National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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Lichen planus occurs most frequently on what area?

  1. Tongue

  2. Palate

  3. Buccal mucosa

  4. Gums

The correct answer is: Buccal mucosa

Lichen planus is an inflammatory skin disease that can also affect the mucous membranes. Although it can occur on various parts of the body, it most commonly affects the buccal mucosa (inner lining of the cheeks). This is because the buccal mucosa is more prone to irritation and injury compared to other areas in the mouth, such as the tongue, palate, or gums. While lichen planus can occur in these areas as well, it is less frequent and might be a sign of a more severe form of the disease. Therefore, options A, B, and D are not the most common or frequent areas for lichen planus to occur.

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