Which of the following statements is true regarding the strength of dental amalgam?
A) Amalgams are stronger in compression than composites but weaker than glass ionomers.
B) Amalgams are relatively weak in tension and shear and therefore require adequate bulk to resist breaking.
C) Some high-copper amalgams gain approximately 80% of their strength in the first hour.
D) High-copper amalgams have a much higher compressive strength than low-copper amalgams once they have completely set at about 24 hours.
Correct Answer:
Verified
Q9: Polishing of amalgam restorations should be:
A) dry
Q10: In the low-copper amalgams,zinc was responsible for
Q11: What mechanical device mixes the dental amalgam
Q12: Which of the following statements is true
Q13: Which of the following is true of
Q15: Which of the following may happen if
Q16: Undertriturated amalgam alloy has a _ appearance
Q17: Creep is a phenomenon associated with the
Q18: When spherical high-copper dental amalgam alloys are
Q19: Which of the following metals is used
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