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. 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
2. What is the cavo-surface angle of prep for amalgam restoration:
A. 30 degree
B. 60 degree
C. 90 degree
D. 130 degree
3. Rubber dam is contraindicated in:
A. Patient with obstructive nose
B. Mentally retarded Patient
C. Un comparative child.
D. All of these
4. Polishing bur have:
A. Less than 6 blades.
B. 6-7 blades.
C. 10-12 blades.
D. More than 12 blades
5. 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
6. 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
7. Selection of shade for composite is done:
A. Under light.
B. After drying tooth & isolation with rubber dam
C. Both A and B
D. None of the above
8. Selection of shade for composite is done:
A. Under light.
B. After drying tooth and isolation with rubber dam.
C. Both A and B
D. None of these
9. The following chemically bond to the tooth:
A. Composite resin.
B. Dental sealants.
C. Glass ionomer cement
D. All of the above
10. 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
11. To prevent discoloration under amalgam filling:
A. Use Zn phosphate box.
B. Use cavity varnish
C. Wash the cavity with NaOCL b4 filling.
D. Use the correct amalgam-alloy ratio
12. It has been proven that amalgam restoration has the following characteristics:
A. Micro leakage decrease with aging of the amalgam restoration.
B. It is the least techniques sensitive of all current direct restorations.
C. High dimensional changes.
D. All of these
13. Composite for posterior teeth:
A. Microfilled + fine filler.
B. Macroflled + rough filler.
C. Hybrid + rough filler
D. None of these
14. Indirect composite inlay overcome the direct composite by:
A. Insufficient polymerization
B. Good contact proximally
C. Gingival seal
D. All of these
15. 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
16. A class IV composite resin restoration should be finished with a:
A. No. 330 Tungsten carbide bur.
B. Mounted stone.
C. 12- fluted carbide bur
D. Coarse diamond point stone
17. MOD amalgam restoration with deep mesial box, PT come with pain related to it after 1 month due to:
A. Pulp involvement
B. Supraocclusion.
C. Upon contact.
D. Gingival recession
18. 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
19. Removal of Undermined Enamel in Class II cavity is done by :
A. Chisel
B. Angle former
C. Excavator
D. All of these
20. 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
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