As a parent, hearing your child grind their teeth while sleeping can be a bit unsettling — the sound alone is enough to make you cringe. But don’t worry, you’re not alone. Many children experience what’s known as bruxism, and in most cases, it’s completely manageable and short-lived.
In this blog, we’ll explore what bruxism is, what causes it, how to recognise the signs, and what you can do to help your child sleep — and smile — comfortably again.
What You’ll Learn in This Post
- What bruxism (teeth grinding) is and why it happens
- Common signs and symptoms to look out for
- When it’s cause for concern
- Simple steps to help your child manage or outgrow the habit
- When to see a dentist and what treatment may involve
What Is Bruxism, and Why Do Kids Do It?
Bruxism is the medical term for teeth grinding or jaw clenching. In children, it typically occurs during deep sleep and can be triggered by a variety of things — some physical, some emotional. While it can sound alarming, it’s more common than many parents realise. In fact, up to 30% of kids will grind their teeth at some stage, usually between the toddler years and early teens.
Most kids outgrow it naturally, but in the meantime, it’s worth understanding what’s going on and whether any intervention is needed.
What Causes Teeth Grinding in Kids?
The exact cause of bruxism isn’t always clear, but common triggers include:
🦷 Teething or pain – Grinding may help soothe discomfort from new teeth or earaches
🦷 Misaligned teeth – When top and bottom teeth don’t quite fit together
🧠 Stress or anxiety – School pressure, a new sibling, or even arguments at home
⚡ Hyperactivity – Some energetic kids or those with conditions like ADHD may grind more
💊 Certain medical conditions or medications – Including cerebral palsy or side effects of some prescriptions
How to Tell If Your Child Has Bruxism
Because bruxism often happens during sleep, your child may not be aware they’re doing it. But here are a few signs that might point to nighttime grinding:
- A grinding or clicking sound while they sleep
- Complaints of a sore jaw, headaches, or facial pain in the morning
- Difficulty or pain when chewing
- Chipped or worn teeth (noticeable at a dental visit)
In many cases, it’s a parent or sibling who notices the noise first.
Is It Harmful?
Most of the time, bruxism doesn’t cause long-term harm and fades as children grow. However, ongoing grinding can lead to:
- Worn tooth enamel
- Increased tooth sensitivity
- Jaw discomfort or tightness
- In rare cases, issues with the temporomandibular joint (TMJ)
If your child is in pain or you’re noticing damage to their teeth, it’s a good idea to speak with your dentist.
How Is Bruxism Treated?
For most children, no treatment is needed beyond monitoring and a little support at home. But if the habit is causing pain or dental damage, your dentist may recommend a custom night guard — a soft mouthpiece worn during sleep to protect the teeth and ease pressure on the jaw.
These are similar to sports mouthguards and custom-moulded to your child’s bite. They’re safe, effective, and usually well-tolerated after a brief adjustment period.
Helping Your Child Cope
Whether bruxism is caused by stress, discomfort, or habit, there are simple ways you can support your child:
🛁 Establish a calming bedtime routine (warm bath, quiet reading, soft music)
💬 Talk through any worries or school-related stress
🦷 Keep up regular dental check-ups
🍫 Avoid caffeine (like chocolate or soft drinks) before bed
🧸 Monitor any changes in mood, behaviour, or sleep patterns
If emotional stress seems to be a key factor, don’t hesitate to talk to your family GP or a child psychologist for support.
Will It Ever Go Away?
Yes — in most cases, childhood bruxism fades by the time adult teeth come in. If the grinding is linked to stress, it often settles once the trigger is resolved. Regular dental visits will help keep an eye on any changes and address concerns early.
Final Thoughts: Don’t Stress the Grinding
While the sound of your child grinding their teeth might keep you up at night, rest assured it’s usually a passing phase. The most important thing is to stay observant, maintain regular dental visits, and support your child with healthy habits — both for their smile and their sleep.
If you’re ever unsure whether it’s something to worry about, a quick chat with your dentist can put your mind at ease.