Which of the Following Statements Is True Concerning the Acidity

question 30

Multiple Choice

Which of the following statements is true concerning the acidity of zinc phosphate cement?

• A) Zinc phosphate cement has a high acidity throughout the time of service.
• B) The acidity of zinc phosphate cement is initially low, but becomes neutral within 24 to 28 hours.
• C) Pulpal protection is not recommended in deep cavity preparations when zinc phosphate cement is used, as the low acidity soothes the pulp.
• D) Zinc phosphate cement is incompatible with dentin bonding systems.

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