Why Does My Child Grind Their Teeth at Night? Learn About Pediatric Bruxism
- CSMA Team
- Jul 7
- 5 min read
Updated: Jul 9
If you've ever checked on your child while they were sleeping and heard an unsettling grinding or clenching noise coming from their bedroom, you're certainly not alone. Many parents are surprised, and understandably concerned, when they first notice their child grinding their teeth during sleep.
The good news is that pediatric bruxism, the medical term for teeth grinding and jaw clenching, is relatively common among children. In many cases, it improves on its own as children grow. However, persistent teeth grinding can sometimes signal an underlying sleep issue, stress, airway problem, or dental concern that deserves attention.
Understanding why pediatric bruxism happens, and when it's time to seek help from a sleep specialist, can protect your child's developing teeth while improving their overall sleep quality and health.
What Is Pediatric Bruxism?
Pediatric bruxism refers to the involuntary grinding, clenching, or gnashing of teeth, most often occurring during sleep. Some children also clench their teeth during the day, but nighttime grinding is far more common.
Research estimates that anywhere from 15% to 40% of children experience teeth grinding during sleep at some point. It is especially common in toddlers, preschoolers, and elementary-aged children.
Parents often discover the problem because they hear:
Loud grinding noises
Rhythmic jaw movements
Clicking sounds
Clenching during sleep
Many children don't even realize they're doing it.
Why Does My Child Grind Their Teeth During Sleep?
There isn't always one clear answer. Instead, several factors may contribute to teeth grinding during sleep.
1) Normal Growth and Development
For younger children, occasional grinding may simply be part of normal development. As baby teeth emerge and permanent teeth begin replacing them, the jaw naturally adjusts.
Many children eventually outgrow this habit without treatment.
2) Stress and Anxiety
Children experience stress just like adults do. Changes such as the following can all contribute to nighttime jaw clenching:
Starting school
Family changes
Academic pressure
Social anxiety
Exciting upcoming events
Even positive excitement can sometimes increase muscle tension during sleep.
3) Sleep Disorders
One of the lesser-known causes of pediatric bruxism is poor-quality sleep. Children who experience the following symptoms may be more likely to grind their teeth:
Frequent nighttime awakenings
Restless sleep
Breathing interruptions
In these cases, the grinding isn't necessarily the primary problem—it's often a symptom of an underlying sleep disorder. This is one reason it's important to consult a sleep doctor if your child consistently grinds their teeth and also snores, breathes through their mouth, or seems unusually tired during the day.
4) Airway Issues
Enlarged tonsils, enlarged adenoids, allergies, or chronic nasal congestion can make breathing more difficult during sleep.
Some researchers believe grinding may be the body's attempt to reposition the jaw and open the airway. If your child frequently breathes through their mouth or snores, an airway evaluation may be recommended.
5) Misaligned Teeth
Dental alignment can also play a role. An uneven bite or improperly aligned teeth may contribute to jaw muscle activity during sleep. Your child's dentist can determine whether orthodontic concerns may be involved.
6) Certain Medical Conditions
Although less common, pediatric bruxism may also be associated with:
ADHD
Certain neurological conditions
Some medications
Acid reflux
A comprehensive evaluation can help determine whether another medical condition may be contributing.
What Symptoms of Pediatric Bruxism (Teeth Grinding) Should Parents Watch For?
Many children never complain about grinding because they sleep through it. Instead, parents may notice symptoms such as:
Grinding noises at night
Complaints of jaw pain
Morning headaches
Ear pain without infection
Tooth sensitivity
Worn or chipped teeth
Facial soreness
Interrupted sleep
Daytime irritability
Difficulty concentrating
Some children may even wake frequently throughout the night without an obvious reason.
Can Teeth Grinding Damage My Child's Teeth?
Occasional grinding usually doesn't cause significant damage. However, persistent or severe pediatric bruxism can eventually lead to:
Flattened teeth
Cracked enamel
Tooth fractures
Increased sensitivity
Jaw pain
Temporomandibular joint (TMJ) discomfort
Difficulty chewing
Because children's teeth are still developing, early intervention can help prevent long-term complications.
Is Teeth Grinding a Sign of Sleep Apnea?
