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Which One of the Following Is the Main Criterion for Failure

Question 22

Multiple Choice

Which one of the following is the main criterion for failure of a high-copper dental amalgam restoration?


A) Accumulation of black or green tarnish on exposed surfaces
B) Marginal ditching along occlusal margins
C) Creep of the restoration out of the cavity preparation in proximal areas
D) Wear facets along the occlusal contact areas
E) None of the above

Correct Answer:

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