NTR University of Health Sciences (NTRUHS) 2008 B.D.S Dental Surgery – ruary, second dental materials & metllurgy - Question Paper

1.Classify Impression Materials. define the Composition, setting
reaction, manipulation of Impression Compound.-9M

WRITE SHORT NOTES ON: [MARKS4x4=16]
2.Light cure Composite resin
3.Hygroscopic setting Expansion
4.Composition of Alginate Impression material
5.Duplicating Materials

WRITE BRIEFLY ON: [MARKS 5x2=10]
1.Crosslinking agents for Acrylic resin
2.Separating Media
3.Polyurethane polymer
4.Soft liner
5.Ductility and Malleability

PART – B (35 MARKS)

1.Classify Dental Cements. Add a note on Glass ionomer Cement. [MARKS 9]

WRITE SHORT NOTES ON: [MARKS 4x4=16]
2.Zinc Oxide Eugenol Cement
3.Stages of firing of Dental Porcelain
4.Metal-Ceramics
5.Abrasives and Polishing agents

WRITE BRIEFLY ON: [MARKS 5x2=10]
6.Annealing
7.Mechanical Trituration
8.Divestment
9.Flux
10.Nitinol

Earning:   Approval pending.