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.

In primary molars, which cusp has the largest pulp horn?

Mesio buccal
Disto buccal
Lingual
Distal

The correct answer is: Mesio buccal

The Mesio buccal cusp is located in the front inside of a primary molar, and generally has a larger pulp horn compared to the other cusps. The Disto buccal cusp is located in the back inside of the molar and typically has a smaller pulp horn, making it an incorrect choice. The Lingual cusp is located on the back of the tooth and also has a smaller pulp horn, making it an incorrect choice. The Distal cusp is located on the side of the tooth and is not typically associated with a larger pulp horn, making it an incorrect choice as well. Therefore, option A is the correct answer for this question.