Bruxism in Infants: Causes, Signs & When to See a Dentist

What parents should know

If you’ve heard your baby grinding their teeth at night, you’re not alone. Many parents notice this sound during their child’s first months of teething and wonder whether it’s normal — or something to worry about.

The good news? Bruxism in infants is fairly common and often harmless. Still, it’s worth understanding what’s going on, when to monitor it, and when to ask your dentist for advice.

At Aesthetique Dental Care, we often reassure parents who bring this up during their child’s routine visits. This guide explains what infant bruxism means, why it happens, and how to protect your little one’s developing smile.

What is bruxism in infants?

Bruxism in infants refers to teeth grinding or jaw clenching that happens when babies are awake or asleep. It can begin as soon as their first teeth erupt — often around 6 to 10 months — and may continue on and off into early childhood.

When you listen closely, you might hear:

  • A clicking or scraping sound at night
  • Tiny movements of the jaw
  • Light tapping or gnashing noises during play or naps

Unlike in adults, where tooth grinding can cause significant wear, infant bruxism is usually mild and temporary. Still, it’s useful to know the potential causes and signs that suggest you should mention it during your child’s next check-up.

Why does bruxism happen in infants?

Dentists and researchers believe bruxism in infants has several possible triggers. Most are related to normal growth and early development.

Here are the most common reasons:

Common causes of infant bruxism
Possible causeWhat happensTypical age range
Teething discomfortBabies grind to soothe gum pressure.6–18 months
Exploring new sensationsEarly tooth contact feels new — they experiment with it.6–24 months
Ear or jaw pressureGrinding relieves pressure from mild ear discomfort.6–36 months
Developing bite alignmentJaw muscles adjust as new teeth erupt.6 months–3 years
Stress or sleep transitionsOverstimulation or tiredness may trigger grinding at night.From 1 year onwards

At Aesthetique Dental Care, our dentists see this pattern frequently during a baby’s teething phase. It’s a sign their muscles and teeth are adapting — a part of normal development.

If, however, grinding persists beyond early toddler years or becomes more intense, it’s worth seeking professional advice.

Signs of infant bruxism to watch for

While many cases of bruxism in infants go unnoticed, attentive parents may spot a few subtle clues:

  • Grinding or clenching sounds during sleep
  • Flattened or worn edges on baby teeth
  • Redness around the gums
  • Mild jaw tension or cheek-biting
  • Fussiness during teething
  • Sleep disruption

Occasionally, persistent grinding can lead to tooth wear or irritated gums. You can learn more about managing early tooth wear and bruxism on our dedicated page: Tooth wear and bruxism treatment.

Is bruxism in infants dangerous?

In most cases, infant bruxism is nothing to worry about. It usually stops once teeth and bite alignment stabilise — often by age three.

However, if your child’s grinding is frequent, loud, or causing damage, your dentist may want to investigate further. Continuous pressure from grinding could occasionally:

  • Wear down enamel prematurely
  • Irritate gum tissue
  • Cause mild jaw stiffness
  • Disrupt sleep

The NHS notes that teeth grinding in children tends to improve as they grow and doesn’t usually require treatment unless symptoms are severe.

If you’re unsure whether your child’s bruxism is normal or concerning, a routine dental check-up is the best place to start.

How dentists diagnose bruxism in infants

When you mention tooth grinding at your baby’s appointment, your dentist will:

  1. Examine the teeth for wear or flattening.
  2. Check the gums and jaw for tenderness.
  3. Review medical and teething history.
  4. Discuss feeding and sleep patterns.

In most cases, reassurance and monitoring are enough. If there’s significant tooth wear, your dentist might suggest returning sooner or, rarely, referring you for specialist assessment.

At Aesthetique Dental Care, we keep careful digital records and photos of developing teeth — making it easier to spot subtle changes over time.

Practical ways to help with infant bruxism at home

If your baby grinds their teeth, there are gentle things you can do to make them more comfortable.

1. Ease teething discomfort

Use a chilled (not frozen) teething ring or a clean, cold cloth to massage the gums. This can reduce the urge to grind.

2. Encourage relaxation before bed

Create a calm bedtime routine — a warm bath, story, and quiet play help reduce overstimulation that may trigger grinding.

3. Avoid unnecessary teething gels

Some over-the-counter gels aren’t recommended for very young children. Always follow your dentist’s or pharmacist’s advice.

4. Monitor feeding habits

Extended bottle use or dummy sucking can affect bite development. Begin weaning from bottles by 12–18 months when possible.

5. Keep up regular dental visits

Routine checks allow early detection of any wear or bite issues. Book your child’s first check-up soon after their first tooth appears or by age one.

How dentists manage persistent bruxism in infants

Treatment for infant bruxism depends on its cause and severity. Most cases resolve naturally, but in certain situations, we may recommend:

Managing infant bruxism: approaches and when to use them
ApproachWhen usedWhat it involves
Observation & reassuranceMost mild casesMonitor at regular visits.
Gentle bite checksIf grinding persists past age threeTrack jaw growth and alignment.
Behavioural adviceFor anxious or overtired toddlersCalming bedtime habits and comfort techniques.
Protective optionsRarely, for older childrenCustom mouthguards may protect enamel if grinding continues.

Every plan is tailored — no two babies’ needs are exactly alike. Our team at Aesthetique Dental Care focuses on prevention and reassurance, keeping care as non-invasive as possible.

Why parents trust Aesthetique Dental Care

  • Our clinicians have decades of experience in children’s and family dentistry, regularly supporting families through early teething, tooth wear, and bite development.
  • We use the latest diagnostic tools and preventive strategies for managing bruxism in infants and older children.
  • Our guidance is aligned with the latest research and NHS advice, and our bruxism treatment page includes in-depth resources for parents.
  • Every discussion is handled with empathy and clarity. We explain what’s normal and what’s not — never recommending unnecessary treatment.

When to see a dentist about infant bruxism

Book a review if you notice:

  • Grinding that’s loud or persistent
  • Teeth that look flat or chipped
  • Swollen or bleeding gums
  • Jaw clicking or soreness
  • Sleep problems linked to grinding

You can request a family-friendly appointment via our routine care page or visit our main site at Aesthetique Dental Care.

If you’re not sure whether it’s urgent, it’s always best to ask — our reception team can guide you.

Final thoughts

Hearing your baby grind their teeth can be unsettling, but in most cases, it’s a harmless phase that passes with time. Infant bruxism is often just part of growing up — an early sign your child’s teeth and jaw are finding their rhythm.

Still, it’s always wise to mention it during your child’s next check-up at Aesthetique Dental Care. Our friendly team will assess their teeth gently, explain what’s normal, and give you peace of mind.

If you’d like to learn more about bruxism in infants or how we manage tooth wear in both children and adults, explore our dedicated bruxism treatment page.

Your baby’s smile is in safe hands — and with regular care and reassurance, it’ll stay that way.

What parents often ask about infant bruxism

Is bruxism in infants normal?

Yes, mild tooth grinding is common when baby teeth erupt. It’s usually temporary and not harmful.

If grinding is loud, persistent, or causing visible wear, book a check-up. Your dentist can assess if it’s purely developmental or if intervention is needed.

Occasionally, prolonged grinding can wear enamel or irritate gums, but this is rare. Regular dental monitoring helps prevent long-term issues.

Yes, teething is one of the most common causes. Babies grind to ease gum pressure and explore new sensations in their mouths.

Most children stop grinding once their full set of baby teeth has erupted — usually by age three. If it continues beyond that, ask your dentist for advice.

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