Why Does My Child Grind Their Teeth at Night?

Child Grinding Teeth at Night | Children’s Dentist Stanmore

Why does your child grind their teeth at night? Learn about common causes of childhood teeth grinding, signs to look for, when to see a dentist and how it can be managed.

If you’ve noticed your child grinding or clenching their teeth while asleep, you may understandably be concerned.

Teeth grinding, medically known as bruxism, is relatively common in children. It can happen occasionally without causing problems, but persistent or severe grinding can sometimes contribute to tooth wear, sensitivity, jaw discomfort or headaches.

There isn’t always one single cause. Teeth grinding can be associated with factors such as stress, anxiety, sleep disturbances, discomfort, certain dental issues or the normal development of a child’s bite.

The important thing is not to assume that every child who grinds their teeth needs treatment. A paediatric dentist can assess your child’s teeth, gums, bite and symptoms and determine whether monitoring or further investigation is appropriate.

At Centre of Dental Excellence in Stanmore, our paediatric dental team provides personalised dental care for children and can assess concerns such as teeth grinding, tooth wear, sensitivity and jaw discomfort.

What Is Bruxism?

Bruxism is the medical term for grinding, clenching or gnashing the teeth.

It can happen:

During sleep
While awake
Occasionally
Frequently
During periods of stress or concentration

When it happens during sleep, parents may notice a grinding or scraping sound coming from their child’s bedroom.

Some children may grind their teeth without making an obvious noise, so the first sign may instead be changes noticed during a dental examination.

Is It Normal for Children to Grind Their Teeth?

Teeth grinding can occur in children and does not necessarily mean that there is something seriously wrong.

Some children may grind their teeth for a period of time and then stop without developing significant problems.

However, persistent or intense grinding should be discussed with your child’s dentist, particularly if there are signs of tooth wear, pain or other symptoms.

A dentist can distinguish between a habit that simply needs monitoring and one that may require further investigation.

What Causes Children to Grind Their Teeth?

There are several possible reasons why a child may grind their teeth.

1. Stress or Anxiety

Children can respond to emotional changes in different ways.

Changes at school, family changes, exams, new environments or other sources of anxiety may sometimes be associated with teeth clenching or grinding.

This doesn’t mean that stress is always the cause. However, if your child’s grinding seems to have started around a period of change, it is worth mentioning this to your dentist.

2. Sleep Problems

Teeth grinding can occur alongside certain sleep-related problems.

If your child also:

Snores regularly
Sleeps restlessly
Breathes through their mouth
Wakes frequently
Appears excessively tired during the day
Has unusual breathing patterns during sleep

tell your dentist or GP.

The dentist can advise whether further assessment may be appropriate.

3. Dental Development

Children’s mouths change significantly as they grow.

Baby teeth are gradually replaced by permanent teeth, and their bite changes as the jaws develop.

Changes in the way the teeth meet may sometimes contribute to grinding or clenching.

This is one reason regular children’s dental examinations are useful, the dentist can monitor how your child’s teeth and bite are developing.

4. Discomfort or Pain

Children may sometimes grind or clench their teeth when experiencing discomfort.

For example, dental problems such as tooth decay, sensitivity or other sources of oral discomfort may need to be ruled out.

If your child has suddenly started grinding their teeth and is also complaining of dental pain, arrange a dental examination.

5. Habitual Clenching

Some children develop a habit of clenching or grinding without an obvious underlying cause.

This can happen during sleep or while awake.

In many cases, the important question isn’t simply “Why is my child grinding?” but rather:

“Is the grinding causing damage or symptoms?”

Your dentist can assess this during an examination.

What Are the Signs My Child Is Grinding Their Teeth?

You may notice the sound of grinding at night, but there are other signs to look for.

These can include:

🦷 Flattened areas on the teeth
🦷 Increased tooth wear
🦷 Tooth sensitivity
🦷 Chipped teeth
🦷 Jaw discomfort
🦷 Facial muscle tenderness
🦷 Headaches, particularly around the morning
🦷 Complaints of sore teeth
🦑 Difficulty or discomfort when chewing

Not every child with bruxism will experience these symptoms.

Can Teeth Grinding Damage My Child’s Teeth?

Mild, occasional grinding may not cause significant damage.

However, frequent or forceful grinding can contribute to tooth wear.

Children have both primary and permanent teeth, and the effect of grinding can depend on the duration and intensity of the habit.

Your child’s dentist can monitor the teeth over time and look for changes such as:

Flattened biting surfaces
Chipping
Cracks
Increased sensitivity
Loss of tooth structure

Regular monitoring can be particularly important if grinding is frequent.

Can Teeth Grinding Cause Headaches?

