As a parent, you may have noticed your child grinding their teeth at night—or maybe a dentist mentioned signs of wear during a checkup. This condition, called bruxism, is more common in children than many realize. But how common is it really, and should you be concerned?

What Is Teeth Grinding (Bruxism)?

Bruxism is the involuntary grinding, clenching, or gnashing of teeth, often happening during sleep. In children, it may occur without them even knowing, but parents might hear grinding sounds at night or see the effects on their child’s teeth and jaw.

How Common Is Teeth Grinding in Kids?

Studies suggest that 15%–30% of children experience bruxism at some point, particularly during early childhood. Some reports even note that the number may be as high as 1 in 3 children.

• Toddlers and preschoolers: Grinding is especially common as baby teeth are erupting.
• School-age children: Around 20% may still grind, often linked to stress, dental misalignment, or sleep habits.
• Teenagers: The prevalence reduces but can persist in some due to anxiety, orthodontic issues, or sleep disorders.

The good news: Many children outgrow teeth grinding as their jaws, teeth, and sleeping patterns mature.

Why Do Children Grind Their Teeth?

There isn’t one single cause, but some common reasons include:

• Teething pain or baby teeth eruption
• Stress or anxiety (exams, new environment, bedtime worries)
• Misaligned teeth or bite issues
• Hyperactivity or certain medical conditions
• Sleep disturbances such as snoring or sleep apnea

Signs Your Child May Be Grinding Their Teeth

• Grinding or squeaking sounds during sleep
• Worn or flattened tooth surfaces
• Tooth sensitivity or pain
• Jaw soreness in the morning
• Frequent headaches or earaches
• Disrupted sleep

If you notice any of these, it’s worth mentioning during your child’s next dental visit.

Should Parents Worry?

Occasional teeth grinding in children is usually harmless and temporary. However, long-term bruxism can:

• Wear down enamel
• Lead to chipped teeth
• Cause jaw pain or TMJ issues
• Disturb sleep quality

That’s why regular dental checkups are essential. A pediatric dentist can evaluate if your child needs treatment, reassurance, or simple monitoring.

How Can Teeth Grinding Be Managed?

• Encourage a calm bedtime routine (reading, soft music, warm bath)
• Address stress or worries through open conversations
• Ensure your child avoids caffeine (like chocolate or soda) before bed
• Follow regular dental visits to monitor tooth wear
• In some cases, a custom mouth guard may be recommended for older children to protect the teeth

Final Thoughts

Teeth grinding in children is quite common—affecting up to one-third of kids. In most cases, it’s a phase that passes without serious consequences. Still, being aware of the signs and working with a pediatric dentist ensures your child’s teeth and jaws remain healthy as they grow.