A. Accelerated corrosion
B. Fracture of the restoration
C. Merginal damage
D. All of the above
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Related Mcqs:
- Cavo surface angle for amalgam resoration is butt joint as____________?
- A. It increases compresssive and tensile strengths B. Decreased compressive, increased strength C. Decreased compressive, decrease tensile strength D. Increased compressive, increased tensile strength...
- Setting time of Amalgam is best controlled by _______________?
- A. Using spherical particles B. Lathe cut alloy C. Altering Hg-Alloy ratio D. Trituration time...
- The ADA specification No 1 for composition of amalgam alloy recommends______________?
- A. 65% silver, 32% tin and 3% copper B. 49% silver, 32% tin and 19% cooper C. 65% silver, 29% tin and 5-6% copper D. None of the above...
- How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?
- A. 24 hours B. 1-2 days C. 3-5 days D. 7 days...
- Which of the following silver amalgam alloy have the maximum strength________________?
- A. Lathe cut B. Spherical C. Admixed D. Single composition...
- Which of the following are characteristic feature of high copper amalgam alloy ?
- A. Low compressive strength B. High marginal breakdown C. Less marginal # D. High creep...
- In amalgam alloy which acts as oxygen scavenger_____________?
- A. Cu B. Zn C. Pd D. Ag...
- Which of the following constituents of amalgam alloy decreases expansion____________?
- A. Copper B. Zinc C. Silver D. Tin...
- The largest component of amalgam alloy is_____________?
- A. Silver B. Tin C. Zinc D. Copper...
- In non zinc containing dental amalgam alloy the percentage of zinc present is______________?
- A. Less than 0.02% B. Less than 0.1% C. Less than 0.01% D. None of the above...
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