Does Your Child Grind Their Teeth at Night? Here’s What to Know

If you’ve ever heard a strange grinding noise coming from your child’s room at night, you’re not alone. Teeth grinding — also known as bruxism — is surprisingly common in children, especially during sleep. While many children eventually outgrow it, it’s important to understand what causes it, what signs to look for, and when it might need professional attention.

Here’s what every parent should know about night-time teeth grinding and how to help protect your child’s developing smile.

What Is Bruxism?

Bruxism refers to the involuntary grinding, clenching, or gnashing of teeth. It can happen during the day or night, but sleep bruxism is more difficult to detect because it occurs when your child is unconscious and unaware of their actions.

Night-time grinding can range from occasional and mild to frequent and forceful. While not always harmful, ongoing bruxism can lead to wear on teeth, jaw discomfort, and other complications if left unchecked.

Why Do Children Grind Their Teeth?

There are several possible reasons a child may grind their teeth, including:

Hyperactivity or certain medications: Some studies suggest a connection between bruxism and children with ADHD or those taking stimulant medications.

Teething or new tooth eruption: In younger children, bruxism may occur as new teeth come in and the mouth adjusts to changes.

Misaligned teeth or bite issues: Irregular alignment of the teeth or jaw can cause the teeth to grind as they try to find a natural resting position.

Stress or anxiety: Just like adults, children can clench their jaws or grind their teeth in response to emotional stress or tension.

Sleep disturbances: Conditions like sleep apnoea or frequent waking may be linked to bruxism.

Most of the time, bruxism in children is not a sign of a serious medical problem. However, it’s still worth monitoring and discussing with your dentist.

Common Signs Your Child May Be Grinding Their Teeth

Because bruxism often happens during sleep, many children don’t even know they’re doing it. As a parent, you might notice:

• Grinding sounds at night
• Complaints of a sore jaw or face, especially in the morning
• Headaches, particularly around the temples
• Tooth sensitivity or discomfort when chewing
• Worn-down, flattened, or chipped teeth
• Difficulty sleeping or frequent waking

In some cases, a dentist may be the first to notice the signs of bruxism during a routine check-up.

When Should You Be Concerned?

Occasional grinding is quite common in children and often doesn’t require treatment. Many kids outgrow the habit by adolescence. However, you should speak to us if:

• The grinding is loud or occurs frequently
• Your child complains of jaw pain or has trouble eating
• There is visible wear or damage to the teeth
• The habit continues into the teenage years

Early intervention can help prevent long-term damage and relieve any discomfort your child may be experiencing.

How Is Teeth Grinding Treated in Children?

Treatment depends on the cause, severity, and age of the child. In many cases, no immediate treatment is needed — just monitoring over time.

If the bruxism is causing damage or discomfort, we may recommend:

• Night guards: A custom-fitted appliance worn while sleeping can protect the teeth from further wear.
• Bite adjustment: In cases where the bite is misaligned, orthodontic treatment may help correct the problem.
• Stress management: If anxiety is contributing, relaxation techniques, improved bedtime routines, or talking to a child psychologist may help.
• Sleep assessment: If sleep disorders are suspected, further investigation or referral may be needed.

We always take a conservative, child-friendly approach — ensuring your child feels safe and supported throughout any treatment process.

What You Can Do at Home

As a parent, there are a few things you can do to help reduce teeth grinding and support your child’s oral health:

• Establish a calming bedtime routine with quiet time before bed
• Avoid screen time or stimulating activities close to bedtime
• Encourage open conversations about any stress your child may be feeling
• Ensure your child is brushing and flossing daily to maintain strong teeth
• Keep up with regular dental check-ups so we can monitor any changes

Most Children Outgrow It — But Keep an Eye Out

The good news is that most children stop grinding their teeth as they grow older and their bite develops. Still, early monitoring helps prevent unnecessary complications and ensures your child’s smile stays healthy and strong.

With the right support — and a little attention to your child’s habits — you can rest easy knowing you’re protecting their teeth through every stage of growth.

If you’re concerned that your child might be grinding their teeth at night, we invite you to come visit us. Our gentle, caring team is here to assess your child’s smile and offer personalised guidance to support their long-term oral health.