B.D.S-B.D.S Dental Surgery 2nd Year DENTAL MATERIALS(Kerala University of Health Sciences-2013)
Reg. No.: …………………
Second Year BDS Degree Examinations -September 2013
DENTAL MATERIALS
Time: 3 hrs Max marks: 100
• Answer all questions
• Write section A and section B in separate answer books. Do not mix up questions from section A and section B.
Q P Code: 204002 Section A – Prosthodontics Marks: 50
Essay (14)
1. Define an impression. Discuss the uses, composition and setting reaction of elastomeric impression materials. (2+2+5+5=14)
Short essays (2x8=16)
2. Classify dental casting investments. Explain in detail about gypsum bonded investment. (3+5=8)
3. Classify base metal alloys. Mention about stainless steel, cobalt chromium nickel and beta titanium alloys. (2+6=8)
Short notes (5x4=20)
4. Crystalline and non crystalline structures.
5. Irreversible hydrocolloid
6. Maxillofacial prosthetic materials.
7. Fluxes and anti fluxes
8. Stress and strain
Q P Code: 205002 Section B – Conservative Dentistry Marks: 50
Essay (14)
1. Classify direct filling gold. Discuss the techniques for removal of surface impurities. Add a note on compaction of direct filling gold (4+5+5=14)
Short essays (2x8=16)
2. Discuss mercury toxicity and mercury hygiene (3+5=8)
3. Define and classify dentine bonding agents (4+4=8)
Short notes (5x4=20)
4. Tarnish and corrosion
5. Sandwich technique
6. Shape memory and super elasticity
7. Modified zinc oxide eugenol cement
8. Indirect composite inlays
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| Earning: Approval pending. |
