If you have ever crept into your child’s room at night and heard a grating, crunching sound coming from their mouth, you are not alone. Teeth grinding in children, known medically as bruxism, is surprisingly common, and for most families it turns out to be far less alarming than it sounds. This is general information to help you understand what may be going on, but it is not a substitute for advice from your dentist or doctor, who can look at your own child’s situation.
What teeth grinding is and how common it is
Bruxism simply means clenching or grinding the teeth, often during sleep but sometimes while awake. Many children do it at some point, especially in the toddler and early school years, and a good number will grow out of it as their teeth and jaws develop. Some children grind so quietly that no one notices, while others make a sound loud enough to be heard down the hallway of an HDB flat.
Because it usually happens during sleep, most children have no idea they are doing it and feel completely fine in the morning. Often it is parents, siblings, or a sharp-eared grandparent who first picks up on it.
Why children grind their teeth
There is no single cause, and often it is a mix of things. Some of the more common reasons include:
- New teeth coming through or the natural process of baby teeth and adult teeth shifting, which can change how the top and bottom teeth meet
- Mild discomfort, such as teething, an earache, or a blocked nose
- Feeling wound up, anxious, or overtired, since stress can show up in the body even in young children
- Disrupted sleep or breathing issues during sleep, such as heavy snoring
Because emotions and sleep quality can play a part, it is worth thinking about whether anything has changed recently, such as starting a new preschool, exam pressure in the older years, a new sibling, or a shift in routine. A calmer bedtime often helps, and our guide to helping your child wind down before bed has gentle ideas you can try.
Should you worry?
For most children, occasional teeth grinding is harmless and passes on its own without causing any lasting damage, particularly while they still have their baby teeth. So in many cases the honest answer is that there is no need to panic.
That said, it is still worth keeping an eye on, because sometimes grinding can point to something worth addressing. Reasons to have it checked include:
- Complaints of jaw pain, face pain, headaches, or earaches
- Worn, chipped, cracked, or sensitive teeth
- Grinding that is frequent, loud, and clearly disturbing your child’s sleep
- Loud snoring, pauses in breathing, or very restless sleep alongside the grinding
- Grinding that starts or worsens during a stressful period
If any of these ring true, it is sensible to raise it with your dentist or doctor rather than waiting and hoping it settles.
Simple things to try at home
While you cannot force a sleeping child to stop grinding, you can create the conditions that tend to help. A settled, well-rested child under less tension often grinds less.
- Build a calm, consistent bedtime routine with a wind-down period away from screens
- Watch for overtiredness and make sure your child is getting enough sleep for their age
- Offer plenty of water through the day, which matters in our warm, humid climate
- Gently talk with your child about anything that might be bothering them, in an age-appropriate way
- Keep up good daily brushing so any tooth wear can be spotted early
Strong daily oral care habits are your best everyday defence, and our guide to children’s dental care in Singapore walks you through the basics for different ages.
Please do not try to fit a shop-bought mouthguard or any home remedy without professional guidance, and never give medication for jaw pain unless a doctor or pharmacist has advised it. A child’s mouth is still growing, and the wrong appliance can do more harm than good.
When to see your dentist
Regular dental visits are the simplest way to keep on top of teeth grinding, because your dentist can check for wear on the teeth, look at how the jaws are developing, and reassure you or step in if needed. If your child has not yet had a check-up, our guide to your child’s first dentist visit explains what to expect and how to make it a positive experience.
Bring it up at the next appointment if you have noticed grinding, and go sooner if your child has ongoing jaw or tooth pain, obviously damaged teeth, or if the grinding comes with worrying sleep or breathing signs. Your dentist can advise whether anything is needed, which might range from simple monitoring to, for some older children, a custom night guard. As adult teeth settle in, some children may later be assessed for how their bite is developing, and our guide to braces and orthodontics for children covers that stage.
The reassuring bottom line
For the vast majority of families, teeth grinding in children is a passing phase that causes no harm and fades with time. The most useful things you can do are keep bedtimes calm, support good sleep, maintain daily brushing, and keep up regular dental check-ups so a professional has eyes on it. Trust your instincts. If something feels off, or your child is in pain or sleeping badly, book a visit and let your dentist or doctor guide you. Every child is different, and a little watchful patience usually goes a long way.