Can TMJ cause tooth pain?

A tooth starts aching, you book a dentist, and the X-ray comes back clear. Or the pain moves around and you cannot point to one tooth. I hear this a lot in my physio practice, especially when the ache is still there after a filling or a root canal.

You are far from the only one, and there is a well-described reason for it. This article explains how your jaw muscles can send pain into your teeth, which signs point to a real dental problem, and why it pays to pause before anything permanent is done to a tooth.

Key takeaways

Yes, TMJ disorders can cause tooth pain. Tight chewing muscles can refer a dull, throbbing ache into healthy molars and premolars. In a study of people booked for a root canal, TMD was the only cause of the toothache in 8% and a contributing cause in another 20% (Daline et al., 2023).

• Tooth pain that gets worse with chewing or clenching and settles at rest can come from your jaw muscles.
• Make sure the cause is clear before any permanent treatment on a tooth.
• New or severe toothache still belongs with a dentist first.

How can jaw muscles make your teeth hurt?

A toothache with no visible cause in the tooth or gums is called a nonodontogenic toothache. A systematic review sorted these into eight groups, the first being muscle pain felt in the teeth (Yatani et al., 2014). You feel the pain in one place while it starts in another (Thomas et al., 2026). Animal research suggests why. In rats, 84% of the spinal nerve cells that responded to a tooth also responded to the masseter. This suggests that signals from both may share the same nerve cells on their way to the brain, which could explain why muscle pain can be felt as tooth pain (Takeda et al., 2005).

Referred pain from the jaw area is common. When tender spots in the head, neck and jaw muscles of 230 people with TMD were pressed, 85% felt pain somewhere else, often from the masseter (Wright, 2000). In a study of 25 women with muscle-related TMD, pressing on trigger points in the chewing muscles reproduced the pain they already knew from daily life (Fernández-de-las-Peñas et al., 2010).

For the teeth specifically, a 2025 review in the British Dental Journal says TMD pain can refer to the molars, more often the lower ones, and to the premolars, more often the upper ones. This dull, throbbing ache is easily mistaken for a dental problem (Edwards et al., 2025). The same mechanism lies behind TMJ ear pain and TMJ headaches.

How often is a toothache really coming from the jaw?

Most toothache does come from the tooth (Edwards et al., 2025), but the jaw is involved more often than people expect. US researchers checked 100 people booked for a root canal because of tooth pain for TMD before treatment. More than half (54%) had painful TMD. In 26% it was unrelated to the toothache, in 20% it contributed to it, and in 8% it was the only cause (Daline et al., 2023).

People with TMD in that study more often had pain in more than one tooth, and their tooth pain was stronger and lasted longer (Daline et al., 2023). Other jaw clues matter too. Clicking or grinding noises when you move your jaw, trouble opening your mouth fully, a jaw that locks and headaches around the temples are typical TMD symptoms (NHS, TMD), and worth mentioning alongside your toothache.

Why do your back teeth hurt when you clench?

Clenching links jaw and teeth in a second way. The NHS lists grinding your teeth as one of the causes of toothache (NHS, toothache). Grinding can wear teeth down or break them, which can make them more sensitive, and it can lead to lost fillings or even lost teeth (NHS, teeth grinding). So pain after clenching can also be real damage to a tooth that a dentist needs to see.

The muscle side adds to this. TMD pain, which clenching and grinding can make worse (NHS, teeth grinding), can refer into the molars (Edwards et al., 2025). In one reported case, pressure on the masseter sent pain into the lower molars (Handa et al., 2013). In the root canal study, teeth in people with TMD were also more often tender when tapped or pressed (Daline et al., 2023). If you are unsure whether you grind, read how do I know if I grind my teeth at night? or our teeth grinding page.

How do you tell a muscle ache from a real dental problem?

A real dental problem usually has a trigger in the tooth itself. The NHS names decay, an abscess, a cracked tooth, a broken filling and gum disease among the common causes (NHS, toothache). Sinus pain can also be felt in the teeth (Yatani et al., 2014).

With an irritated but healthy tooth nerve, pain from cold or sweet things fades within about two seconds. With an inflamed nerve that will not recover, called irreversible pulpitis, the pain is sharp, lasts more than 30 seconds after the trigger and also comes on by itself. An infection at the root tip can make biting on that one tooth hurt, and the tooth is usually tender when tapped. Swelling with spontaneous pain that gets worse on pressure can point to an abscess (Edwards et al., 2025).

