National Dental Examining Board of Canada (NDEB) Practice Exam

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When is enamel eruption completed?

  1. Following eruption

  2. Prior to eruption

  3. During teething

  4. At birth

The correct answer is: Following eruption

Enamel eruption cannot be completed at birth as newborns are not born with teeth. Neither can it be prior to eruption as it would then be considered pre-eruptive enamel formation. During teething, enamel may be emerging, but it is not yet fully erupted. Therefore, enamel eruption is completed following eruption.

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