Moisture contamination of amalgam can lead to_____________?
Correct answer: A. Delayed expansion
- A. Delayed expansion
- B. Shrinkage
- C. Marginal breakdown
- D. increased stresses
Explanation
Moisture contamination of zinc-containing amalgam produces delayed expansion, commonly through hydrogen gas formation during the setting reaction. It does not primarily cause shrinkage, although the expansion can create stresses and marginal problems.
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