Moisture Control and Isolation Techniques · CDA

Which isolation material is most useful when placing sealants?

  1. Gauze squares only
  2. Cotton rolls and dry angles
  3. A properly placed rubber dam
  4. Saliva ejector used alone
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Correct answer: Cotton rolls and dry angles

Cotton rolls and dry angles provide adequate isolation for sealants. They maintain dryness without the need for full rubber dam placement.

Difficulty: Medium Question 8 of 20

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