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. Maximum time elapsed before condensation of amalgam after titration:
A. 1 minute.
B. 3 minutes
C. 6 minutes.
D. 9 minutes
2. The following chemically bond to the tooth:
A. Composite resin.
B. Dental sealants.
C. Glass ionomer cement
D. All of the above
3. 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
4. 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
5. Indirect composite inlay overcome the direct composite by:
A. Insufficient polymerization
B. Good contact proximally
C. Gingival seal
D. All of these
6. What is the cavo-surface angle of prep for amalgam restoration:
A. 30 degree
B. 60 degree
C. 90 degree
D. 130 degree
7. Most commonly, after placement of amalgam restoration patient complains from pain with:
A. Hot.
B. Cold
C. Occlusal pressure.
D. Galvanic shock
8. Removal of Undermined Enamel in Class II cavity is done by :
A. Chisel
B. Angle former
C. Excavator
D. All of these
9. ompomer restorative materials are:
A. Glass ionomer with polymer components
B. Resin systems with fluoride containing glasses
C. Composite resin for cervical restorations only
D. All of these
10. 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
11. 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
12. Patient complains from pain in 45 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
13. After finish class v glass-ionomer cement we do finishing with:
A. Pumice slurry.
B. Aluminum-oxide disc
C. Either of these
D. None of these
14. Reduction in amalgam restoration should be:
A. 1-1.5 mm.
B. 1.5-2 mm
C. 2-3 mm
D. 3-5 mm
15. Stainless steel pin is used in amalgam for:
A. Increase retention
B. Increase resistance.
C. Increase streangth.
D. All of these
16. 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
17. 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
18. What is the copper ratio that eliminates gamma phase 2:
A. 2% copper
B. 4% copper
C. 10 % copper
D. 13 % copper
19. 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
20. Loose enamel rods at the gingival floor of a class II amalgam cavity should be removed using :
A. Straight chisel.
B. Hatchet.
C. Gingival curetla.
D. Gingival marginal trimmer
Dr K Chaudhry 5 Alpha Inmternational City, Fatehabad 125050 M: 9810570740, 9810571993facebook.com/doctorkc