Rajiv Gandhi University of Health Sciences 2008 B.D.S Dental Surgery –(DENTAL MATERIALS (RS & RS2) QP Code: 1154) - Question Paper

I B.D.S Degree exam – January 2008

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

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

LONG ESSAY two X 10 = 20 Marks
1. List the casting defects that can arise and define in detail how to avoid them
2. elaborate the various ways of producing a ceramic restoration? define the procedure of
condensation & sintering of feldspathic porcelain

SHORT ESSAY 10 X five = 50 Marks
3. Adhesion and mechanical bonding
4. Eutectic and peritectic alloys
5. Hygroscopic expansion
6. Disinfection of impression materials
7. Wax distortion
8. Sandwich technique
9. Dual cure resins
10. Zinc oxide eugenol cements
11. Trituration
12. Precipitated gold

SHORT ANSWERS 10 X three = 30 Marks
13. Ionic bond
14. Die spacer
15. kind V gypsum product
16. Cavity varnish
17. Coupling agent
18. Length of sprue former
19. Dough like stage in acrylic resin
20. Flux
21. Gamma two phase
22. Divestment

Earning:   Approval pending.