Teeth Grinding in Kids: Why the Start of the School Year Triggers Bruxism
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Medically reviewed by
Dr. Michelle Haghpanah, DDS, MPH
Board-Certified Pediatric Dentist
Dr. Michelle Haghpanah is a board-certified pediatric dentist dedicated to providing preventive, evidence-based dental care for infants, children, and adolescents. She earned her Doctor of Dental Surgery from New York University, a Master of Public Health from Yale University, and completed her pediatric dental residency at Mount Sinai Medical Center, where she served as Chief Resident. A former Associate Professor at the University of the Pacific with hospital privileges at Lucile Packard Children’s Hospital Stanford and Kaiser Santa Clara, Dr. Michelle reviews clinical content to ensure it reflects current pediatric dental guidelines, evidence-based practices, and clear, family-friendly information that helps parents make informed decisions about their child’s oral health.
Back-to-school season brings new teachers, new schedules, and a lot of new pressure for young minds to process. If your child has started grinding or clenching their teeth at night, especially in the last few weeks, you are not imagining a connection between the two. Nighttime teeth grinding, known as bruxism, tends to spike whenever kids face a major shift in routine, and September is one of the biggest shifts of the year.
At Little Bytes Pediatric Dentistry, we see this pattern every fall. Parents come in worried about a grinding sound they heard through the baby monitor or a strange clicking noise at the dinner table, and it almost always traces back to a child adjusting to something new and unfamiliar. We create a warm, caring, and inviting environment for every family who walks through our doors, and that starts with helping you understand what is actually happening inside your child’s mouth and mind.
What Causes Bruxism in Children
Bruxism is the clinical term for grinding or clenching the teeth, and it is surprisingly common in young kids. Most children who grind their teeth do so during sleep. Parents may not even realize it is happening until a partner, sibling, or grandparent hears the sound at night. According to the American Academy of Pediatrics, stress can contribute to teeth grinding in children, particularly when they are worried about school, friendships, or changes at home.
Going back to school can be an adjustment after the slower pace of summer. Kids may be waking up earlier, getting used to a new teacher or classmates, keeping up with homework, or dealing with worries about fitting in. Even when they seem to be handling it well during the day, some of that stress can show up at night.
Why September Is Peak Bruxism Season
Every fall, we hear from more parents who notice grinding, clicking, or jaw soreness in their kids. The transition back to school can bring homework, tests, earlier mornings, and less downtime after a relaxed summer. For some children, that added stress may contribute to nighttime grinding or clenching, even when they seem perfectly happy during the day. Common back-to-school pressures that may play a role in bruxism include:
- A new teacher or classroom to adjust to
- Separation from a close friend due to schedule changes
- Worry about making new friends
- Exhaustion from an earlier bedtime and wake-up routine
Once you know what to look for, it becomes much easier to spot the signs at home before they turn into a bigger problem.
Signs Your Child Might Be Grinding Their Teeth
Bruxism most often occurs during sleep, so many parents do not catch it in the moment and instead notice the aftereffects. Watch for a grinding or grating sound at night, complaints of jaw soreness or a headache in the morning, and teeth that look flattened, chipped, or unusually worn for your child’s age.
If you notice any of these signs, it does not automatically mean something is seriously wrong, as most bruxism in young children resolves on its own as they grow. Still, we always recommend having it evaluated to rule out anything that may require early intervention.
How We Help Kids Manage Bruxism
When a family comes to us with concerns about teeth grinding, we start by looking for signs of wear and discussing when the grinding occurs and what may be contributing to it. For some kids, changes to their bedtime routine or finding ways to ease stress around school can help. If grinding is beginning to affect the teeth, we can also discuss whether a habit-breaking appliance or another protective approach makes sense.
We also keep an eye on your child’s bite and how their teeth are developing as they grow. If we notice a separate concern, such as early tooth loss that could affect the space available for an adult tooth, we may recommend a space maintainer as part of their overall dental care. What we recommend ultimately depends on what we see during your child’s exam and what is most appropriate for their stage of development.
Let Little Bytes Pediatric Dentistry Put Your Mind at Ease
You do not need to wait for a scheduled cleaning to bring up a grinding concern. If you have noticed new sounds at night, jaw complaints in the morning, or visible wear on your child’s teeth since school started, it is worth having Dr. Michelle or Dr. Grover take a look. Both are board-certified pediatric dentists who have trained extensively in caring for kids’ unique dental needs.
Little Bytes Pediatric Dentistry has built its Palo Alto practice around exactly these kinds of conversations, the ones where a small, easy-to-miss symptom turns out to have a simple, reassuring explanation. If the back-to-school season has your child grinding their teeth at night, schedule a visit, and we will find a time that works for your family.