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.

When should a maxillary central incisor erupting in a lingually directed path be corrected?

After it reaches the occlusal plane
Before it reaches the occlusal plane
During early mixed dentition
After complete eruption

The correct answer is: Before it reaches the occlusal plane

A maxillary central incisor erupting in a lingually directed path should be corrected before it reaches the occlusal plane. This is because any correction after it has reached the occlusal plane could potentially cause damage or disturbance to the permanent teeth underneath. Additionally, correcting during early mixed dentition may be too early as the tooth is still developing and could potentially self-correct. Waiting until after complete eruption may also be too late and could lead to more complicated orthodontic treatment. Therefore, correcting before it reaches the occlusal plane is the ideal timing for correcting a lingually directed eruption.