Not always—but it can be. Many parents don't realize that teeth grinding during sleep is sometimes associated with pediatric obstructive sleep apnea.
Other signs include:
Loud snoring
Gasping during sleep
Mouth breathing
Restless sleeping
Bedwetting
Hyperactivity
Trouble focusing at school
When these symptoms occur together, it's important to have your child evaluated by a qualified sleep doctor. Treating the underlying sleep disorder often reduces or eliminates teeth grinding.
How Is Pediatric Bruxism Diagnosed?
Diagnosis usually begins with a discussion of your child's symptoms and medical history. Your provider may ask about:
Sleep habits
Snoring
Stress levels
Morning headaches
Dental concerns
Medications
Family history
Depending on your child's symptoms, additional evaluations may include:
Dental examination
Airway assessment
Sleep evaluation
Overnight sleep study when appropriate
These assessments help identify whether grinding is an isolated habit or part of a larger sleep-related issue.
How Is Pediatric Bruxism Treated?
Treatment depends on what's causing your child's grinding. While there are many treatment options available, here are a few of the more common ones:
1) Monitoring
For many young children with mild symptoms, monitoring may be all that's needed. Your provider may simply recommend periodic dental exams to ensure the teeth remain healthy.
2) Managing Stress
Helping children establish calming bedtime routines can reduce nighttime muscle tension. Helpful strategies include:
Reading before bed
Gentle stretching
Relaxation exercises
Maintaining consistent sleep schedules
3) Treating Sleep Disorders
If sleep apnea or another sleep disorder is identified, treating the underlying condition often improves grinding. This may involve:
Airway evaluation
Allergy treatment
Tonsil or adenoid assessment
Sleep medicine recommendations
4) Dental Protection
In some older children, dentists may recommend custom night guards if significant tooth damage is occurring. These are generally used selectively because children's mouths are still growing.
Frequently Asked Questions About Pediatric Bruxism (Teeth Grinding)
Is pediatric bruxism common?
Yes. Teeth grinding (or clenching jaw during sleep) is fairly common in children, particularly between the toddler and elementary school years.
Will my child outgrow teeth grinding?
Many children do outgrow pediatric bruxism. However, persistent grinding should be evaluated by a sleep doctor, especially if it causes pain or tooth damage.
Can stress cause teeth grinding during sleep?
Yes. Emotional stress, anxiety, excitement, and changes in routine can all contribute to nighttime grinding.
Should I be worried if my child snores and grinds their teeth?
Yes. Snoring combined with teeth grinding during sleep may indicate an underlying sleep disorder, such as pediatric sleep apnea, and should be evaluated by a sleep doctor.
Can a sleep study help diagnose the cause?
In some cases. If your provider suspects a sleep disorder is contributing to pediatric bruxism, an overnight sleep study may be recommended.
When should I schedule an appointment?
If your child grinds their teeth regularly, complains of jaw pain, has worn teeth, snores, or seems tired during the day, schedule an evaluation with a sleep doctor to determine the underlying cause and appropriate treatment.
When Should You See a Sleep Doctor?
Parents should schedule an evaluation if their child:
Grinds their teeth several nights each week
Complains of jaw pain
Has damaged or worn teeth
Snores regularly
Breathes through their mouth during sleep
Seems excessively tired despite getting enough sleep
Experiences frequent morning headaches
Has restless or poor-quality sleep
Early evaluation can identify problems before they affect your child's dental health, growth, learning, or overall well-being.
Helping Your Child Sleep Better
Healthy sleep is essential for every aspect of kids health, from brain development and emotional regulation to learning and immune function.
While occasional grinding is often harmless, persistent pediatric bruxism should never be ignored—especially when it's accompanied by snoring, restless sleep, or daytime fatigue.
At Comprehensive Sleep & Medical Associates (CSMA), our experienced providers evaluate the whole child, looking beyond the teeth to identify sleep disorders, breathing issues, and other underlying conditions that may be contributing to nighttime grinding.
If you're concerned about your child's sleep or have questions about pediatric bruxism, our team is here to help. Schedule an appointment with CSMA and let us help your child sleep better and live healthier.
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