Download RGUHS (Rajiv Gandhi University of Health Sciences) BDS 2017 August (Bachelor of Dental Surgery) 1st Year 1154 Dental Materials Rs And Rs2 Previous Question Paper

Rajiv Gandhi University of Health Sciences, Karnataka
I B.D.S Degree Examination - AUG - 2017
Time: Three Hours
Max. Marks: 100 Marks
DENTAL MATERIALS (RS & RS2)
Q.P. CODE: 1154
Your answers should be specific to the questions asked
Draw neat, labeled diagrams wherever necessary
LONG ESSAYS
2 x 10 = 20 Marks
1.
Define tarnish and corrosion. Describe the various types of corrosion.
2.
Classify composites resins and what are their components and their role? Mention advantages,
disadvantages and uses of composite resins.
SHORT ESSAYS
10 x 5 = 50 Marks
3.
Surface hardness and its significance
4.
Cohesive and non-cohesive gold
5.
Liner and bases
6.
Soldering and welding
7.
Burnishing and polishing in dental amalgam
8.
Metal modified Glass ionomer cement
9.
Carat and fineness in direct filling gold
10.
Trituration and condensation of dental amalgam.
11.
Pit and fissures sealant
12.
Casting ring liners
SHORT ANSWERS
10 x 3 = 30 Marks
13.
Internal porosity in resin dentures
14.
Cohesion
15.
Coefficient of thermal expansion
16.
Crystalline gold
17.
Luting cements
18.
Eames techniques
19.
Copy milling
20.
Electro alloys
21.
Separating media
22.
Define strain hardening.
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