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!

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Changes in direction of groups of enamel prisms:

Increase enamel strength
Are indicative of underlying pathology
Have no functional importance
Facilitate enamel repair

The correct answer is: Have no functional importance

The fact that changes in direction of groups of enamel prisms have no functional importance is supported by studies that have shown no difference in enamel strength with these changes. Options A and D are incorrect because they claim the changes increase enamel strength and facilitate enamel repair, respectively, but there is no evidence to support these claims. Option B is also incorrect because changes in direction of groups of enamel prisms can occur naturally and do not always indicate underlying pathology.