Muscle pain behaves differently. Pain that gets worse when you move your jaw and better when you rest it is expected with TMD but not with pain from the tooth, and pressing on the masseter or temporalis may bring on your familiar ache (Edwards et al., 2025). None of these clues is proof on its own. In one reported case, a woman had cold sensitivity in a lower molar and had the nerve removed, yet the pain stayed until specialists at a dental college clinic traced it to a trigger point in the masseter (Handa et al., 2013).

Try it: the tooth-or-muscle check

I show this check to people who come to physio with a toothache their dentist could not explain. It does not replace a dental examination, but it gives you clear notes for your appointment, and it is based on the palpation dentists use to check for TMD (Edwards et al., 2025; Wright, 2000).

1. Find your masseter: put your fingertips on your cheek between ear and mouth corner and bite down briefly. The muscle that bulges is your masseter.
2. Press and wait: let your teeth come apart, then press firmly but not painfully for about five seconds, moving along the muscle in small steps. Repeat on your temple above the ear, where the temporalis sits.
3. Notice your familiar pain: if your known toothache appears or gets stronger, tell your dentist, as it can be a sign of referred pain from the muscle.
4. Keep a two-day log: note when the tooth hurts. Pain that builds with chewing, talking or clenching and eases at rest fits a muscle source.
5. Check the dental signs: sharp pain from cold or sweet drinks that lingers, or pain when biting on one tooth, points towards the tooth.

Why is rushing into dental treatment risky?

Treating a tooth will not remove pain that starts elsewhere. Yatani and colleagues conclude that unnecessary dental treatment should be avoided (Yatani et al., 2014), and a newer review warns that these toothaches can lead to unnecessary and irreversible treatment (Thomas et al., 2026).

People with ongoing tooth pain often feel sure a root canal or extraction will end it, but Canadian specialists argue treatment is only justified once a clear cause in the tooth is found (Kolbinson & Goulet, 2024). Long appointments with your mouth wide open can also flare TMD symptoms (Edwards et al., 2025). The NIDCR recommends starting with conservative care and avoiding treatments that permanently change your teeth or bite. Before any irreversible treatment, it advises discussing benefits, risks and alternatives and getting a second opinion from a qualified specialist (NIDCR, 2026).

What helps when your teeth hurt from your jaw?

In the moment

Eat soft foods, avoid chewing on the sore side, and skip gum and tough foods while your teeth or jaw hurt (NHS, toothache; NHS, teeth grinding). An ice or heat pack wrapped in a towel and gentle massage of the jaw muscles can ease the ache (NHS, TMD). See does heat or ice help jaw pain?

Long term

The NHS advice for TMD is to keep your teeth apart except when eating (NHS, TMD), and the NIDCR suggests cutting down habits like clenching, gum chewing and nail biting and practising relaxation (NIDCR, 2026). A physiotherapist can show you jaw exercises and massage (NHS, TMD), and our TMJ exercises page has gentle ones to start with. For daytime clenching, read can you stop clenching your jaw during the day?

How JawBuddy helps

JawBuddy is a digital companion for guided jaw exercises and self-management. Our separate medical programme, JawBuddy Therapy, includes a daily tooth contact check.

The app does not replace emergency care or an individual diagnosis from a qualified healthcare professional, so a new toothache always goes to your dentist first.

When should you see a doctor?

Get help right away

• Call 999 in the UK, 911 in the US or 112 in the EU if you have chest pain spreading to your arms, neck or jaw (NHS, heart attack).
• Go to A&E if you have toothache and the area around your eye or your neck is swollen, or if swelling in your mouth or neck makes it hard to breathe, swallow or speak (NHS, toothache).

Book an appointment soon

• See a dentist if your toothache lasts more than two days or does not settle with painkillers (NHS, toothache).
• See a dentist if you have toothache with a high temperature, pain when you bite, red gums, a bad taste in your mouth, or a swollen cheek or jaw (NHS, toothache).
• See a dentist if you grind your teeth and notice damage or sensitivity (NHS, teeth grinding).
• See a GP urgently or call 111 if you cannot eat or drink, or your jaw locks (NHS, TMD).

Your pain is real, even if the X-ray is clear

A clear X-ray does not mean you are imagining it. The pain may come from muscles you can learn to calm down. Try the tooth-or-muscle check today, write down what you notice, and bring up your jaw at your next dental appointment.

Our jaw pain page explains where jaw pain comes from, and the TMJ disorder guide covers how it is treated.