You’re checking on your child before heading to bed when you hear it—a scraping or grinding sound coming from their mouth.
They’re grinding their teeth in their sleep.
Teeth grinding, also called bruxism, is relatively common in children. Sometimes it is temporary and may not cause a problem. But when grinding happens frequently, it deserves a closer look.
That’s because nighttime teeth grinding may not simply be a “tooth habit.” In some children, it can occur alongside restless sleep, airway or breathing difficulties, jaw and muscle strain, or other sleep-related concerns.
Why Do Children Grind Their Teeth?
There isn’t one single cause of childhood bruxism. Several factors may contribute, including:
- Stress or anxiety
- Changes in the bite or developing teeth
- Jaw or muscle tension
- Certain medications or medical conditions
- Sleep disturbances
- Snoring or sleep-related breathing problems
This is why simply noticing the grinding doesn’t tell us exactly what is causing it.
The bigger question is:
What else is happening while your child sleeps?
Teeth Grinding and Your Child’s Airway
For some children, nighttime grinding occurs along with signs that breathing during sleep may not be as easy or efficient as it should be.
When the airway becomes restricted during sleep, the body may repeatedly respond in an effort to maintain breathing and move out of deeper stages of sleep. Teeth grinding can sometimes occur around these sleep disturbances or arousals.
This does not mean that every child who grinds their teeth has obstructive sleep apnea.
It does mean that frequent grinding—particularly when accompanied by other symptoms—can be one more reason to evaluate the quality of your child’s sleep and breathing.
Look Beyond the Grinding
Instead of focusing only on the sound of your child’s teeth, pay attention to the bigger picture.
Does your child also:
- Snore regularly?
- Sleep with their mouth open?
- Breathe primarily through their mouth?
- Toss and turn throughout the night?
- Sweat excessively while sleeping?
- Sleep with their head or neck extended backward?
- Wake frequently during the night?
- Wet the bed beyond the expected age?
- Wake with a dry mouth?
- Complain of headaches in the morning?
- Seem unusually tired despite getting enough hours of sleep?
- Have difficulty concentrating or sitting still during the day?
One symptom by itself may not indicate a significant problem. A pattern of symptoms is much more informative.
“But My Child Sleeps All Night”
One of the most important things for parents to understand is that being asleep does not necessarily mean getting healthy, restorative sleep.
A child may appear to sleep for eight, nine, or even ten hours while experiencing repeated brief disturbances that parents never notice.
If breathing is disrupted throughout the night, the brain and body may repeatedly shift out of deeper, restorative sleep.
The child may not remember waking up.
The parent may never see them wake up.
But the effects can sometimes show up during the day.
Sleep Problems Can Look Different in Children
Adults who sleep poorly often appear tired.
Children don’t always respond the same way.
Poor-quality sleep in children may sometimes appear as:
- Hyperactivity
- Difficulty concentrating
- Irritability
- Emotional outbursts
- Poor school performance
- Difficulty waking in the morning
- Daytime sleepiness
- Behavioral changes
That is one reason nighttime symptoms such as snoring, mouth breathing, restless sleep, and teeth grinding should be considered alongside what parents and teachers observe during the day.
Can Grinding Damage Your Child’s Teeth?
Frequent or forceful grinding can sometimes cause dental problems.
Depending on its severity and duration, bruxism may contribute to:
- Worn or flattened teeth
- Chipped teeth
- Tooth sensitivity
- Jaw soreness
- Facial muscle discomfort
- Morning headaches
However, protecting the teeth is only part of the picture.
If there is an underlying reason your child is grinding, addressing only the wear on the teeth may not address the factor contributing to the behavior.
Should My Child Wear a Night Guard?
Parents understandably may assume that the solution to grinding is a night guard.
But children are not simply small adults, and their mouths, jaws, teeth, and facial structures are still developing.
Before deciding how nighttime grinding should be managed, it is important to understand why it may be happening and whether other sleep, breathing, dental, or craniofacial concerns are present.
Treatment should be individualized based on the child’s age, development, symptoms, examination, and underlying findings.
When Should Parents Have It Evaluated?
Occasional grinding doesn’t necessarily mean something is wrong.
Consider discussing it with an appropriate healthcare or dental professional if the grinding is frequent, loud, causing visible tooth wear, associated with pain or headaches, or accompanied by symptoms such as snoring, mouth breathing, restless sleep, unusual sleeping positions, or daytime behavioral changes.
Those additional signs can provide important clues about what is happening while your child sleeps.
Listen to What Their Sleep Is Telling You
Grinding teeth may be the symptom that catches your attention.
But it may not be the whole story.
At TMJ & Sleep Therapy Centre of North Texas, we evaluate children from a broader perspective, looking at factors such as the jaw, craniofacial development, airway, breathing patterns, sleep-related symptoms, and other findings that may be contributing to their concerns.
Our goal is to understand the why behind the symptom and, when appropriate, work alongside your child’s pediatrician, dentist, ENT, sleep physician, or other healthcare providers.
If your child regularly grinds their teeth at night—especially if you have also noticed snoring, mouth breathing, restless sleep, or daytime changes—it may be worth taking a closer look.
Better sleep begins with understanding what’s happening while your child sleeps.
Schedule a Consultation
If you’re concerned about your child’s nighttime teeth grinding or sleep-related breathing, contact TMJ & Sleep Therapy Centre of North Texas to schedule an evaluation.
Restoring Quality of Life… One Patient at a Time.
