This article is general information for our patients, not a diagnosis. If something in your mouth hurts, changes, or worries you, have it examined.
A jaw that aches in front of the ear, clicks when you chew, or feels tight first thing in the morning is one of the most common things I see — and usually nothing serious is wrong. Around one in three people run into jaw trouble at some point, and roughly one in ten adults has it right now.
One point up front: none of the clues below is a diagnosis on its own. The jaw refers pain freely and borrows symptoms from teeth, ears and muscles, so a sign pointing one way can point somewhere else once the rest of the picture is in. What settles it is putting it together at once — what you tell me, the exam, how the joint and teeth respond to specific tests, and an X-ray where one helps. That’s a chair job, not a checklist you finish at home.
What’s going on in there
The TMJ (temporomandibular joint) is the jaw joint just in front of each ear. It hinges, then slides forward out of its socket to open wide, with a small disc of firm cartilage cushioning the bones. TMD (temporomandibular disorder) is the umbrella term for the problems that make it hurt, click or stiffen — not one disease but a few patterns, often more than one at once.
- Muscle pain — by far the most common: the chewing muscles in the cheek and temple get overworked and achy.
- A slipped cushion (disc displacement) — the disc slips out of position, which tends to cause clicking and, less often, catching or locking.
- Joint wear — wear-and-tear arthritis inside the joint, tending toward a grating feel and morning stiffness, more often with age.
Which pattern matters, because the muscle type — the one most people have — usually responds well to rest and simple care.
Why it can feel like an earache
The joint sits millimetres from the ear canal and shares some of the same nerves, so jaw pain is often felt deep in the ear — which is why many people chase an ear problem for weeks first. It can also travel to the temple, down the jawline to the neck, or toward the back teeth, sometimes with fullness or ringing. The clue I lean on is whether it changes with jaw use: pain that worsens with chewing, yawning or long talking — in an ear a doctor has already found healthy — points toward the jaw. Even so, that’s a pointer, not proof.
| Clue | Points toward the jaw (TMD) | Points toward an ear infection |
|---|---|---|
| Chewing, yawning, long talking | Tends to make it worse | Makes little difference |
| Hearing | Usually normal; sometimes fullness or ringing | Often muffled or reduced |
| Fever or discharge from the ear | Usually absent | Common |
| A doctor’s look in the ear | Healthy ear | Inflamed eardrum or canal |
What tends to set it off
TMD is usually an overload problem, not a single injury: flares happen when several things stack up past what the joint and muscles tolerate.
- Clenching and grinding (bruxism) — the big one. Hours of unconscious muscle work, asleep or at a screen, leave the chewing muscles aching; morning tightness, flattened or chipped teeth, and a partner who hears grinding tend to go with it.
- Stress — raises muscle tension and lowers your pain threshold at once, so flares often land during exams, deadlines or hard stretches.
- Extra chewing hours — gum, nails, pens and ice add load the joint was never budgeted for.
- Sustained wide opening — a long dental appointment or wisdom tooth removal can set off a temporary flare that usually settles within weeks.
- Posture — a forward-head desk position keeps neck and jaw muscles working overtime; neck and jaw pain are frequent companions.
Less often a blow to the jaw, whiplash, very flexible joints or certain arthritis play a part — part of why I take a proper history rather than assume.
A click that doesn’t hurt
A jaw that clicks but doesn’t hurt or lock is usually a harmless mechanical quirk, not a disease to fix — just the jawbone popping over a slightly out-of-place disc as it opens and closes. Plenty of people click for years with no pain and no consequences, and a click alone wouldn’t even send me to an X-ray.
What earns a closer look is a click that turns painful, or a jaw that starts to catch or stick on the way open. If it catches, don’t force it — relax and gently wiggle side to side to free it. Catching that’s getting more frequent, or a jaw that has stopped clicking and now won’t open as far, can mean the disc is staying out of position, and is worth examining.
