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The flashcards below were created by user
melinda
on FreezingBlue Flashcards.
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DO YOU NEED A BASE OR LINER WITH ZOE?
WHY OR WHY NOT?
NO, IT HAS A VERY SOOTHING EFFECT ON THE DENTAL PULP.
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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
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i can BOND to the teeth
i am said to be "kind to the teeth"
POLYCARBOXYLATE CEMENT
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Name two important things you must do for
POLYCARBOXYLATE CEMENT
- * make sure its free from debris
- *completely dry
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I am acidic until I set then I am become "neutralized"
Polycarboxylate Cement
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What is the most critical cement used in dentistry?
Zinc Phosphate
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Type of ZOE:
-is stronger & reinforced
- known as an "intermediate restorative" It can last for 6-12 months.
Type Two Zoe
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What are the TWO uses for
ZINC PHOSPHATE?
* permanent cementation (crowns, inlays, onlays bridges, & orthodontic bands and brackets)
* insulating base under amalgam restorations
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What is in type one powder ZOE (Zinc Oxide Eugenol) ??
- -zinc oxide
- -resin
- -zinc acetate
- - activator (accelerator)
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ZOE has the strength needed for permanent cementation and retention; however, it is not as strong as what?
ZINC PHOSPHATE CEMENT
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There are two types of ZOES.
They are different due to .......
their properties & uses
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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
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How is Zinc Phosphate and Polycarboxylate Cement alike?
Both have zinc oxide as their main component.
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What is another name for Polycarboxylate cement?
Zinc polyacrylate cement
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What can you mix Polycarboxylate cement on?
-either a glass or paper mixing pad
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Polycarboxylate cements sets in _______________ minutes.
Does Polycarboxylate produce an exothermic reaction?
3-5 minutes
NO
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What KINDS/TYPES of cements are usually hand mixed by the dental assistant?
What is another name for cementing?
Self-cured
luting
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-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
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What is ALWAYS mixed on a cool, glass slab?
Zinc Phosphate Cement
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I have
* low thermoconductivity-- less sensitivity to hot & cold
*a long shelf life
* low solubility---which resists breakdown in the mouth
Zinc Phosphate Cement
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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
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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.
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True or false
ZINC PHOSPHATE CEMENT
The powder used known as Zinc oxide powder is available in a range of tooth-matching shades.
TRUE
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Why do you have to mix ZINC PHOSPHATE CEMENT on a cool, glass slab?
Because of the exothermic reaction
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I have
-a more viscous consistency, HOWEVER, I flow readily when applied to the surface.
-"kind to the pulp"
Polycarboxylate cement
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In dentistry, cements are most commonly supplied in which ways?
- *powder and liquid
- *a two-paste system
- *a capsule
- *premixed dispensing syring
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What may affect light-cured dental cements?
Ambient (outside) forms of light. ESPECIALLY by halogen or fluorescent light in the treatment room.
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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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