Bruxism in children: when is it normal and when should you see a dentist?

Hearing your child grind their teeth at night can be worrying, but it is important to start with the key point: childhood bruxism is very common and, in the vast majority of cases, is not serious. Even so, knowing how to distinguish what is normal from what should be monitored will help you act calmly and at the right time. In this guide for parents, we explain why it happens, which signs to look out for and when to see a dentist.

What is bruxism in children?

Bruxism in children is the involuntary habit of clenching or grinding the teeth, particularly during sleep, although it can also occur during the day. It is very common in childhood and affects many children at some stage of their development, particularly during the early years and while their teeth are changing.

The first point to understand, and one that reassures many families, is that childhood bruxism is usually temporary. In many cases, it resolves on its own as the child grows and their primary teeth are replaced by permanent teeth, without causing lasting problems. It is therefore not necessarily a sign of a serious condition, although it should be monitored when it is severe or persistent.

Is it normal for a child to grind their teeth?

Yes, to a certain extent it can be normal and expected. Many children go through periods of teeth grinding, particularly while teeth are erupting or during the transition from primary to permanent teeth, and in most cases it settles naturally as the mouth develops and the bite becomes established.

The key is to distinguish what is common from what should be monitored:

• What may be expected: occasional or intermittent grinding, without pain, significant tooth wear or disruption to the child’s sleep.
• What should be monitored: very frequent or severe bruxism that causes pain or visible tooth wear, is associated with sleep or breathing problems, or does not improve with age.

In simple terms, there is no need to be alarmed by occasional teeth grinding, but it should not be ignored if it becomes persistent or is accompanied by other symptoms.

Causes of bruxism in children

Childhood bruxism does not usually have a single cause, but rather results from a combination of factors. Understanding these can help explain why it occurs and how it should be approached.

Development and changing teeth

In younger children, tooth eruption and the progressive development of the bite may contribute to teeth grinding. This can be a relatively normal response while the mouth is developing and adapting, and it often reduces once the dentition becomes more stable.

Stress, emotions and changes in routine

Children can also express emotional tension through physical symptoms. Situations such as changing schools, the arrival of a sibling, family tension, exams or other changes in routine may lead to anxiety and, in turn, teeth clenching or grinding during sleep.

Bite or alignment problems

When the teeth do not meet correctly when the mouth closes, known as malocclusion, or when there is poor dental alignment, the jaw may adopt strained positions that can contribute to bruxism. In these cases, the underlying problem may be more structural and should be assessed by a paediatric dentist or orthodontist.

Sleep and breathing problems

The relationship between childhood sleep bruxism and sleep quality and breathing is increasingly recognised. Teeth grinding may be associated with poor-quality sleep, snoring or mouth breathing, for example due to enlarged adenoids or tonsils, or allergies. If bruxism occurs alongside these symptoms, it is worth considering a possible connection with the airways and discussing it with a healthcare professional.

Symptoms and warning signs of childhood bruxism

Children are not always able to explain what they are experiencing, so parental observation is particularly important. Common signs include:

• Grinding noises during the night, often noticed by parents or siblings.
• Complaints of jaw pain or headaches on waking.
• Visible tooth wear or flattened tooth edges.
• Tooth sensitivity to cold, heat or chewing.
• Restless sleep, snoring or daytime tiredness.

It is important to distinguish mild cases from those requiring assessment. Occasional grinding without any other symptoms is usually not a cause for concern, whereas significant tooth wear, persistent pain or disturbed sleep are reasons to seek professional advice.

When should you take your child to the dentist?

If you are unsure, a dental check-up is always worthwhile. It is simple, non-invasive and can provide reassurance. In particular, you should consider seeing a dentist or paediatric dentist if you notice:

• Obvious tooth wear or dental fractures.
• Recurring jaw, ear or head pain.
• Very frequent or severe grinding that does not improve over time.
• Bruxism that continues beyond the period when the teeth are changing or becomes worse.
• Signs of associated sleep or breathing problems, such as snoring, apnoea or mouth breathing.

The important point is that there is no need to wait until significant damage has occurred. Early assessment can help rule out treatable causes and, where necessary, determine the most appropriate approach.

Treatment for bruxism in children

One important point that often reassures families is that the treatment of bruxism in children is very different from treatment in adults and, above all, more conservative. In a growing mouth, the priority is to monitor and support development rather than intervene aggressively.

Observation and monitoring: the most common approach

In most cases, the appropriate approach is simply to monitor how the condition develops without active treatment, as bruxism often resolves naturally as the child grows. The paediatric dentist can monitor the condition of the teeth and the bite during routine check-ups.

Reducing stress and improving sleep habits

When emotional factors or sleep are involved, supporting the child’s routine and environment can be particularly helpful: relaxing bedtime routines, a calm environment, limiting screen time and providing emotional support during periods of change or worry. A more relaxed child may be less likely to clench or grind their teeth.

Occlusal splints and other measures: when are they considered?

Occlusal splints are used in children with considerable caution and only in selected cases, always following professional assessment. In a growing mouth where teeth are still erupting, a splint may interfere with dental eruption or development, so it is not routinely recommended and not every child with bruxism needs one. If there is an underlying bite or breathing problem, treatment should focus on addressing the underlying cause, such as orthodontic treatment or assessment by the appropriate specialist, rather than simply treating the symptom.

How to prevent or reduce bruxism in children at home

Although childhood bruxism cannot always be prevented completely, certain habits may help reduce it and improve the child’s sleep:

• Establish regular sleep routines and a relaxing bedtime ritual, such as reading a story, dimming the lights and creating a calm atmosphere.
• Reduce screen time towards the end of the day, particularly before bedtime.
• Manage stress by talking to your child, providing reassurance during periods of change and identifying any worries they may have.
• Avoid stimulants in the late afternoon and evening, including excessive sugar and caffeine found in some soft drinks.
• Encourage a calm environment and consistent daily routines.

These simple, low-risk measures are often the best way to support a child while bruxism gradually resolves naturally.

When to request an assessment at Face Clinic

In summary, the majority of cases of childhood bruxism are mild and temporary and require only observation and healthy habits. However, if you notice warning signs such as tooth wear, persistent pain, severe bruxism or sleep and breathing problems, or if you simply have concerns, a dental assessment can provide reassurance and rule out any underlying problem.

At Face Clinic, our team assesses each case individually, using the conservative approach required for a child’s age and development, and advises you on whether treatment is necessary or whether monitoring is sufficient. You can find out more about how we approach the condition on our bruxism treatment page and, if needed, request an assessment.