Rajiv Gandhi University of Health Sciences 2009 B.D.S Dental Surgery –(DENTAL MATERIALS (RS & RS2) QP Code: 1154) - Question Paper

I B.D.S Degree exam – January 2009

DENTAL MATERIALS (RS & RS2)
Time: three Hrs. [Max. Marks : 100]
QP Code: 1154

Your answers should be specific to the ques. asked.
Draw neat tagged diagrams wherever necessary.

LONG ESSAY 2 X 10 = 20 Marks
1. Classify dental waxes; explain in detail inlay casting wax
2. Classify gypsum products; explain in detail alpha calcium sulphate hemihydrates

SHORT ESSAY 10 X five = 50 Marks
3. Non eugenol impression paste
4. Acid etch technique
5. Silver alloy – mercury ratio
6. Denture reliners
7. Cast base metal alloys
8. Compare heat cure and self cure acrylic resin
9. Refractory material
10. Calcium hydroxide
11. Copolymerization
12. Enamel and dentin bonding agents

SHORT ANSWERS 10 X three = 30 Marks
13. Curing cycle of heat cure acrylic resin
14. Delayed expansion of amalgam
15. Distortion of inlay wax
16. Define abrasion and polishing
17. Green strength of gypsum
18. Brittleness and toughness
19. Composition of agar impression material
20. Classification of cast gold alloys
21. Manipulation of zinc phosphate cement
22. Strengthening of dental porcelain

Earning:   Approval pending.