National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the normal distance between the bottom of the sulcus and the alveolar crest in clinically normal gingiva?

1.0-1.5mm
1.5-2mm
2.0-2.5mm
2.5-3mm

The correct answer is: 1.5-2mm

The normal distance between the bottom of the sulcus and the alveolar crest in clinically normal gingiva is generally 1.5-2mm. This can vary slightly depending on factors such as age and oral hygiene, but the majority of healthy subjects fall within this range. The other options are incorrect because they either fall below or above the standard range for normal gingival measurements. Option A is too low and could indicate periodontal disease or recession, while options C and D are above the normal range and could suggest inflammation or the presence of a deep periodontal pocket. Overall, option B is the most accurate and commonly accepted measurement for clinically normal gingival health.