Rajiv Gandhi University of Health Sciences 2007-1st Year B.D.S Dental Surgery –(DENTAL MATERIALS (RS & RS2))(QP Code: 1154) - Question Paper

I B.D.S Degree exam – February 2007

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


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

LONG ESSAY two X 10 = 20 Marks
1. explain irreversible hydrocolloid as impression material
2. Classify dental cements; write in detail about glass ionomer cement

SHORT ESSAY 10 X five = 50 Marks
3. Welding and soldering
4. Stress and strain
5. Porosities in denture resin
6. Ideal requirement impression material
7. Trituration
8. Enumerate kinds of direct filling gold
9. Composition of impression compound
10. Electroformed dies
11. Manipulation of heat cure resin
12. Composition of dental porcelain

SHORT ANSWERS 10 X three = 30 Marks
13. Phosphate bonded investment material
14. Factors affecting setting time of gypsum products
15. Creep and flow
16. Sprue former
17. Composition of self cure resin
18. Polymerization
19. Hygroscopic setting expansion
20. Setting reaction of Gamma – two phase
21. Silicate cement
22. Addition silicone

Earning:   Approval pending.