What Is Bruxism and How to Stop Grinding Your Teeth at Night?

You may have heard it from your partner: "Did you know you grind your teeth at night?" Some people find out exactly this way. Others start noticing they wake up with a sore jaw, a stiff neck, or an unpleasant pressure around their temples. And many are surprised to learn that these symptoms may be linked to a fairly common problem – bruxism.

In my practice, I encounter this issue quite often. Some clients come in with recurring headaches, others with chronic tension in the face or neck area. Sometimes they learned about their teeth grinding from their dentist, who noticed significantly worn tooth enamel. Gradually, through conversation, it becomes clear that their body is responding to long-term stress or inner tension in exactly this way.

Bruxism is not just a dental problem. Very often, it reflects a fascinating connection between the mind and the body. That is why it is useful to approach it holistically – not merely as a mechanical tooth problem, but as a signal the body is sending us.

Defining the problem: what is bruxism and why does it occur?

Bruxism is the medical term for unconscious grinding or forceful clenching of the teeth. It most commonly occurs during sleep, which is why people are usually completely unaware of it. In some cases, however, it can also appear during the day – for example, during moments of stress, intense concentration, or emotional tension.

From a medical perspective, a distinction is often made between nighttime and daytime bruxism. Nighttime bruxism is classified as a sleep disorder and occurs during individual sleep cycles. Daytime bruxism manifests more as jaw clenching or tension in the jaw area during waking hours.

In practice, I often see that it involves a combination of several factors. Sometimes the position of the teeth or jaw plays a role, other times it is neurological processes related to sleep. Very frequently, however, psychological factors also come into play – particularly stress, inner tension, and long-term overload.

Many clients describe a similar experience. During the day they function fairly normally, managing work and family responsibilities, yet in the morning they wake up feeling as though their jaw is completely locked. It is as if the body uses sleep to "discharge" the tension that built up throughout the day.

This is a fairly natural response of the organism. During sleep, the brain processes a large number of stimuli and emotions. When there is too much tension, it can manifest precisely through muscular activity – and the jaw muscles are among the strongest muscles in the body.

Most common causes: why do you grind your teeth at night?

One of the most common causes of bruxism is stress. When a person is exposed to prolonged psychological pressure, the body responds with increased muscle tension, which can accumulate in the shoulders, neck, back, and also in the jaw area.

In practice, I notice that bruxism tends to appear during periods of heightened demands or change:

• work overload and high performance pressure,
• relationship conflicts or difficult life decisions,
• periods of uncertainty and long-term stress,
• perfectionism and high self-expectations – people who are unable to fully "switch off" even at night.

Bruxism can also be linked to sleep disorders. Poor or disrupted sleep, frequent nighttime waking, or sleep apnea can increase the likelihood of its occurrence.

Some cases have a physical cause – a misaligned bite, orthodontic issues, or temporomandibular joint dysfunction. This is why collaboration with a dentist is often important in diagnosing bruxism.

Certain lifestyle habits can also play a role – excessive consumption of caffeine, alcohol, or nicotine, all of which stimulate the nervous system and may increase muscle activity during sleep.

Symptoms of bruxism: how to tell if you have it

Many people remain unaware of their bruxism for a long time, because it happens during sleep. It is often a partner who first notices the characteristic sound of teeth grinding. The most common symptoms include:

• morning jaw pain or stiffness – a feeling of tiredness or tension in the jaw, sometimes pain when chewing or opening the mouth,
• headaches, particularly around the temples – so-called tension headaches caused by prolonged muscle tension,
• increased tooth sensitivity – constant friction gradually wears down the tooth enamel,
• tension in the neck and shoulders – the jaw muscles are closely connected to the neck muscles, and tension spreads into these areas.

What are the consequences of untreated bruxism?

If bruxism persists over a long period without being addressed, it can lead to several health problems:

• tooth damage – worn enamel, increased sensitivity, cracking or breaking of teeth,
• temporomandibular joint problems – clicking in the jaw, pain when opening the mouth, or limited jaw movement,
• chronic headaches and general stiffness in the face, neck, and shoulder area,
• reduced sleep quality – the body is unable to fully relax during the night, leading to morning fatigue and insufficient recovery.

Treatment and help: how to get rid of bruxism for good?

The good news is that bruxism can be treated. The best results typically come from combining several approaches – dental, physiotherapeutic, and psychological.

Nighttime dental splint

One of the most common solutions is a custom-fitted dental splint made by a dentist. It is a plastic device worn during sleep that helps protect the teeth from damage and reduces pressure on the jaw.

It is important to understand, however, that a splint primarily addresses the consequences of bruxism, not its root cause.

Physiotherapy and jaw release exercises

In many cases, physiotherapy can also be highly beneficial. Through gentle manual techniques, massage, and targeted exercises, it is possible to gradually release tension in the jaw muscles. Exercises focused on correct head and cervical spine posture are also very effective.

Stress reduction and mental hygiene

From a psychological perspective, working with stress is one of the most important steps. In practice, I often recommend:

• conscious slowing down during the day and short breaks at work,
• an evening routine – quiet reading, gentle stretching, a warm shower, or limiting screen time before bed,
• relaxation techniques – breathing exercises, meditation, or progressive muscle relaxation,
• regular physical activity as a natural outlet for accumulated tension.

What helps with bruxism in the long term?

In the long term, the most effective approach is learning to listen more carefully to the body's signals. Bruxism is often a quiet warning that the tension in our lives has exceeded a healthy level.

When clients gradually learn to rest more, regulate stress better, and pay attention to their body, teeth grinding often diminishes significantly. Regular quality sleep, sufficient physical activity, stress management, and, where needed, collaboration with specialists – a dentist, physiotherapist, or psychologist – all make a meaningful difference.

Bruxism can thus paradoxically help us recognise that our body needs more care. Rather than ignoring its signals, we can choose to see them as an invitation toward greater balance between performance, rest, and mental wellbeing.