Waterline Management and Microbial Control · CDA

Biofilm in dental waterlines is best described as:

  1. A harmless protective surface coating
  2. A community of microorganisms on surfaces
  3. A disinfectant layer applied to tubing
  4. Mineral residue left after evaporation
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Correct answer: A community of microorganisms on surfaces

Biofilm consists of microorganisms embedded in a protective matrix. It can harbor pathogens and requires active control.

Difficulty: Medium Question 3 of 20

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