Why Is My Child Grinding Their Teeth at Night?

If your child wakes up with jaw pain or you’ve heard them grinding their teeth in their sleep, you’re not alone. Bruxism, or nighttime teeth grinding, is fairly common in kids, especially between the ages of 4 and 10. At Miami Smile Dental, we often hear from parents concerned about this habit and what it could mean for their child’s oral health.

What Is Childhood Bruxism?

Bruxism is the involuntary grinding or clenching of teeth, usually during sleep. It often starts around preschool age and usually fades by the time permanent teeth come in. Studies suggest up to 30% of children will grind their teeth at some point.

Common signs to watch for:

• Sore jaw or face in the morning
• Grinding noises at night
• Headaches (especially in the morning)
• Earaches or jaw tightness
• Tooth sensitivity
• Chewed tissue inside the cheeks

What Causes It?

The exact cause isn’t fully understood, but it could be linked to:

• Stress or anxiety
• Pain from teething or ear infections
• Misaligned teeth or bite issues

Often, it’s a mix of physical and emotional factors. The good news? In most cases, childhood bruxism is temporary and doesn’t cause lasting harm.

When to Talk to a Dentist

Mild cases usually don’t need treatment. But if your child is waking up with regular pain, or you notice signs like worn-down teeth, it’s worth bringing it up during their next visit. Bruxism can sometimes lead to enamel damage or TMJ issues, especially if it continues over time.

At Miami Smile Dental, we can check for any wear or bite misalignment and offer gentle solutions tailored to your child’s age. That might include a soft nightguard or simple stress-reducing bedtime routines.

Tips to Help Reduce Grinding

If stress seems to be a trigger, try these at-home tips:

• Keep a calm, screen-free bedtime routine
• Avoid snacks or physical play right before bed
• Talk to your child about any worries they may have
• Use soft music or bedtime stories to wind down

Every child is different, but the more relaxed they feel before sleep, the less likely they are to clench or grind.

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Related reading:

• Kid-Friendly Dentistry in Miami
• What Should I Do if I Chip My Tooth?
• Dental Anxiety in Kids

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Gentle, Supportive Care for Growing Smiles

If you have questions about your child’s dental habits, we’re happy to help. Schedule a visit with our team at Miami Smile Dental or call us. We’ll check in on your child’s smile and guide you through the next best steps.