National Dental Examining Board of Canada (NDEB) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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.

Start Multiple Choice Practice Test
Start Flash Cards

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 does the IAN block needle penetrate aside from the oral mucosa?

  1. Masseter muscle

  2. Buccinator muscle lateral to the pterygomandibular raphe

  3. Temporalis muscle

  4. Medial pterygoid muscle

The correct answer is: Buccinator muscle lateral to the pterygomandibular raphe

The IAN (Inferior Alveolar Nerve) block needle penetrates through the oral mucosa to reach the inferior alveolar nerve. The masseter muscle (A), temporalis muscle (C), and medial pterygoid muscle (D) are all deep facial muscles that would not be reached by the IAN block needle. The buccinator muscle (B), on the other hand, is a superficial muscle located on the lateral side of the pterygomandibular raphe, making it the only possible option for the IAN block needle to penetrate through.

More Questions Like This