In a high copper amalgam the phase, which is eliminated is_______________?
Correct answer: B. Gamma 2
- A. Gamma 1
- B. Gamma 2
- C. Gamma 1 and 2
- D. No phase is eliminated
Explanation
High-copper amalgam uses copper to react with tin and prevent formation of the weak gamma-2 phase. Gamma-1 remains the main strength-giving matrix phase.
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