Zinc polycarboxylate cement is no longer usable when it:
A) becomes oily on the surface because of the oxygen-inhibited layer
B) loses its gloss and becomes stringy
C) has a creamy appearance
D) is mixed for longer than 10 seconds
Correct Answer:
Verified
Q2: Most metal-free restorations can be cemented only
Q3: When cement is mixed to deliver a
Q4: In most cases,cements have _ strength and
Q5: _ cement should be removed with alcohol
Q7: By placing a _ provisional restoration,the dentist
Q8: The composition of hybrid ionomer cement is
Q9: Expansion of _ cement as it absorbs
Q10: The margins of indirect restorations using _
Q12: Which of the following statements is true
Q13: _ incorporation of zinc phosphate powder into
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