It Might Not Be Tooth Pain: When Facial Nerve Pain Masquerades as a Dental Problem
I offered those words to a patient last Monday. Meeting her for the first time, I wouldn’t be exaggerating to say she was in significant distress.
Another doctor had seen her but declined treatment. Without communicating with him, I can’t know his rationale — but her problem had persisted. Actually, it worsened, leaving her truly distraught.
When I examined her mouth, I was surprised.
It appeared perfectly healthy. There were no major cavities. No fractured tooth parts. No obvious, glaring reason for her discomfort. She displayed some tooth erosion near the painful site — erosion often creates issues — yet she insisted those teeth felt fine. She acknowledged it and wanted future treatment, but that wasn’t today’s priority.
I took an X-ray, and guess what appeared?
Nothing.
When the Tooth Isn’t the Problem
When situations like this arise, I tend to think outside the box. Perhaps the pain isn’t originating from a tooth at all. Discussing this with her, she revealed a previously diagnosed condition in which the head and facial nerves caused severe pain — a condition that had already sent her through a frustrating cycle of dental work that never brought relief.
She had been diagnosed with neuralgia. It’s worth taking a moment to understand what that actually means.
Neuralgia describes pain that results from nerve damage or irritation.
The discomfort typically follows the nerve’s path through the body. The damage itself can stem from accidents, trauma, or even cellular-level harm.
This is why facial nerve pain that feels like a toothache is one of the most commonly misunderstood — and misdiagnosed — conditions in dentistry.
According to research published in the Journal of Multidisciplinary Healthcare, the majority of trigeminal neuralgia patients are initially seen by a dentist, and many undergo unnecessary dental procedures before the correct neurological diagnosis is made.
Two Types of Neuralgia Worth Knowing About
Postherpetic Neuralgia
As we age, the chickenpox virus can reappear — sometimes multiple times. You may know this illness as shingles. It typically follows nerve pathways along the torso, causing severe pain as it progresses. When the nerve damage from shingles persists after the outbreak resolves, the resulting chronic pain is called postherpetic neuralgia. The chickenpox virus essentially damages the nerve, leaving behind intense, lingering pain that can localize to the face and jaw — and feel exactly like a dental problem. The American Academy of Endodontists has documented this connection extensively.
Trigeminal Neuralgia
The second type is named for the affected nerve: the trigeminal nerve. This nerve has three branches feeding into our face and jaws. The neuralgic element usually impacts the second and third branches — the ones that provide sensation to our upper and lower jaws. When this nerve is irritated, it can trigger agonizing pain that focuses precisely on a tooth. Naturally, when that happens, we assume we have a toothache. We recoil from the discomfort, we point to the tooth, and we want it fixed. That’s how intense it feels. But the tooth is innocent.
It’s the nerve.
How I Distinguish Nerve Pain From Tooth Pain
This is the tricky part. Many factors can cause overlapping discomfort, and sorting through them takes careful clinical reasoning.
In my experience, cold sensitivity is one of the most reliable indicators of genuine tooth pain rather than neuralgia. A tooth with pulpal disease will respond intensely and often prolongedly to cold — whereas a neuralgic episode tends to be triggered by other stimuli, like light touch, wind, or chewing.
For this patient, I performed a cold test. She reacted quite intensely. After more discussion, I sensed her tooth really did have a problem — though it might overlap with the neuralgia she already carried.
My immediate goal was to resolve the acute pain and sort through any remaining symptoms afterward. We chose to save the tooth rather than remove it, and I performed a root canal procedure. The treatment went well.
The unanswered question, of course, was how she would feel afterward. Was this the entire issue, or was there more to it? When I called her that evening, she was very happy — she felt significantly better. Hopefully, that’s the end of it for her.
This isn’t the first time I’ve untangled a pain situation like this. If you’d like to read about a similar case involving multiple dental opinions before the right answer was found, this post walks through the full story.
When to Seek Help for Unexplained Head and Neck Pain
If you’re experiencing facial nerve pain in your head, face, or neck that hasn’t responded to dental treatment — or that your dentist can’t explain after a thorough exam — please don’t give up. The source may not be a tooth at all. And if a tooth is involved, the picture may be more complex than a straightforward cavity or fracture.
There are options. The intersection of dental and neurological pain is real, and navigating it requires a dentist willing to think beyond the obvious. I’d welcome the chance to work through it with you.
Please call us at 440.951.7856 to schedule a visit. I look forward to meeting you and helping you find relief.
Jeffrey Gross, DDS, FAGD, is an Ohio-licensed general dentist and is on the staff of Case Western Reserve School of Dental Medicine.