It can be associated with jaw muscle tension and discomfort, which some children may describe as headaches or facial pain.

If your child regularly wakes with headaches or complains of jaw pain, tell your dentist.

However, headaches can have many possible causes, so they should not automatically be attributed to teeth grinding.

A dental assessment can help determine whether there are signs of bruxism or another dental problem.

Does My Child Need a Mouthguard?

Parents often ask whether their child should wear a mouthguard to stop nighttime grinding.

Not every child needs one.

The decision depends on factors such as:

Your child’s age
Whether they have baby or permanent teeth
The severity of grinding
The amount of tooth wear
Their bite
Any associated symptoms

A dentist should assess your child before a mouthguard or other appliance is recommended.

For growing children, dental appliances need to be carefully considered because their teeth and jaws are continuously developing.

Should I Wake My Child Up When They Grind Their Teeth?

Usually, there is no need to repeatedly wake your child simply because you hear them grinding.

Instead, make a note of how frequently it happens and whether there are any associated symptoms.

If the grinding is persistent, loud or accompanied by tooth wear, pain, headaches or sleep concerns, arrange a dental assessment.

What Can Parents Do at Home?

There are several simple steps parents can take.

Maintain Good Oral Hygiene

Make sure your child brushes their teeth thoroughly twice a day using an age-appropriate fluoride toothpaste.

Keep Dental Appointments Regular

Routine examinations allow your dentist to monitor tooth wear and dental development.

Create a Calm Bedtime Routine

A consistent, relaxing bedtime routine may be helpful, particularly if your child is experiencing stress.

Talk to Your Child

If your child seems worried or anxious, encourage them to talk about what is bothering them.

Avoid Self-Diagnosing

Grinding can have several possible causes. If you are concerned, ask your child’s dentist to assess them.

When Should I Take My Child to the Dentist?

Arrange an appointment if you notice:

Frequent or severe teeth grinding
Visible tooth wear
Chipped or damaged teeth
Tooth sensitivity
Jaw pain
Facial discomfort
Morning headaches
Difficulty chewing
Dental pain
Changes in your child’s bite

You should also mention grinding during your child’s next routine dental examination, even if they don’t have symptoms.

What Happens During a Paediatric Dental Assessment?

At Centre of Dental Excellence, your child’s dentist can assess:

✔️ Their baby and permanent teeth
✔️ Tooth wear
✔️ Their bite
✔️ Gum health
✔️ Signs of decay
✔️ Tooth sensitivity
✔️ Jaw and facial symptoms
✔️ Overall dental development

Where appropriate, dental X-rays or other investigations may be recommended.

The aim is to understand whether the grinding is causing any dental problems and whether further management is necessary.

Does Teeth Grinding Stop as Children Get Older?

In many children, teeth grinding can change or stop as they grow.

However, every child is different.

The best approach is to monitor the teeth and symptoms rather than assuming the grinding will automatically disappear.

Regular dental examinations allow changes to be identified and discussed with you.

My Child Grinds Their Teeth and Snores, Should I Be Concerned?

If your child grinds their teeth and also snores regularly or has noticeable sleep or breathing problems, mention this to your dentist and GP.

Grinding alone doesn’t diagnose a sleep disorder, but accompanying symptoms may warrant further assessment.

A multidisciplinary approach may sometimes be appropriate where dental and sleep-related concerns overlap.

Children’s Dentist in Stanmore

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Centre of Dental Excellence provides children’s dental care in Stanmore, serving families across North West London.

Our paediatric dental services include preventive care, children’s dental examinations, fillings, fissure sealants, treatment of damaged teeth and other age-appropriate dental treatments.

Why Choose Centre of Dental Excellence for Children’s Dentistry?

Children’s dentistry is about more than treating teeth when something goes wrong.

It is also about helping children develop positive dental habits and monitoring their teeth as they grow.

At Centre of Dental Excellence, we focus on:

🦷 Preventive dental care
🪥 Good oral hygiene habits
👧 Age-appropriate dental care
😁 Monitoring dental development
🦷 Early identification of dental problems
💬 Explaining treatment to children and parents
❤️ Creating a supportive dental environment

If your child is nervous about dental treatment, let our team know. We can discuss their concerns and consider appropriate approaches to help them feel comfortable.

Children’s Dentist in Stanmore, Middlesex

Centre of Dental Excellence is located at:

📍 46 Church Road, Stanmore, Middlesex, HA7 4AH

We welcome families from:

Stanmore · Harrow · Edgware · Bushey · Pinner · Borehamwood · Northwood · Watford · North West London

If your child grinds their teeth at night and you’re unsure whether it is something to worry about, a dental assessment can provide reassurance and help identify any signs that need monitoring.