ch43

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Author:
karlap
ID:
107197
Filename:
ch43
Updated:
2011-10-08 00:42:19
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Ch43 multiple choice
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Ch43
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  1. Which professional organization evaluates a new dental material?
    ADA
  2. What type of reaction does a dental material undergo when a person is chewing?
    compressive stress
  3. What happens to a dental material when it is exposed to extreme temperatures of hot and then cold?
    contraction and expansion
  4. Which is an example of how galvanic action can occur?
    • salt within saliva
    • touching of materials
  5. How does an auto-cured material harden or set?
    by chemical reaction
  6. Select the correct makeup of the alloy powder in amalgam.
    silver, tin, copper, and zinc
  7. Why is dental amalgam not placed in anterior teeth?
    esthetics
  8. Most amalgams have a high copper content. What does copper provide to amlgam restorations?
    • strenght
    • corrosion resistance
  9. Where are amalgam scraps disposed of?
    in a biohazard bag
  10. What is used to triturate amalgam?
    amalgamator
  11. The term commonly used to refer to dimethacrylate is
    BIS-GMA
  12. Which filler type composite resin has the strongest makeup and has been used most commonly for posterior restorations?
    macrofilled
  13. When ligh-curing composite resins, which factor can affect curing time of the material?
    type of composite
  14. What is used to determine the color of composite resin material for a procedure?
    shade guide
  15. The final step in finishing a composite resin is
    Using a rubber cup and polishing paste
  16. The acronym IRM stands for
    Intermediate restorative material
  17. What temporary restorative material would most likely be selected for a class II cavity preparation?
    IRM
  18. Which material would most likely be selected for provisional coverage?
    acrylic resin
  19. The three noble metals used in making indirect restorations are
    gold, palladium and platinum
  20. What type of restoration is made in the dental laboratory?
    indirect restoration

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