Settling a flare at home
Treat a flared jaw like a sprained ankle — protect it and let it settle. Around 70-80% of TMD improves substantially with simple, non-surgical care within three to six months, and much of that is in your hands: expect clear easing inside two weeks, with full settling often longer.
| What to do | How | Why it helps |
|---|---|---|
| Soft-diet stint | Pasta, eggs, fish, soups for a week or two; cut food small | Lowers the daily workload so tired muscles recover |
| Moist heat | Warm, wet facecloth on cheek and temple, 10-15 minutes, a few times a day | Relaxes muscle, improves blood flow |
| Massage and gentle exercises | Slow circles on the cheek muscle; then, tongue on the roof of the mouth, open slowly to just before discomfort, hold a moment — a few repeats | Releases tension, keeps the joint moving |
| Teeth apart, lips together | Teeth touch only when you’re eating | Breaks the daytime clenching habit |
| Drop the extra chewing | No gum, nails, pens or ice for now | Removes load the joint doesn’t need |
| Supported yawning | A fist gently under the chin as a yawn comes | Stops a sore joint opening too wide |
| Ease the soreness | An over-the-counter anti-inflammatory painkiller, with food, short-term if it’s safe for you | Calms inflammation in muscle and joint |
A pharmacist can tell you which painkiller suits you and how much — important if you’re on other medicines or have a health condition. Give it a full two weeks; most flares respond. If yours doesn’t, or keeps coming back, that’s when an exam earns its keep.
Do night guards actually help?
Often, yes — when grinding or clenching is driving the pain. A night guard (an occlusal splint) is a precisely fitted hard cover, usually for the upper teeth, worn while you sleep.
I’ll be straight, because guards are sometimes oversold. What one reliably does is protect the teeth — grinding can wear, chip and crack them, and the guard takes that damage instead. For pain, many people improve, especially when night-time grinding is clearly the driver; some notice little change, because daytime habits or stress are doing the work, which a night-only appliance can’t reach. So I pair a guard with the self-care above and review after a few weeks; if grinding is part of your picture, it’s worth reading how grinding and clenching damage teeth, and what we do about it. One thing we deliberately don’t do is grind down healthy teeth to treat TMD: the idea that a slightly-off bite causes most jaw pain hasn’t held up, and reshaping teeth can’t be undone.
What we do when you come in
An assessment here is mostly careful listening and a hands-on exam. I ask about the pain pattern, sleep, stress, habits and health, then measure how far you open (around 40 mm, about three finger-widths, is typical), watch whether the jaw tracks straight, feel the joint and muscles for tenderness, and listen for clicking versus grating. I look hard at the teeth too, because a cracked or inflamed back tooth can throw pain toward the joint and imitate TMD convincingly. X-rays come in only when they’d change the plan — suspected joint wear, or after an injury.
None of those steps stands alone — it’s reading them together, alongside what you’ve told me, that points to an answer, and only in the chair. Treatment then climbs from the gentlest rungs: the self-care routine, short-term anti-inflammatory relief, a night guard where grinding is involved, and jaw and neck physiotherapy (good evidence behind it). If pain runs past about three months despite that, if opening stays very limited (below about 25 mm, under two finger-widths), or if anything unusual turns up, I refer you to a jaw surgeon (oral and maxillofacial surgeon) or a facial-pain specialist.
When jaw pain needs prompt care
Most jaw pain can wait for a routine visit. These are the exceptions I want seen quickly.
- A locked jaw — stuck nearly shut and unable to open, or stuck open and unable to close — should be seen as soon as we can, through our emergency dental care in Barrie.
- Jaw pain after an injury — a fall, a sports impact, a blow — needs checking for a break.
- A bite that’s changing — teeth that suddenly don’t meet the way they used to can mean something is shifting in the joint.
- Change that keeps worsening — opening that keeps shrinking, swelling over the joint, facial numbness or weakness, or new one-sided hearing or balance trouble.
- Over 50 with a new temple headache plus a jaw that cramps or tires after a few minutes of chewing — see a doctor straight away. This can point to an inflamed blood-vessel condition (giant cell arteritis) that’s treatable but won’t wait.
- Fever with facial swelling points toward infection rather than TMD — see our guide to toothache and dental infection — and shouldn’t wait either.
Each is uncommon, but the reassurance about ordinary jaw pain only holds once they’re ruled out.
Will I need surgery?
Almost certainly not. Surgery has a place — joints damaged by serious arthritis, a disc that stays stuck despite months of proper non-surgical care, or repeated full dislocations — and the usual procedure is a specialist wash-out through two small needles (arthrocentesis), which helps roughly 70-80% of carefully chosen cases at six to twelve months. Open joint surgery is rare. For the typical aching-muscle, clicking-joint jaw it isn’t on the table — most people who stick with the simple, reversible care above never need more.
This guide is part of our Adult Patient Information library. If your jaw has been bothering you, we’re happy to take a proper look — call Prince William Way Dental Care at 705-721-9229 or book a visit through our contact page, and we’ll start with the simplest care that works.
