Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. Silicate cement:
A. First tooth colored restoration material
B. It can be used as permanent filling.
C. It contains 12-25 % fluoride
D. A and C

2. In Class V composite restorations a layer of bonding agent is applied:
A. Following removal of cement then cured
B. Following removal of cement and not cured.
C. Cured then remove cement
D. None of these

3. Length of pins must be equals in both tooth and restoration by a depth of:
A. 1 mm.
B. 2 mm
C. 3 mm.
D. 4 mm

4. Calcium hydroxide is best pulp capping material because:
A. It has best seal over pulp.
B. It is alkaline + less irritating to pulp.
C. It induces reparation dentine formation
D. All of these

5. What can we use under composite restoration:
A. Calcium hydroxide
B. ZOE.
C. ZINC phosphate cement
D. All of these

6. Calcium hydroxide is used in deep cavity because it is:
A. Simulate formation of 2nd dentine
B. Not irritant to the pulp.
C. For thermal isolation
D. All of these

7. A glossy finish is best retained on a:
A. Microfilled composite resin restoration
B. Macrofilled resin restoration.
C. Hybrid composite resin restoration.
D. Fiber reinforced composite resin restoration

8. The following chemically bond to the tooth:
A. Composite resin.
B. Dental sealants.
C. Glass ionomer cement
D. All of the above

9. In the preparation of cavity class II , for restoration with composite resin all Cavosurface angles should be:
A. Well rounded
B. Right angles.
C. Acute angles.
D. Obtuse angles

10. Stainless steel pin is used in amalgam for:
A. Increase retention
B. Increase resistance.
C. Increase streangth.
D. All of these

11. Depth of amalgam restoration should be:
A. 1 1.5 mm.
B. 1.5 2 mm
C. 2 3 mm.
D. 3 5 mm

12. Which of the following materials has been shown to simulate reparative dentine formation most effectively when applied to the pulpal wall of a very deep cavity:
A. Copalite varnish.
B. Calcium hydroxide preparation
C. Zinc phosphate cement.
D. Anhydrous class inomer cement

13. The x- ray of choice to detect the proximal caries of the anterior teeth is:
A. Periapical x-ray
B. Bitewing x-ray.
C. Occlusal x-ray.
D. None of these

14. Hand instrument which we used to make internal angles retentive grooves and preparation of cavity walls in the cavity is:
A. Angle former
B. Chisel.
C. File.
D. Enamel hatched

15. In placement of rupper dam:
A. 4 jaw contact in teeth.
B. Only 4 contacts 2 lingual surface and 2 buccal surface
C. Only 4 contacts 2 mesial and 2 distal
D. None of these

16. After amalgam titrations, the mix should be placed within:
A. 1 min
B. 3 min
C. 5 min.
D. 10 min

17. Patient complains from pain during mastication which had gold onlays. The pain could be due to:
A. Chemicals from cement.
B. High thermal conductivity of gold.
C. Related to periodontal ligament
D. Cracked tooth or fractured surface

18. Reduction in amalgam restoration should be:
A. 1-1.5 mm.
B. 1.5-2 mm
C. 2-3 mm
D. 3-5 mm

19. 7 days after amalgam restoration, patient came complaining of pain during putting spoon on the restored tooth because:
A. Irreversible pulpitis.
B. Reversible pulpitis.
C. Broken amalgam.
D. Galvanic action

20. After class V GI restoration removal of a thin flush of GI is done by:
A. Scaller or knife immediately.
B. Finishing stone immediately.
C. Finishing stone later.
D. Both A and C

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