medical MCQs – Page 140

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

2781. Gallium and indium added to Amalgam replace______________?
0

A. Tin

B. Silver

C. Zinc

D. Mercury

2782. Sublingual gland is a_____________?
0

A. Present in root of tongue

B. Mixed gland

C. Mucous gland

D. Serous gland

2783. The temperature (in F) of the mixing slab for silicate cements should be_____________?
0

A. 75 85

B. 65 75

C. 85 95

D. 55 65

2784. Which of the following is true_____________?
0

A. All the bones of upper face develop by intra membranous ossification

B. The third auditory ossicle or stapes develops from 2nd branchial arch

C. All of the above

D. Incus and malleus develops from mecketls cartilage

2785. Which of the following releases single wavelength of energy ?
0

A. PAC

B. Argon lasers

C. QTH

D. LED

2786. Average particle size of powdered gold is________________?
0

A. 30 um

B. 0.1 um

C. 15 um

D. 10 um

2787. Which of the following cements have anti cariogenic properly________________?
0

A. Zinc silicophosphate

B. Zinc phosphate

C. Calcium Hydroxide

D. ZOE

2788. In spherical alloys as compared to lathe cut____________?
0

A. Less condensing force is required

B. More condensing force is required

C. Both require same condensing force

D. Manipulation is easy

2789. Which cement is irritating to the pulp ?
0

A. Zinc oxide-eugenol cement

B. Zinc phosphate

C. Carboxylate cement

D. Ethoxybenzoic acid

2790. In plaster of paris the setting time is primarily altered by_________________?
0

A. Speed and length of hand spatulation

B. Addition of accelerators and retarders

C. Altering temperature of mixing water

D. Altering P / L Ratio

2791. By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
0

A. Ag

B. Cu

C. Zn

D. Hg

2792. For dental amalgam, the elastic modulus and tensile strength is______________?
0

A. 350 Gpa and 10 120 Mpa

B. 360 Gpa and 125 130 Mpa

C. 21 Gpa and 27 55 Mpa

D. 40 Gpa and 60 100 Mpa

2793. Carmalts glands are______________?
0

A. Taste Buds

B. Major salivary glands

C. Minor salivary gland ( lingual)

D. Minor salivary glands (Retromolar)

2794. Increase in the residual mercury in silver amalgam filling can_____________?
0

A. Tarnish and corrosion

B. Decrease condensation pressure

C. Increase the strength

D. Cause fracture of the filling

2795. Which of the following show chemical bond with enamel (Calcified tissues)______________?
0

A. Polycarboxylate cements

B. Direct filling resins

C. BIS-GMA resins in pit and fissure sealants

D. Composites

2796. MEchanism of adhesion of GIC restoration with tooth surface is by mean of ______________?
0

A. Carboxyl group

B. Polymer chains

C. Chelates with Metal Ions

D. C=C double bond

2797. The malleting force is directed______________?
0

A. 45 to the wall

B. None of the above

C. Parallel to long axis of crown

D. Perpendicular to the walls

2798. Amalgam achieves 70% of the strength by____________?
0

A. hours

B. 16 hours

C. 4 hours

D. 8 hours

2799. Modiffiers are added to gypsum mainly to_______________?
0

A. Modify setting expansion

B. Modify setting time

C. Modify strength

D. Decrease the porosity

2800. For porcelain fused to metal crown, the porcelain should have ______________?
0

A. High fusion temperature

B. Linear coefficient of thermal expansion less than that of metal

C. High fusion expansion

D. Linear coefficient of thermal expansion more than that of metal

Previous Next

Showing 2781 to 2800 of 10266 mcqs