Dental Bleaching Agents Effects Quiz

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Questions and Answers

What is the main cause of tooth sensitivity after using in-office bleaching technique with H2O2 and heat?

  • Decrease in enamel hardness
  • Penetration of the bleaching agent into enamel and dentine (correct)
  • Effect on composite fillings
  • Effect on pulp

What effect do bleaching agents have on enamel hardness?

  • Restore enamel hardness
  • Increase enamel hardness
  • No effect on enamel hardness
  • Decrease enamel hardness (correct)

What may happen when the bleaching agent penetrates the enamel and dentine?

  • External cervical resorption
  • Cervical resorption
  • Surface roughening of the restoration
  • Transient reduction in pulpal blood flow (correct)

What happens to composite fillings after bleaching?

<p>Surface roughening of the restoration (B)</p> Signup and view all the answers

What condition may occur when using H2O2 of more than 30% concentration during bleaching?

<p>External cervical resorption (A)</p> Signup and view all the answers

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