Periodontics: Instrumentation and Assist · CDA

What is a principal limitation of using power-driven ultrasonic instruments for periodontal therapy?

  1. They are ineffective on heavy calculus
  2. They cannot reach deep pockets at all
  3. They generate aerosol and require stringent infection-control measures
  4. They are slower than manual instruments
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Correct answer: They generate aerosol and require stringent infection-control measures

While effective for debridement, ultrasonic scalers produce aerosol, requiring additional infection control precautions especially important in the context of respiratory pathogens.

Difficulty: Medium Question 12 of 22

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