Zinc oxide-eugenol has what characteristics?
  1. Oil-based, low strength, has a calming effect of pulp and acts as temporary cement
  2. Water-based, low strength, irritating effect of pulp and acts as permanent cement
  3. Oil-based, highly acidic, strong and acts as temporary cement
  4. Oil-based, low acidity, low strength and acts as permanent cement
Explanation
Answer: A - Zinc oxide-eugenol is oil-based, low in strength, has a calming effect on pulp, and acts like temporary cement. The calming effect of pulp makes zinc oxide-eugenol useful when dealing with vulnerable tubules.
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