The Connection Between Tongue Posture & Facial Growth

How the Tongue Acts as a Natural Palate Expander

The tongue is more than just a muscle used for speaking and eating. It serves as a natural support system for the upper jaw (palate).

When the tongue rests properly against the roof of the mouth:

• It applies gentle, consistent pressure

• This pressure helps widen and shape the palate over time

• It supports proper spacing for teeth to erupt

Think of the tongue as a built-in expander that works gradually and naturally throughout development.

However, when the tongue rests low in the mouth (often due to mouth breathing or oral habits), that support is lost. Without this pressure, the palate may become narrow, which can contribute to crowding and airway limitations.

The Impact on Jaw Development

Tongue posture doesn’t just affect the palate. It influences the entire structure of the face.

Proper tongue positioning helps:

• Promote forward growth of the upper and lower jaws

• Support balanced facial development

• Maintain alignment between the jaws and teeth

In contrast, low tongue posture and mouth breathing patterns can contribute to:

• Narrow upper jaws

• Recessed or underdeveloped lower jaws

• Dental crowding and bite issues

• Changes in facial appearance over time

These patterns develop gradually, which is why they can go unnoticed until orthodontic concerns arise.

Why Early Intervention Matters

The earlier these patterns are identified, the more effectively they can be addressed.

Children’s bodies are still growing and adapting, which means:

• Muscle patterns can be retrained more easily

• Jaw development can be better supported

• Long-term complications may be reduced

Waiting to see if they “outgrow it” can allow these patterns to become more established, making them harder to correct later.

Orofacial myofunctional therapy focuses on:

• Establishing proper tongue resting posture

• Encouraging nasal breathing

• Retraining functional patterns like swallowing

By addressing these foundational habits early, we can support healthier growth, improved breathing, and more stable orthodontic outcomes.

Our Approach

At Midwest Myofunctional Specialists, we take a comprehensive approach to evaluating how the muscles of the face and mouth influence growth and development.

If you have questions about your child’s oral development or want to learn more, we’re here to help.

Contact us to schedule an evaluation or learn more about myofunctional therapy.