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!

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The surface of primary molars requiring the least amount of reduction for stainless steel crowns is which one?

  1. Lingual

  2. Buccal

  3. Mesial

  4. Distal

The correct answer is: Lingual

The surface of primary molars that requires the least amount of reduction for stainless steel crowns is the lingual surface. This is because the lingual surface is the strongest and most stable surface of the tooth, making it better able to support the crown without needing as much reduction as the other surfaces. The buccal, mesial, and distal surfaces are more susceptible to damage and decay, so they need to be reduced more in order to ensure a stable and durable crown. Therefore, options B, C, and D are incorrect.