Which of the following statements is true of investments used for casting?
A) The refractory material in most dental investment is a form of calcium.
B) The binder, but not the refractory material, contributes to expansion of the investment.
C) The refractory material, but not the binder, contributes to expansion of the investment.
D) The binder and the refractory material contribute to expansion of the investment.
E) The binder and the refractory material contribute to contraction of the investment.
Correct Answer:
Verified
Q4: Following removal of a ring from the
Q5: The required temperature of a burnout oven
Q7: If molten alloy were cast into a
Q8: The total expansion of the investment is
Q8: To prevent premature freezing in the sprue
Q9: The amount of thermal expansion of the
Q11: The purpose of a sprue is to:
A)
Q12: Before investing,a surfactant may be used to:
A)
Q13: A casting alloy is heated in a
Q14: The accuracy of a cast crown may
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents