Can anxiety cause teeth clenching?

You notice it in the middle of a worried thought or right before a hard conversation: your back teeth are pressed together and your cheeks feel like stone. If you live with anxiety or panic attacks, you might be wondering whether that clenched jaw is part of it. You have plenty of company, because a meta-analysis estimates that around one in four people clench or brace their jaw while awake (Zieliński et al., 2024).

Below I go through what research actually shows about anxiety and clenching, why daytime clenching and night-time grinding behave differently, and how anxiety medicines can play a part. Then you get a tracking exercise I use in practice and the steps with the best support.

In short

Anxiety is linked to teeth clenching, most clearly during the day. In a Canadian lab study, people with high trait anxiety had more active jaw muscles and clenched harder than less anxious people (Rofaeel et al., 2021). The link with night-time grinding is less consistent, and the studies show association rather than proof that anxiety causes clenching.

• The strongest link is with awake bruxism, the clenching and bracing you do while awake.
• Some antidepressants used for anxiety, including SSRIs, have been reported to bring on clenching and jaw pain.
• Reminders that help you catch clenching can help, and anxiety itself has effective treatments.

Is anxiety linked to teeth clenching?

Yes, and the link is clearest for daytime clenching. It helps to know what researchers mean by clenching first. An international consensus group defines sleep bruxism as chewing muscle activity during sleep, and awake bruxism as repeated or sustained tooth contact, or bracing and pushing the lower jaw forward, while you are awake. In otherwise healthy people, the group sees bruxism as a behaviour rather than a disorder (Lobbezoo et al., 2018).

Several studies connect anxiety with that daytime behaviour. Among 181 women attending a jaw pain clinic in Brazil, higher anxiety scores went along with self-reported awake bruxism, but not with sleep bruxism (Tavares et al., 2016). In the Canadian study, researchers recorded the main chewing muscle (the masseter, at the side of your jaw) of 43 healthy adults during 15 minutes of silent reading. Those in the high trait anxiety group had more muscle activity overall, and their spontaneous clenching episodes were stronger, although they did not clench for longer in total (Rofaeel et al., 2021).

An Italian team used smartphone check-ins to ask dental students what their jaw was doing during the day. How often students reported tooth contact, jaw bracing, clenching or a relaxed jaw differed between groups with different anxiety and depression scores, and the authors conclude these behaviours were more common in students with anxiety and depression traits. Grinding did not differ between groups (Saracutu et al., 2025). None of these studies can say whether the anxiety or the clenching came first.

Why do I clench my jaw when I'm anxious?

Nobody can pin down the exact mechanism from these studies. What they do show is that people with high trait anxiety used their masseter more during a quiet reading task and clenched harder when they did clench, although the background muscle activity that simply holds the jaw in position was the same (Rofaeel et al., 2021). The authors suggest trait anxiety may contribute to overloading the jaw muscles.

If tightness is your main complaint, why does my jaw feel tight? covers other causes too.

Does anxiety cause teeth grinding at night?

Here the evidence is genuinely mixed. A systematic review of eight studies in adults found that three showed no link between general anxiety and sleep bruxism, while two found one. The two studies that measured panic and agoraphobia symptoms both found higher scores in people with sleep bruxism, but bruxism in those studies was probable rather than confirmed in a sleep lab (Polmann et al., 2019).

The NHS calls stress and anxiety the most common cause of teeth grinding, which can happen while you are awake or asleep (NHS, teeth grinding). Cleveland Clinic notes that night-time grinding tends to do more harm because you do not notice it, while daytime clenching may not need treatment if you can build awareness and reduce stress (Cleveland Clinic, 2023). For grinding in your sleep, our teeth grinding page goes into more detail.

Can anxiety medication cause clenching?

It can. The NHS lists medicines for sleep problems, depression or anxiety among the causes of teeth grinding (NHS, teeth grinding), and Cleveland Clinic names SSRIs specifically (Cleveland Clinic, 2023).

A review of published case reports described antidepressant-associated bruxism and jaw pain most often with fluoxetine, sertraline and venlafaxine. Symptoms could start within 3-4 weeks of beginning the medicine and settle within 3-4 weeks after stopping it, switching to another drug or adding buspirone. How often this happens is unknown (Garrett & Hawley, 2018).

A Turkish study compared 273 people with anxiety or depression who had taken antidepressants for at least a month with 273 healthy controls. Bruxism was found in 73.3 per cent of patients and 28.2 per cent of controls, and antidepressant use, a family history of grinding and poor sleep were all linked to it (Avan et al., 2025). That design cannot separate the effect of the condition from the effect of the medicine.

