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18 Cards in this Set
- Front
- Back
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The process of mixing amalgam is |
Amalgamation or titration |
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_alloys are made by grinding an ingot of metal to produce irregularly shaped fillings |
Lathe cut |
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A_ is the silver/tin powdered metal before it is mixed in mercury |
Alloy |
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3 shapes of amalgam alloys |
Lathe, spherical and admixed |
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_particles require less mercury to wet the particles and the result is a faster setting amalgam |
Spherical |
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Name the 3 phases of precipitation in a low copper amalgam |
Gamma y, gamma y1, gamma y2 |
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_ copper alloys are stronger and more corrosion resistant than _copper alloys |
High, low |
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In low copper amalgams _ is the weakest and most corrosive phase |
Gamma y2 |
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_phase is the strongest most corrosion resistant phase in the setting reaction of amalgam |
Gamma phase |
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The __ phase of the setting reaction of amalgam is eliminated when high copper alloys are used |
Gamma 2 |
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Lathe cut and admixed amalgama restorations should be polished after 24 hours |
TRUE |
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_amalgams can be polished 20 minutes after placement |
Spherical |
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Dental amalgam is the only material that may work when wet |
True |
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_ is a resin disolved In a solvent to reduce leaks by sealing margins before corrosion products form |
Copal varnish (copalite) |
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Copal varnish is being replaced by |
Dentim bonding systems |
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_restorations are very technically sensitive and require a great deal of operator skill |
Gold foil |
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_is the process of heating gold foil to remove the chemical protectant before placement |
Annealing |
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The _strengjt is high |
Compressive |
