What Does Myofunctional Therapy Treat

You may have heard the term myofunctional therapy mentioned alongside children's orthodontics or breathing issues. But what exactly does it treat, and who might benefit from it?

This article explains the conditions myofunctional therapy addresses and how it works as part of a broader approach to oral health.

What Is Myofunctional Therapy

Myofunctional therapy is a structured program of exercises that retrain the muscles of the face, mouth, and tongue. These muscles play an important role in breathing, swallowing, speaking, and even how your face develops over time.

When these muscles function incorrectly — a pattern called orofacial myofunctional disorder — they can contribute to a range of issues including crooked teeth, mouth breathing, and poor sleep quality.

The therapy focuses on establishing proper oral rest posture, nasal breathing, correct swallowing patterns, and healthy tongue position. It is non-invasive and typically performed over several months.

Conditions Myofunctional Therapy Addresses

Mouth Breathing

Mouth breathing is one of the most common signs that oral muscle function may need attention. Breathing through the mouth instead of the nose can affect facial development in children and contribute to sleep issues at any age.

Myofunctional therapy helps retrain the habit of nasal breathing by addressing tongue posture and strengthening the muscles involved in keeping the airway open during sleep.

Tongue Thrust

Tongue thrust occurs when the tongue pushes forward against or between the front teeth during swallowing. This pressure can cause the front teeth to shift forward over time, creating an open bite or worsening existing alignment issues.

Myofunctional exercises retrain the swallowing pattern so the tongue rests in the correct position — against the roof of the mouth — instead of pushing against the teeth.

Improper Tongue Resting Posture

Where your tongue rests when your mouth is closed matters. Ideally, the tongue should rest gently against the roof of the mouth, with lips sealed and teeth slightly apart.

When the tongue rests low — often due to mouth breathing or structural factors — it cannot support proper upper jaw development. This can lead to a narrow palate, crowded teeth, and a longer facial appearance.

Sleep-Disordered Breathing

Breathing issues during sleep, from snoring to more significant airway obstruction, often have an oral muscle component. Myofunctional therapy is sometimes used alongside other treatments to strengthen the muscles that keep the airway open.

For children, addressing mouth breathing and tongue posture early may reduce the severity of sleep-disordered breathing.

Speech Difficulties

Some speech issues, particularly those related to tongue placement, can be linked to myofunctional disorders. When the tongue does not move correctly for swallowing and resting, it may also affect how certain sounds are produced.

TMJ Discomfort

Improper oral muscle function can place strain on the jaw joint. Myofunctional therapy helps establish balanced muscle patterns, which may reduce discomfort in some cases.

Who Can Benefit from Myofunctional Therapy

Children

Children are the most common candidates for myofunctional therapy because their jaws and facial structures are still developing. Early intervention — typically between ages four and twelve — can guide proper growth and prevent more complex orthodontic issues later.

Signs that a child may benefit include:

• Breathing through the mouth during the day or night
• Snoring or restless sleep
• Thumb sucking beyond age four
• Difficulty chewing certain foods
• Speech concerns related to tongue placement
• Dark circles under the eyes
• Crowded or protruding teeth

Adults

Adults can also benefit from myofunctional therapy, though the goals may differ. Since the jaw is fully developed, therapy focuses more on habit correction and muscle retraining rather than growth modification.

Adults who may benefit include:

• Those with tongue thrust who notice their teeth shifting
• People who breathe through their mouth due to habit
• Individuals who have undergone orthodontic treatment but experience relapse
• Anyone with TMJ discomfort linked to muscle tension

How Myofunctional Therapy Works

A typical myofunctional therapy program involves:

1. Assessment — the dentist or therapist evaluates tongue posture, swallowing pattern, breathing, and oral muscle function.

2. Exercise program — a series of simple exercises is prescribed, targeting specific muscle groups. These exercises are typically done at home for a few minutes each day.

3. Habit retraining — patients learn to maintain correct tongue posture and nasal breathing throughout the day. This conscious retraining becomes automatic over time.

4. Progress monitoring — follow-up appointments track improvement and adjust exercises as needed.

Some patients may also be recommended a removable appliance, worn mainly at night, to support proper tongue and jaw positioning while the exercises retrain muscle function.

Myofunctional Therapy at iSmile Dental Clinic

At iSmile Dental Clinic in Damansara Jaya, myofunctional therapy is available as part of our children's dental and orthodontic care. Every pediatric check-up includes a basic myofunctional screening to assess breathing patterns and oral posture. If concerns are identified, the dentist will discuss whether myofunctional therapy may be helpful.

Taking the Next Step

If you notice your child breathing through their mouth, snoring, or showing other signs that oral muscle function may be off, a dental assessment is a good place to start. For adults who suspect myofunctional issues may be affecting their teeth or sleep, a consultation can help clarify what is going on.

For more information, visit our myofunctional orthodontics page or explore our pediatric dentistry services.