Does it matter if your child breathes through their mouth or their nose? Apparently so. Mouth breathing can affect everything from your child’s facial development to their sleep and overall health. Let’s dive into why nasal breathing is vital and how you can help your child develop healthy habits.
How Do You Know If Your Child Is a Mouth Breather?
Many children mouth breathe mainly at night, which means parents don’t always notice until the signs start adding up. Look out for:
- Sleeping with their mouth consistently open
- Snoring or noisy breathing during sleep
- Waking up with a dry mouth or bad breath in the morning
- Chapped or cracked lips
- Restless, unsettled sleep
- Seeming tired despite a full night’s rest
- Frequently blocked nose that doesn’t seem to be linked to a cold
If several of these sound familiar, it’s worth getting checked out, even if your child seems fine during the day.
Why Mouth Breathing Matters
Mouth breathing during childhood can lead to underdeveloped jaws, overcrowded teeth, and even long-term health issues. Dentists and orthodontists agree: for proper facial growth and dental health, children need to breathe through their nose.
Nasal breathing ensures that the tongue is in the correct position (resting against the roof of the mouth) which helps guide proper jaw and facial development. Without this natural support, the upper jaw may become narrow, leading to crooked teeth and other orthodontic issues.
Timing matters here too. The window for the most impact is early, before around age seven or eight, the facial bones are still malleable and habits formed now shape development in ways that become progressively harder to correct later. Early intervention isn’t about being alarmist; it’s genuinely where the difference is made.
Physical Effects of Mouth Breathing
Mouth breathing can result in:
- Long, narrow face
- Crowded teeth and smaller jaws
- Swollen tonsils
- Gummy smiles
- Dry mouth and cracked lips
- Dark circles under the eyes
- Jaw misalignment or crossbite
Health Impacts of Mouth Breathing
The consequences of mouth breathing go beyond appearance. It can:
- Disrupt oxygen levels in the body, leading to fatigue and poor concentration
- Contribute to sleep problems like snoring and sleep apnea
- Exacerbate conditions like asthma, allergies, and sinus infections
- Increase the risk of gum disease and bad breath
Causes of Mouth Breathing in Children
- Allergies or chronic nasal congestion
- Enlarged tonsils or adenoids
- Deviated septum
- Prolonged pacifier or bottle use
- Insufficient suckling during infancy
Treatment for Mouth Breathing
Step 1: Start With Your GP
Your GP is the right first port of call. They can assess whether there’s an underlying cause (e.g enlarged tonsils or adenoids, a deviated septum, or persistent allergies), and refer on from there. Be aware that public ENT waitlists can be long; if you’re concerned and can access private care, it’s worth considering for the initial assessment.
Step 2: Get an ENT Check-Up
If your GP refers you on, an ENT specialist can rule out any physical obstructions such as nasal polyps or enlarged tonsils that may need to be addressed before any retraining can be effective.
Step 3: Try Myofunctional Therapy (MFT)
Myofunctional therapy focuses on retraining the tongue and facial muscles for proper posture and function — think of it as physiotherapy for the mouth and airway. A myofunctional therapist will work with your child on a series of targeted exercises to retrain the tongue to rest correctly, strengthen the muscles involved in nasal breathing, and correct swallowing patterns that may have developed as a result of mouth breathing.
Treatment typically involves weekly or fortnightly sessions over several months, with exercises to practise at home in between. It’s often paired with orthodontic treatment to optimise results.
Simple Exercises to Encourage Nasal Breathing
- Lip seal exercise: Hold a sheet of paper or a toothpick between the lips to encourage a closed-mouth posture.
- Button pull exercise: Attach a thread to a button and place it inside the lips. Use lip pressure to hold the button in place as someone gently pulls the string.
- Humming: Encourage your child to hum with their lips closed — simple, effective, and easy to make into a game.
Retraining Breathing Patterns
Night-time habits are key. Here’s how to help:
- Practice the Buteyko Method, a proven breathing technique that retrains over-breathers to breathe naturally through their nose.
- Consult a physiotherapist who specialises in breathing disorders.
- Mouth taping, using porous surgical tape to gently encourage lip closure during sleep. It is sometimes recommended by specialists, but this should only ever be done under professional guidance and is not something to attempt without first consulting your child’s healthcare provider.
Additional Tips for Modern Families
- Incorporate breathing exercises into play: Use yoga or mindful breathing games to make nasal breathing practice feel like fun rather than a chore.
- Reduce allergens at home: Air purifiers can make a real difference for children whose mouth breathing is driven by chronic nasal congestion, particularly during allergy season. Regular washing of bedding at high temperatures also helps reduce dust mite exposure.
- Talk to your child’s dentist or orthodontist: They are often the first to spot the signs of mouth breathing in children and can refer you to the right specialists. If your child is due for a check-up, it’s worth raising it.
Early intervention is key to preventing the long-term effects of mouth breathing. From better jaw alignment to improved sleep, teaching your child to breathe through their nose can make a world of difference. If you notice signs of mouth breathing, start with your GP, ask for a referral, and explore myofunctional therapy as part of the picture. The earlier you act, the more options you have.
