High Yield Dental Materials Points FCPS Part 1

Dental Material is the subject of too much impotence. Almost 20 to 25 MCQs come from this subject in the exam of FCPS Part 1. For the prep of FCPS Part 1 you have to cover three aspects, 1: Texts, 2: MCQs and 3: Important points. With out important Points it will be difficult in exam to solve MCQs. All candidates should cover all these important Points. We have made important Points for the Subject of Dental Materials to make your preparation easy and up to the mark. It will definitely help you people in the exam of FCPS Part 1 Dentistry.

All u Want10

The melting range of Gold Casting alloys = 900*c

  1. The melting Range of Co-Cr alloys = 1350*c
  2. Investment used for casting conventional Gold Alloys = Gypsum-bonded Investment
  3. Investment used for Base metal Alloys = Type 1 Phosphate bonded investment
  4. Investment used for Remove-able partial Denture Framework = Type 2 Phosphate bonded investment
  5. Type of Gold for all metal Crowns and Bridges = Type lll
  6. Strain Hardening = will cause decrease in Ductility and Resistance to corrosion
  7. Fritting: = The process of production of Low and Medium Fusing Porcelain
  8. Material of choice to produce Diagnostic Casts = Alginate
  9. Ideal material for Master Cast = Type 4 Dental Stone
  10. Fluxes = dissolves surface oxides
  11. Potassium Flouride = in Fluxes dissolve Chromium Oxide film
  12. Oxides and Sulfides = are the Corrosion Products
  13. The most common Anti-Flux is = Graphite
  14. To greatly extend the working time of Zinc Phosphate Cements =  “Frozen Slab” technique is used
  15. GIC = has superior Mechanical Properties than Zinc Phosphate and Zinc Poly-carboxylate Cements



  16. GIC = has more retention than Zinc Phosphate and Zinc Polycarboxylate
  17. Type 1 Gold Alloys are used for = small Inlays
  18. Type 2 Gold Alloys are used for = Larger Inlays and Onlays
  19. Type 3 Gold Alloys are used for = Crown n Bridges
  20. Type 4 Gold Alloys are used for = Remove-able Partial Denture
  21. Sprue should attach to the Wax pattern at an angle of = 45 *
  22. Nickle in Base metal Alloys is responsible = Ductility
  23. Chromium is for = Passivating Film
  24. Cobalt = increases Rigidity of Alloy
  25. Increase Water to Powder Ratio of Gypsum causes = less expansion
  26. Rapid Spatulation of Gypsum results in = Acceleration of setting time
  27. 28% NaCl act as = accelerator of Gypsum 
  28. Borax and Sodium Citrate act as = retarder of Gypsum
  29. Dental Plaster has = Beta Hemihydrate
  30. Dental Stone has = Alpha Hemihydrate
  31. Beta Hemihydrate is also known as = Plaster of Paris
  32. Vibrator is used after mixing of Dental Stone and Plaster to eliminate = Air Bubbles
  33. Gypsum Products = are weaker in Tensile Strength than Compressive Strength
  34. Gypsum products are produced by the process of = Calcination
  35. Alginate shows the Phenomenon of Synersis by giving up = Water
  36. Alginate shows the Phenomenon of Imbibition by gaining = Water
  37. Polyether Impression Materials = are the most rigid and difficult to remove from the Mouth
  38. Polyether Impression Materials = are unstable in the presence of Moisture
  39. Polyether Impression Materials = also shows the Phenomenon of Imbibition
  40. Condensation Sillicons = need 20 to 30 Minutes wait before pouring of models due to stress relaxation to occur

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