DEN 102-Chaper Three

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Author:
melinda
ID:
36984
Filename:
DEN 102-Chaper Three
Updated:
2010-09-23 21:57:54
Tags:
cements
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Description:
Dental Cements-starting at page 47-
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  1. DO YOU NEED A BASE OR LINER WITH ZOE?

    WHY OR WHY NOT?
    NO, IT HAS A VERY SOOTHING EFFECT ON THE DENTAL PULP.
  2. THIS CANNOT BE MIXED ON A REGULAR MIXING PAD, IT MUST BE MIXED ON A PAD KNOWN AS
    *GLOSSY, TREATED, OR COATED*
    ZINC PHOSPHATE CEMENT
  3. i can BOND to the teeth
    i am said to be "kind to the teeth"
    POLYCARBOXYLATE CEMENT
  4. Name two important things you must do for
    POLYCARBOXYLATE CEMENT
    • * make sure its free from debris
    • *completely dry
  5. I am acidic until I set then I am become "neutralized"
    Polycarboxylate Cement
  6. What is the most critical cement used in dentistry?
    Zinc Phosphate
  7. Type of ZOE:
    -is stronger & reinforced
    - known as an "intermediate restorative" It can last for 6-12 months.
    Type Two Zoe
  8. What are the TWO uses for
    ZINC PHOSPHATE?
    * permanent cementation (crowns, inlays, onlays bridges, & orthodontic bands and brackets)

    * insulating base under amalgam restorations
  9. What is in type one powder ZOE (Zinc Oxide Eugenol) ??
    • -zinc oxide
    • -resin
    • -zinc acetate
    • - activator (accelerator)
  10. ZOE has the strength needed for permanent cementation and retention; however, it is not as strong as what?
    ZINC PHOSPHATE CEMENT
  11. There are two types of ZOES.
    They are different due to .......
    their properties & uses
  12. What are the three uses of Polycarboxylate cement?
    -permanent cement (crowns, bridges, inlays, and onlays; for orthodontic bands, brackets, and appliances

    -temporary restoration

    -insulating base
  13. How is Zinc Phosphate and Polycarboxylate Cement alike?
    Both have zinc oxide as their main component.
  14. What is another name for Polycarboxylate cement?
    Zinc polyacrylate cement
  15. What can you mix Polycarboxylate cement on?
    -either a glass or paper mixing pad
  16. Polycarboxylate cements sets in _______________ minutes.

    Does Polycarboxylate produce an exothermic reaction?
    3-5 minutes

    NO
  17. What KINDS/TYPES of cements are usually hand mixed by the dental assistant?

    What is another name for cementing?
    Self-cured

    luting
  18. -are easier to work with because they afford the operator the flexibility of additional manipulation and working time in the mouth prior to initiating the final cure.
    Light-cured cements
  19. What is ALWAYS mixed on a cool, glass slab?
    Zinc Phosphate Cement
  20. I have
    * low thermoconductivity-- less sensitivity to hot & cold
    *a long shelf life
    * low solubility---which resists breakdown in the mouth
    Zinc Phosphate Cement
  21. ZINC PHOSPHATE CEMENT

    -has a powder & liquid
    The powder is ZINC OXIDE powder. What is it made with?
    • zinc oxide
    • & a small amount of magnesium oxide
  22. Before applying Zinc phosphate cement to the teeth what must be done and why?
    You must add a base/liner to protect teeth because the liquid used in Zinc phosphate is acidic.
  23. True or false
    ZINC PHOSPHATE CEMENT

    The powder used known as Zinc oxide powder is available in a range of tooth-matching shades.
    TRUE
  24. Why do you have to mix ZINC PHOSPHATE CEMENT on a cool, glass slab?
    Because of the exothermic reaction
  25. I have
    -a more viscous consistency, HOWEVER, I flow readily when applied to the surface.

    -"kind to the pulp"
    Polycarboxylate cement
  26. In dentistry, cements are most commonly supplied in which ways?
    • *powder and liquid
    • *a two-paste system
    • *a capsule
    • *premixed dispensing syring
  27. What may affect light-cured dental cements?
    Ambient (outside) forms of light. ESPECIALLY by halogen or fluorescent light in the treatment room.
  28. How many drops of Zinc Phosphate Cement is dispensed?

    What should you do before adding the powder to the glass slab?
    8 drops

    fluff the bottle

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