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29 Cards in this Set
- Front
- Back
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Ag3Sn
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Gamma
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Cu3Sn
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Epsilon
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Ag2Hg3
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Gamma 1
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Hi copper single has what?
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Cu, Ag, Sn + Hg
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High copper (single)
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Best because no Gamma 2.
Gamma + Epsilon + Hg --> Gamma 1 + Eta + Gamma + Epsilon |
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Traditional low copper
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Gamma + Hg --> Gamma + Gamma 1 + Gamma 2 +
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High Copper 2 Reactions
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1. Gamma + AgCu + Hg -->
Gamma + Gamma 1 + Gamma 2 + AgCu 2. Gamma 2 + AgCu --> Eta + Gamma 1 |
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Sn7-8Hg
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Gamma 2
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CuSn5
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Eta
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Non working side
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mediotrusive/balancing
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#4 clamp
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small maxillary premolars
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Atropine Sulfate
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not used routinely
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Bella Donnas
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15mg 2 hours before
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Scopalamine
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.4mg 1/2 hr between
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Valium
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5 -10 mg 1hour prior
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Dentin critical pH
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6.2
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12A clamp
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Right mandibular and Left Max molars
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7 clamp
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Mandibular molars
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Excess Hg causes?
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a decrease in physical and mechanical properties
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Lack of Hg causes?
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an increase in porosity, rough dry and irregular surface
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Seven steps
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Outline, resistance, retention, convenience, removal decay, cavosurface, Debridement
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Problems with Low copper amalgams
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1. Low strength and problem with Gamma 2 (corrosion prone)
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Tin
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reduces expansion, good hardening
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Silver
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increases mechanical resistance and delay shiny appearance loss and corrosion
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Zinc
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Antioxidant; exapnsion
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Copper
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increases hardness
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#2
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Large premolars
2A is small PM |
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#9
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Butterfly clamp
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#7
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Mandibular molars
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