Which of the following statements is true of investments used for casting?
A) The refractory material in most dental investments is a form of calcium.
B) The binder and the refractory material contribute to expansion of the investment.
C) The binder and the refractory material contribute to contraction of the investment.
D) The binder, but not the refractory material, contributes to expansion of the investment.
E) The refractory material, but not the binder, contributes to expansion of the investment.
Correct Answer:
Verified
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