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Noor Mohammed English 4 cards

Cards in this deck (4)

  1. 1give reason : the oral enviroment is very conductive to formation of corrosion products ?as it is moist and subjected to fluxion in temp. and PH .
  2. 2eggs can corrode some restoratins ?they contain sulfur that can corrode silver , copper,murcury and similar metals which can be found in dental alloys and amalgam .
  3. 3storage of amalgam can affect the process of amalgamation ?the oxidiation of amalgam containing eutictic phase of AG_CU forms a layer that prevents good wetting of mercury and affecting amalgamation process .
  4. 4solder joints between dental alloys may corrodebecause of the difference in composition between solder and alloy thus having different electrode [otentials that may lead to local galvanic corrosion .

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Flashcards on Untitled, created by Noor Mohammed on 13/03/2014.
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Noor Mohammed
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