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12 Cards in this Set
- Front
- Back
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-Bacteriostatic
-pH of 11 -provides stimulus for the tooth to repair itself |
Calcium Hydroxide
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-Releases fluoride
-Chemically bonds to tooth surface |
Glass Ionomer
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-Near neutral pH
-Obtundant -Weakest cement in tension |
Zinc Oxide-eugenol (ZOE)
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-pH increases over many hours during setting stages
-Most acidic cement |
Zinc Phosphate
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-Bonds to tooth structure
-Very biocompatible -First adhesive material in denistry |
Zinc Polycarboxylate
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-pH increases over many hours during setting stages
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Zinc Silicophosphate
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-Can be bonded to dentin and enamel
-Very insoluble in saliva |
Bis GMA Resin (polymer)
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What happens to the cement if too much water is added?
(strength, thickness, solubility, acidity, setting time) |
Strength = decrease
thickness = decrease solubility = increase acidity = increase setting time = increase |
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What happens to the cement if too much powder is added?
(strength, thickness, solubility, acidity, setting time) |
strength= increase
thickness = increase solubility = decrease acidity = decrease setting time = decrease |
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What happens to the cement if there is a temperature increase? ie warm glass slab
(strength, thickness, solubility, acidity, setting time) |
strength = decrease
thickness = increase solubility = increase acidity = increase setting time = decrease |
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What happens to the cement is there is water contamination?
(strength, thickness, solubility, acidity, setting time) |
strength = decrease
thickness = increase solubility = increase acidity = increase setting time = decrease |
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What happens to the cement if there is improper mixing? i.e. powder is incorporated too fast
(strength, thickness, solubility, acidity, setting time) |
strength = decrease
thickness = increase solubility = increase acidity = increase setting time = decrease |
