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Trigeminal neuralgia — NDEB AFK MCQ

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HardBiomedical SciencesTrigeminal neuralgiaNDEB AFK

A 62-year-old has brief electric-shock facial pain triggered by touching the upper lip and brushing. Dental examination and periapical radiographs are normal, and episodes last seconds with pain-free intervals. What is the most likely diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Trigeminal neuralgia

Brief shock-like paroxysms triggered by light touch with normal dental findings are classic for trigeminal neuralgia. Irreversible pulpitis usually causes tooth-related thermal pain that lasts longer and localises differently. The pearl is to avoid irreversible dental treatment when the pain pattern is neuropathic and dental findings are absent.

Reference: Canadian oral medicine/orofacial pain references; NDEB KSAs 2024