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.

Lichen planus occurs most frequently on what area?

Tongue
Palate
Buccal mucosa
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.