Second Year BDS Degree Supplementary Examinations – January 2017
DENTAL MATERIALS
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Time: 3 hrs
Max marks: 100
- Answer all questions
- Write section A and section B in separate answer books (32 Pages).
- Do not mix up questions from section A and section B.
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QP Code: 204002 Section A – Prosthodontics
Marks: 50
Essay
- Classify impression materials. Explain in detail about composition and setting reaction of zinc oxide eugenol impression paste. (14)
Short essays
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- Describe casting defects in detail. (8)
- Explain hygroscopic setting expansion in detail. (8)
Short notes
- Stages of polymerization. (5)
- Disinfection of impression materials. (5)
- Ductility and malleability. (5)
- Stainless steel. (5)
- Epoxy resin. (5)
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QP Code: 205002 Section B – Conservative Dentistry
Marks: 50
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Essay
- Mention the composition of glass ionomer cements. Explain in detail the setting reaction of glass ionomer cements and various types of glass ionomer cements. (14)
Short essays
- Classify inlay waxes. Explain its properties and applications. (8)
- Classify dental amalgam. Describe in detail the setting reaction of dental amalgam. (8)
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Short notes
- Nitinol (5)
- Rake angle and clearance angle (5)
- Smear layer (5)
- Annealing in direct filling gold (5)
- Zinc phosphate cement (5)
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