Which of the following phases of dental amalgam has minimum strength____________?
Correct answer: B. Gamma 2
- A. Gamma 1
- B. Gamma 2
- C. Epsilon 1
- D. Gamma 3
Explanation
Gamma-2 is the weakest and most corrosion-prone phase of conventional amalgam, which is why high-copper alloys are designed to eliminate it. Gamma-1 is the principal stronger matrix phase.
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