High strength amalgam is achieved by_____________?
Correct answer: B. Minimum matrix and maximum alloy phase
- A. Maximum matrix and minimum alloy phase
- B. Minimum matrix and maximum alloy phase
- C. Maximum matrix phase
- D. Minimum alloy phase
Explanation
Amalgam strength increases when the restoration contains more unreacted alloy particles and less weak matrix phase formed by the mercury reaction. Thus, maximum alloy phase with minimum matrix phase gives higher strength.
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