National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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How does polycarboxylate cement bond to enamel?

  1. Mechanically

  2. By micro mechanical retention

  3. Chemically

  4. By fusion at high temperature

The correct answer is: Chemically

Polycarboxylate cement chemically bonds to enamel by forming bonds with the calcium ions in the enamel. This allows for a strong and durable bond between the cement and the tooth. Options A and B, which suggest a mechanical bond, are incorrect as polycarboxylate cement does not rely on physical grip for its bonding mechanism. Option D, which suggests fusion at high temperatures, is incorrect as polycarboxylate cement does not require high temperatures for its bonding process.

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