Conditions / Mouth breathing
Mouth breathing
When the default mode of breathing is through the mouth rather than the nose, the lips often rest apart and the tongue rests low in the mouth. Over time, this affects how the face develops, how the teeth align, and how well you sleep.
What it is
Nasal breathing is the anatomical default: air is filtered, humidified, and warmed; nitric oxide is produced; the diaphragm works efficiently. Mouth breathing bypasses most of this.
In children, chronic mouth breathing is associated with long-face growth patterns, narrower dental arches, and disrupted sleep. In adults, it is associated with snoring, fragmented sleep, dry mouth, and increased dental decay risk.
Nasal breathing is the body's anatomical default. When the lips rest apart and the tongue rests low, we lose the architectural support that shapes how the face grows.
Common signs
- ·Lips apart at rest
- ·Dry mouth on waking
- ·Snoring or noisy sleep
- ·Frequent nasal congestion
- ·Forward head posture
- ·Bedwetting in older children (when paired with other signs)
How myofunctional therapy may help
Educational, not diagnostic. Outcomes vary; results are not guaranteed.
Restore nasal breathing as the default through lip-seal training, tongue-up posture, and breathing exercises.
Coordinate with your allergist, ENT, or dentist when the cause is structural (e.g., enlarged tonsils, deviated septum).
What to expect
A 60-minute evaluation identifies the cause (habit, structural, or both).
A typical program runs 4–6 months for adults and 6–9 months for children.
Lip-seal and daytime nasal-breathing cues often shift in the first 2–3 weeks.