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!

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.