You've probably noticed it at some point — your child sleeping with their mouth wide open, or breathing through their mouth during the day even when they seem perfectly healthy. Maybe you mentioned it to your pediatrician and were told it's normal. Maybe you've been wondering about it for a while but weren't sure if it was worth worrying about.
Here's our honest answer: chronic mouth breathing in children is worth paying attention to. It's not always a serious problem, but it's never something to simply dismiss.
What's the Difference Between Occasional and Chronic Mouth Breathing?
Almost every child breathes through their mouth sometimes — when they have a cold, during intense physical activity, or when they're deeply focused on something. That's completely normal.
Chronic mouth breathing is different. It means your child is regularly breathing through their mouth even when their nose isn't congested. That pattern, sustained over months and years, can have real effects on development.
Why Does Chronic Mouth Breathing Happen?
Nasal obstruction — Enlarged adenoids or tonsils, chronic allergies, or a deviated septum can make nasal breathing difficult.
Narrow upper arch — When the upper jaw is narrow, the roof of the mouth is high and vaulted, which reduces the space available in the nasal cavity above it.
Low tongue posture — The tongue should rest gently against the roof of the mouth when at rest. If it habitually rests on the floor of the mouth instead, it doesn't support the upper arch from the inside.
What Can Happen If It Goes Untreated?
Changes to facial development. The face literally grows differently when a child is a chronic mouth breather — the lower jaw tends to drop, the face becomes longer and narrower, and the upper arch narrows.
Poor sleep quality. Mouth breathing during sleep is less efficient than nasal breathing and is associated with more frequent arousals and lighter sleep stages.
Behavioral and cognitive effects. Chronically sleep-deprived children often present as hyperactive or inattentive. Research has shown that some children diagnosed with ADHD actually have a primary sleep and breathing disorder.
What Can Be Done?
Palate expansion is often a cornerstone of treatment. At Anchor Orthodontics, we use 3D-printed expanders that are far more comfortable to insert than traditional expanders. Coordination with ENTs, myofunctional therapists, and sleep physicians is almost always part of the picture.
When Should You Come In?
If you're seeing signs of mouth breathing, snoring, or disrupted sleep, don't wait. Earlier is always better when it comes to jaw and airway development.
Our Providence office is at 133 Pitman Street on the East Side. Book a consultation online or call us at (401) 782-1221.
