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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The Plaque Index of Silness & Loe measures what?

  1. Speed of plaque formation

  2. Quantity of plaque at gingival margin

  3. Depth of gum pockets

  4. Strength of enamel

The correct answer is: Quantity of plaque at gingival margin

The Plaque Index of Silness & Loe measures the quantity of plaque at the gingival margin. This index specifically measures the thickness of plaque at the gumline, rather than the speed of plaque formation (A), depth of gum pockets (C), or strength of enamel (D). This index is a useful measure for monitoring oral health and evaluating the effectiveness of oral hygiene habits.