The CHX and NaOCl Interaction Quiz
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Questions and Answers

Which substance is responsible for the color change and precipitate when NaOCl and CHX are combined?

  • EDTA
  • methemoglobin
  • tooth staining
  • 4-chloroaniline (PCA) (correct)

    • What is the effect of increasing the concentration of NaOCl when 2% CHX is used?

  • Increase in precipitate size (correct)
  • Change in color but no precipitate formation
  • Decrease in precipitate size
  • No effect on precipitate size

    • What concern has been raised regarding the color change caused by the combination of NaOCl and CHX?

  • Tooth sensitivity
  • Tooth decay
  • Tooth staining (correct)
  • Tooth discoloration

    • What is the potential consequence of the resulting precipitate interfering with the seal of the root canal obturation?

    <p>Root canal failure</p> Signup and view all the answers

    What toxic effect has been associated with short-term exposure to 4-chloroaniline (PCA)?

    <p>Cyanosis</p> Signup and view all the answers

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