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Second Year BDS Degree Supplementary Examinations July 2019
Time: 3 hrs
Dental Materials
(2010 Scheme)
Answer all questions
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Max marks: 100
Write section A and section B in separate answer books (32 Pages).
Do not mix up questions from section A and section B.
QP Code: 204002 Section A - Prosthodontics Marks: 50
Essay (14)
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- Classify gypsum products. Describe in detail about setting expansion, hygroscopic setting expansion and factors affecting each. (2+12)
Short essays (2x8=16)
- Composition and setting reaction of phosphate bonded investment materials.
- Irreversible hydrocolloid impression material.
Short notes (5x4=20)
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- Stainless steel
- Die- electroforming
- Components of dental implants
- Rouge
- Chemical stages of polymerization of heat cure acrylic resins.
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QP Code: 205002 Section - Conservative Dentistry Marks: 50
Essay (14)
- Classify dental amalgam alloys. Discuss the composition, setting reaction and advantages of high copper alloys. (2+2+6+4)
Short essays (2x8=16)
- Classify direct filling gold. Discuss the techniques for removal of surface impurities
- Define corrosion, enumerate causes of corrosion and methods to protect against it. (3+5) (2+6)
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Short notes (5x4=20)
- Hybrid composites
- Setting reaction of glass ionomer cements.
- Rake angle and clearance angle
- Micro leakage
- Acid-etching
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