I remember the first time I heard that strange grinding sound coming from my toddler’s room; it caught me off guard. Toddlers grinding teeth in sleep is something many parents notice, and it’s more common than you might think.

It’s common for parents to wonder if it’s normal or something that needs fixing. That’s why I’ve put together this guide to walk you through what’s going on.

You’ll learn why toddlers grind their teeth, what signs to look out for, and what you can do at home to help. I’ll also share when it might be time to check in with a dentist.

Normal Tooth Grinding in Toddlers During Sleep

Teeth grinding during sleep, also called sleep bruxism, is common in toddlers. It often starts around age 2 and may continue until age 6.

Most cases are mild and don’t cause any long-term harm. Grinding tends to happen during deep sleep and may go unnoticed unless it’s loud.

Experts estimate that about 20% to 30% of toddlers grind their teeth at some point.

Pediatric dentists consider it a normal stage of development for many children.

As long as it doesn’t lead to pain, jaw issues, or damage to the teeth, it usually doesn’t need treatment. Most kids outgrow it naturally as they grow and their bite changes.

Common Causes of Teeth Grinding in Toddlers

Many toddlers grind their teeth for reasons that are usually temporary or harmless. The causes can vary from physical discomfort to emotional or sleep-related issues.

Below are some of the most common reasons behind nighttime teeth grinding in toddlers:

1. Teething Pain and Discomfort

As new teeth break through the gums, toddlers may respond by grinding.
This movement can help relieve pressure or pain, especially during molar eruption.

Often happens during major teething phases (e.g., 2-year molars), usually decreases once the teeth have come in

2. Misaligned Jaw or Bite

When a child’s upper and lower teeth don’t line up properly, the jaw may shift during sleep.
This movement can lead to grinding as the mouth tries to find a natural resting position.

Common in toddlers as their bite develops, often resolves as teeth grow and align with age

3. Sleep Disorders (Apnea, Nightmares, Terrors)

Disrupted sleep can trigger teeth grinding.
Conditions like sleep apnea, frequent nightmares, or night terrors may cause a child to clench or grind during deep sleep.

Bruxism is more likely during periods of restless or fragmented sleep. Identifying sleep issues can help reduce grinding

4. Anxiety or Emotional Stress

Even young children can show stress in physical ways.
Grinding may be a reaction to tension, overstimulation, or changes in routine.

Stressful events like starting daycare or moving homes may contribute, and grinding may ease once the stressor passes

5. Nutritional Deficiencies (e.g., Calcium, Magnesium)

Low levels of certain minerals may be linked to nighttime teeth grinding.
Calcium and magnesium help muscles relax; deficiencies can lead to jaw tension.

A balanced diet may help reduce grinding. Always consult a pediatrician before supplementing

These causes are often mild and short-term. Understanding the reason behind the grinding can help you decide whether to wait it out or seek help.

When Toddler Teeth Grinding Needs Attention

While most teeth grinding in toddlers is harmless, some signs may point to a more serious problem. If you notice any of the issues below, it’s a good idea to talk to your child’s dentist or pediatrician.

These signs may mean the grinding is causing harm or linked to an underlying issue:

• Grinding that causes pain or wakes the child: If your toddler wakes up crying or holds their jaw in discomfort, the grinding may be painful and needs attention.
• Loud, persistent noises: Occasional soft grinding is normal, but loud, ongoing grinding every night may damage the teeth or jaw.
• Jaw clicking or locking: Clicking, popping, or locking sounds from the jaw could signal stress on the jaw joint (TMJ).
• Damage to teeth or gums: Look for signs like worn-down teeth, chipped enamel, or sore gums; these may mean the grinding is too strong or frequent.

If any of these signs are present, early treatment can help prevent long-term dental issues.

How to Stop Teeth Grinding in Toddlers

Most toddlers stop grinding their teeth on their own. Still, there are a few simple things you can try at home to help ease the habit and support better sleep.

1. Create a Relaxing Bedtime Routine

A calm bedtime routine helps your toddler feel safe and relaxed before sleep. Warm baths, dim lights, and gentle bedtime stories can signal the body to slow down and reduce nighttime movements like grinding.

2. Addressing Teething Pain

Teething discomfort can lead to grinding as toddlers try to soothe their gums. You can gently massage their gums or give them a clean, cold teether. If the pain seems strong, talk to your pediatrician about safe options to ease it.

3. Monitor Diet and Hydration

Nutrition plays a role in muscle function and sleep quality. Make sure your toddler is getting enough calcium and magnesium through healthy foods like dairy, leafy greens, and bananas. Staying hydrated also helps relax the muscles and reduce grinding.

4. Reduce Stress or Anxiety Triggers

Even small changes can stress a toddler, leading to grinding during sleep. Spend quiet time together each evening, keep routines predictable, and offer comfort if your child seems anxious or overstimulated before bed.

5. Try White Noise or Soothing Sounds

Soft background sounds can help your child stay in a deeper sleep, which may reduce grinding. White noise machines, soft music, or nature sounds can block out sudden noises and create a more peaceful sleep space.

6. Track Grinding Frequency at Home

Keeping a simple record of when grinding happens can help spot patterns. Note what your child ate, whether they were teething, or if anything in their routine changed. This info can be helpful if you decide to speak with a dentist or doctor.

These steps can help ease mild teeth grinding over time. If the grinding continues or gets worse, a pediatric dentist can guide you on what to do next.

When to See a Pediatric Dentist or Doctor

Most toddlers who grind their teeth don’t need medical treatment. But in some cases, it’s best to get a professional opinion to make sure nothing serious is going on.

If you notice worn-down teeth, flat edges, or chipped enamel, it could be a sign that the grinding is too strong or happening too often. Jaw pain, clicking, or stiffness may also point to a problem with the jaw joint, known as TMJ.

Grinding is usually considered normal in toddlers, but if it continues past age 6, it may need a closer look. By this age, children’s bites should begin to settle, and the habit should fade.

A pediatric dentist can examine your child’s mouth and recommend the next steps. In rare cases, they might suggest a custom night guard or refer you to a specialist for a sleep or jaw assessment. Early support can prevent future issues with teeth or jaw alignment.

Special Considerations by Age

Teeth grinding in toddlers can vary depending on their age and stage of development. Below is a breakdown that outlines common patterns, possible causes, and when to seek attention:

Most of the time, age-related grinding isn’t a cause for concern. Still, watching for changes in frequency, loudness, or signs of discomfort can help you spot issues early and take action if needed.

Wrapping Up

I’ve learned that understanding toddler grinding teeth in sleep can really ease some of that parent worry. Most of the time, it’s harmless and fades on its own, but now you know when to keep a closer eye or reach out for help.

You can start by trying a few simple changes at home and noticing any patterns. I’ve included tips that helped me feel more in control, and they can guide you, too.

If you’re looking for information on toddler sleep, teething, or healthy habits, check out my other parent-friendly guides and blogs for practical support.