correct Answer: 3 Minutes ✔

Option A: Acetic acid

Option B: Zinc acetate dehydrate

Option C: Calcium chloride

Option D: Bromoglycerine

Correct Answer: Bromoglycerine ✔

Option A: GIC and polycarboxylate

Option B: GIC and ZnPO4

Option C: ZnPO4 and silicate

Option D: GIC and silicate

Correct Answer: GIC and polycarboxylate ✔

Option A: The reduction in enamel solubility due to fluoride uptake by enamel

Option B: That beryllium flux is used in silicates

Option C: That silicates show very little leakage at the margins of the restoration

Option D: Due to the high silica content

Correct Answer: The reduction in enamel solubility due to fluoride uptake by enamel ✔

Option A: Amalgam

Option B: Silicate

Option C: Composite resin

Option D: Cavity varnish

Correct Answer: Silicate ✔

Option A: Acetic acid

Option B: Alginic acid

Option C: Phosphoric acid

Option D: Ortho-ethoxy acid

Correct Answer: Ortho-ethoxy acid ✔

Option A: Zinc oxide eugenol

Option B: Zinc polycarboxylate

Option C: SIlicate

Option D: Glass ionomer

Correct Answer: Both B & D ✔

Option A: Polysiloxane

Option B: Phosphoric acid

Option C: Polyacrylic acid

Option D: Ion leachable glass

Correct Answer: Polyacrylic acid ✔

Option A: Composites

Option B: Direct filling resins

Option C: Polycarboxylate cements

Option D: BIS-GMA resins in pit and fissure sealants

Correct Answer: Polycarboxylate cements ✔

Option A: Decreased strength

Option B: Decreased film thickness

Option C: Decreased solubility

Option D: Increased setting time

Correct Answer: Decreased solubility ✔

Option A: 55 – 65

Option B: 65 – 75

Option C: 75 – 85

Option D: 85 – 95

Correct Answer: B. 65 – 75 ✔

Option A: Eugenol

Option B: Calcium Hydroxide

Option C: Zinc oxide

Option D: Silica

Correct Answer: Calcium Hydroxide ✔

Option A: Silicate cement

Option B: Glass ionomer cement

Option C: Polycarboxylate cement

Option D: All of the above

Correct Answer: All of the above ✔