Is Your Child a Mouth Breather?

Have you noticed your child breathing through their mouth — sitting watching television, concentrating on homework, or asleep with their mouth open? It's easy to see as a small habit, or not to notice at all. But while a child is growing, how they breathe is worth paying attention to.

This is general information for parents rather than a diagnostic guide. If something here sounds familiar, it's a prompt to have it looked at, not a cause for alarm.

What to look for

Mouth breathing tends to show up in small, consistent ways: lips apart at rest, sleeping with the mouth open, noisy breathing or snoring at night, a dry mouth in the morning, or frequent thirst.

There can be daytime signs too — tiredness despite enough sleep, difficulty concentrating, or restlessness. Children who sleep poorly don't always seem sleepy; sometimes they seem wired or unfocused instead, which is easy to attribute to something else entirely.

Why it matters during growth

Breathing through the nose isn't only about comfort. The nose filters, warms and humidifies air before it reaches the lungs, and nasal breathing supports a resting tongue position that plays a part in how the jaws and face develop.

When a child breathes through the mouth much of the time, that resting posture changes. Over a period of growth, this is thought to influence jaw development and how the teeth come through. This is why noticing it early is worth doing — not because something has gone wrong, but because childhood is when growth is still underway.

Common reasons

There are several possible reasons a child breathes through their mouth. Nasal congestion — from allergies, a cold, or ongoing sinus issues — is common. Enlarged tonsils or adenoids can reduce the available space. And sometimes it simply becomes a habit that persists after the original reason has resolved.

Because the causes differ, the right response differs too, which is why an assessment is more useful than a general remedy.

What to do

If you've noticed these signs, the useful step is to have your child assessed — by your GP or paediatrician, and by a dentist who can look at jaw development, tongue position and how the teeth are coming through. Where tonsils, adenoids or persistent congestion are involved, that's a medical matter for the appropriate professionals.

The reassuring part is that this is a common thing to notice, and noticing it is the valuable bit. If you have questions about your child's breathing or jaw development, get in touch with TMJ Therapy Centre and we'd be glad to take a look.