If your clenching started soon after a new prescription or a higher dose, tell the doctor who prescribed it. Please do not stop on your own, since the plan can be adjusted together.

Do caffeine and alcohol make it worse?

They can add to it. The NHS links grinding to drinking a lot of alcohol or caffeine and to smoking, and suggests cutting back (NHS, teeth grinding). Cleveland Clinic reports that people who smoke, drink alcohol and have a lot of caffeine are about twice as likely to grind their teeth, and gives more than six cups of coffee a day as an example of high intake (Cleveland Clinic, 2023).

Try it: the worry-and-jaw log

I give this log to people who suspect their worries end up in their jaw. It shows whether clenching follows anxious moments or happens whenever you concentrate.

1. Find your rest position: lips gently closed, teeth slightly apart, tongue resting softly on the roof of your mouth.
2. Check in anxious moments: whenever you notice a worry looping or restlessness building, check whether your teeth are touching and whether your cheek muscle feels hard.
3. Write two or three words: note what the worry was, such as tomorrow's meeting or a body symptom you were scanning.
4. Check calm moments too: do the same while you are calm but focused, for example reading or cooking, and note it.
5. Let go and move on: return to the rest position and breathe out slowly without chasing the thought.

After a few days, if your teeth meet mostly during particular worries and rarely during calm focus, that pattern is worth mentioning to your dentist, GP or physio, because anxiety may be part of what drives your clenching.

What helps when anxiety makes you clench?

In the moment

When you catch yourself clenching, let your teeth come apart and gently massage the sore jaw muscles. An ice pack or heat pack wrapped in a tea towel can ease pain, whichever feels better (NHS, TMD). The NHS also lists breathing exercises among the ways to relax if you grind your teeth (NHS, teeth grinding).

Long term

There are no official guidelines for managing awake bruxism yet. A systematic review of nine small studies with 165 participants found that most approaches tested fall under cognitive behavioural therapy, and results suggested benefits from biofeedback, habit reversal, reminder prompts and counselling with self-management. The authors describe the evidence as limited (Graham et al., 2026). Habit reversal means learning to notice clenching and swapping it for the rest position, which the log trains. If you also grind at night, the NHS says a dentist may suggest a mouth guard or splint to protect your teeth (NHS, teeth grinding). A physiotherapist can advise on jaw exercises and massage (NHS, TMD), and our TMJ exercises page shows gentle ones to start with.

The anxiety deserves its own care. For generalised anxiety disorder, the NHS describes talking therapies, usually CBT, and medicines, usually an SSRI, as treatment options (NHS, GAD). An app is not a substitute for treating the anxiety itself. If stress and anxiety are making jaw pain worse, a GP may suggest seeing a psychologist (NHS, TMD). For everyday pressure rather than anxiety, read can stress cause jaw pain?

How JawBuddy helps

JawBuddy is a digital companion for guided jaw exercises and self-management.

JawBuddy does not replace emergency care or an individual diagnosis from a qualified healthcare professional.

When should you see a doctor?

Get emergency help now

• Call 999 in the UK, 911 in the US or 112 in the EU if you have chest pain that feels tight or squeezing, or chest pain spreading to your arms, neck or jaw (NHS, heart attack). With anxiety it is tempting to blame a panic attack, but get it checked straight away.
• Call 999 or go to A&E if your life is at risk or you do not feel you can keep yourself safe (NHS, urgent mental health help). In the US, call or text 988, which is free and available around the clock (988 Lifeline). In the UK you can also call Samaritans on 116 123 or NHS 111 and choose the mental health option (NHS, urgent mental health help).

Get an appointment soon

• See a dentist if you grind your teeth and have damaged or sensitive teeth, or pain in your jaw, face or ear (NHS, teeth grinding).
• See a GP urgently or call 111 if you cannot eat or drink (NHS, TMD).
• See a GP if you think you might have generalised anxiety disorder, or if treatment is not helping (NHS, GAD).
• Talk to your prescriber if clenching began after starting a new medicine (Garrett & Hawley, 2018).

Your jaw doesn't have to carry the worry

A jaw that tightens with worry is your body responding to a real load, and you can work on it from both ends. Start the worry-and-jaw log today and look back in a few days at which thoughts bring your teeth together.

For the bigger picture on jaw problems and how they are treated, read our TMJ disorder guide.