23/11/2025
Ever wondered why a toothache can sometimes turn into a headache?
The answer lies in the trigeminal nerve, one of the largest and most complex nerves in the head. This nerve carries sensory signals from the face, including your teeth, jaw, and gums, straight to the brain. When a tooth is inflamed or infected, it can overstimulate the trigeminal nerve, which may then trigger pain signals that spread to the head, causing a headache.
Dental issues like cavities, abscesses, or gum disease can all irritate this nerve, which explains why dental pain often radiates beyond the mouth. To manage the pain effectively, treating the underlying dental source is essential, not just the headache. In some cases, dentists and neurologists collaborate to ease symptoms by addressing both the oral infection and the nerve pathways involved.
This trigeminal connection also shows how closely oral health is linked with overall health. Routine dental check-ups, early treatment of tooth decay, and strong oral hygiene habits can prevent small problems from developing into severe, nerve-driven headaches.
So if a toothache starts spreading into your head, it is not random—it is your trigeminal nerve signalling a deeper issue. Protecting your oral health may help prevent days of unnecessary headache and discomfort.
🔹 Disclaimer: This post is for educational purposes only and not a substitute for professional dental advice.
