National Dental Examining Board of Canada (NDEB) Practice Exam

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What is the most common cause of trigeminal neuralgia?

Compression of the cranial nerve V sensory root
Bacterial infection
High blood pressure
Exposure to cold weather

The correct answer is: Compression of the cranial nerve V sensory root

Trigeminal neuralgia is a condition that causes intense facial pain, typically on one side of the face. While there are several potential causes of this condition, the most common cause is compression of the cranial nerve V sensory root. This can occur due to age-related changes, tumors, or other conditions that put pressure on the nerve. It is important to note that while bacterial infections, high blood pressure, and exposure to cold weather may all contribute to facial pain, they are not the primary cause of trigeminal neuralgia. Thus, they are not the most common cause of this condition.