TMJ

Jaw Pain, Clicking and Headaches: Why Your TMJ Might Really Be a Neck Problem

By Dr. Joe Sas, DC · November 2, 2026

If you've got jaw pain, clicking, or headaches at your temples, you've probably already tried the usual fixes: a night guard, soft foods, jaw stretches, maybe muscle relaxers. Sometimes they help. Often they only take the edge off, and the jaw goes right back to aching.

When that happens, the problem usually isn't just the jaw. In my experience, the piece most often missed in TMJ care is the top of the neck.

I've done extensive post-graduate training in TMJ/TMD care. The core idea is simple: the jaw and the upper neck are wired together. If you don't address that connection, a lot of jaw treatments stall.

The jaw–neck connection, in plain English

Your jaw is run mostly by the trigeminal nerve. It controls your chewing muscles and carries pain and position signals from your face and jaw.

The nerves from the top of your neck, especially the C1 and C2 segments right under your skull, send their signals into the same relay station in the brainstem as the trigeminal nerve. Researchers call it the trigeminocervical complex.

That shared wiring explains a lot:

Upper-neck problems can show up as jaw and face symptoms. Irritation or poor motion at C1–C2 feeds signals into the system that controls your jaw muscles. That can drive clenching, muscle guarding and jaw pain.
Jaw problems can show up as neck pain and headaches. It works both ways.
Posture matters. When your head drifts forward toward a screen, the upper neck has to work differently, and your jaw's resting position shifts with it.

So if the upper neck is out of balance, you can splint the jaw, stretch the jaw and rest the jaw, and the input driving the problem is still there. That's why many people with "stubborn TMJ" never get lasting relief.

Signs your TMJ might be coming from your neck

Jaw pain plus neck stiffness, especially at the base of the skull
Headaches that start at the back of the head and wrap toward the temples
Jaw symptoms that get worse after long desk days, driving or poor sleep
Jaw trouble that started after a car accident, fall or sports hit, even if the jaw itself wasn't struck (see whiplash and the jaw)
A night guard that protects your teeth, but your jaw still hurts
Ear fullness or ringing with no ear infection

How we figure it out: test, don't guess

Your first visit includes:

A detailed history: when it started, what makes it worse, clenching or grinding, past injuries, and what you've already tried
A jaw exam: how your jaw opens and closes, whether it deviates to one side, clicking, and which chewing muscles are overworked
An upper-neck and neurological exam: motion at C1–C2, muscle tension at the base of the skull, reflexes and sensation
Motion Study X-Rays when the exam points to the neck, so we can see how your upper neck actually moves

If your neck is part of the problem, we'll show you. If it isn't, and the issue is mainly dental or joint damage, I'll tell you that too.

What TMJ treatment looks like here

When the upper neck is involved, a typical plan includes:

Gentle, precise adjustments to the upper neck (C1–C2) to restore normal motion and calm the nerve input feeding your jaw muscles
Gentle jaw work to improve how the joint glides and to balance both sides
Soft-tissue work on the chewing muscles, temples and the base of the skull
Home strategies, like jaw resting position, simple exercises, and daytime clench checks
Desk and sleep fixes so your head isn't pulling forward all day (posture care)
Re-exams to measure your opening range, pain and headache frequency, so we know it's working

Nothing is forced. TMJ care should feel controlled and comfortable.

Working with your dentist

TMJ is a team sport. Your bite, teeth and night guard are your dentist's world. The upper neck, muscles and joint mechanics are ours.

We co-manage TMJ cases with dentists, orthodontists and oral surgeons around St. Louis. When we fix the neck side and your dentist handles the bite, patients tend to get further than with either one alone. Don't have a dentist? We'll point you to one we trust.

Red flags: see a doctor or dentist right away

Your jaw is locked open or closed and you can't move it
Jaw pain after a hard hit to the face, especially if your bite suddenly feels wrong (possible fracture)
Swelling, fever, or a bad taste in your mouth (possible dental infection)
Jaw pain with chest pain, shortness of breath, or pain down the left arm. Call 911, because jaw pain can be a sign of a heart attack.
Numbness in your face, or a new lump in your jaw or neck

The bottom line

If you've treated your jaw and it keeps coming back, look one level up. When the upper neck is driving the problem, fixing it is often the missing piece. We'll test first, show you what we find, and work alongside your dentist when that's the right call.

Learn more about our TMJ and jaw pain treatment in St. Louis, see how neck-related headaches work, or book an exam.

Frequently Asked Questions

Often, yes, especially when the upper neck and jaw muscles are part of the problem, which is common. Dr. Sas has extensive post-graduate training in TMJ/TMD care and works with your dentist on the bite and dental side.

The nerves from the top of your neck (C1–C2) and the trigeminal nerve that runs your jaw feed into the same relay station in the brainstem. If the upper neck is irritated or not moving well, it can drive jaw muscle tension, clenching and pain. That's why treating only the jaw sometimes stalls.

Maybe. A night guard protects your teeth from grinding, and your dentist decides whether you need one. It doesn't fix an upper-neck problem that's feeding jaw tension, so many patients do best with both.

It varies with how long you've had it and what's driving it. We measure jaw opening, pain and headache frequency at re-exams, so you'll see whether it's working instead of guessing.