Myofunctional therapy is a set of exercises that retrain the muscles in your mouth, face, and throat to move correctly and rest in proper positions. Think of it like physical therapy, but for your tongue, lips, and cheeks. It addresses problems like chronic mouth breathing, improper swallowing patterns, and poor tongue posture, issues that can ripple outward to affect sleep, dental alignment, jaw pain, and facial development.
How the Exercises Work
The exercises themselves are straightforward. You might press your tongue against specific spots on the roof of your mouth, practice lip seals, puff your cheeks against resistance, or rehearse correct swallowing patterns. Each exercise targets a particular muscle group in the face or throat, building strength and coordination over time. Sessions with a therapist typically happen weekly or biweekly, with daily practice at home between visits. Most treatment programs run three to six months, though this varies depending on the condition being treated.
What’s happening beneath the surface is more interesting. The therapy works by rewriting neuromuscular patterns, essentially teaching your brain and muscles a new default. When you repeatedly activate the correct muscles in the correct sequence, the brain’s motor and sensory regions physically adapt. Neuroimaging studies have shown measurable changes in the brain areas that control facial movement after targeted oral exercises. Over weeks and months, what started as a conscious effort becomes automatic. Your tongue learns to rest on the roof of your mouth instead of pressing against your teeth. Your lips close naturally at rest. You swallow without pushing your tongue forward.
Conditions It Treats
Myofunctional therapy addresses a cluster of related problems that stem from how your oral and facial muscles function (or misfunction) day to day.
- Mouth breathing: Chronic breathing through the mouth instead of the nose changes facial development in children and contributes to dry mouth, poor sleep, and dental problems in adults. The therapy retrains nasal breathing as the default.
- Tongue thrust: A swallowing pattern where the tongue pushes forward against or between the teeth. Over thousands of swallows per day, this pressure can shift teeth out of alignment.
- Incorrect tongue resting posture: When the tongue habitually rests low in the mouth or against the front teeth rather than on the palate, it affects jaw development, airway space, and dental positioning.
- Sleep-disordered breathing and obstructive sleep apnea: Weak throat and tongue muscles contribute to airway collapse during sleep. Strengthening them helps keep the airway open.
- Temporomandibular joint (TMJ) disorders: Imbalanced muscle patterns in the jaw and face can drive chronic jaw pain, clicking, and limited movement.
Evidence for Sleep Apnea
The strongest body of research on myofunctional therapy comes from its use in obstructive sleep apnea. A systematic review and meta-analysis found that adults who did the exercises for at least three months cut their apnea-hypopnea index (a measure of how many times breathing stops or becomes shallow per hour of sleep) by roughly 50%, dropping from an average of 25.2 events per hour to 12.6. That’s a clinically meaningful improvement, enough to shift many people from moderate to mild sleep apnea.
The results in children are equally striking. In one study of 14 children, breathing disruptions during sleep dropped from about 4.9 events per hour to 1.8. A longer-term study tracked children who had already been treated for sleep apnea with surgery and palatal expansion. Those who continued myofunctional therapy remained free of sleep apnea four years later, while a control group saw it return, with breathing disruptions climbing back to 5.3 events per hour. The therapy appears to solidify surgical results rather than replace surgery entirely in pediatric cases.
Preventing Orthodontic Relapse
Anyone who has worn braces knows the frustration of teeth shifting back afterward. A major reason for relapse is that the muscle habits pushing teeth out of place were never corrected. Braces move teeth into alignment, but if your tongue still pushes forward thousands of times a day when you swallow, those teeth will drift again.
Research on anterior open bite (a gap between the upper and lower front teeth when biting down) illustrates this clearly. Patients who received myofunctional therapy alongside orthodontic treatment had an average relapse of just 0.5 millimeters. Those who had orthodontics alone relapsed an average of 3.4 millimeters, a statistically and clinically significant difference. For people investing time and money in orthodontic correction, addressing the underlying muscle dysfunction can be the difference between a lasting result and a disappointing one.
What a Typical Program Looks Like
Treatment usually begins with an assessment of how you breathe, swallow, and position your tongue at rest. The therapist watches for patterns like lip incompetence (lips that don’t naturally stay closed), a low tongue posture, or a forward swallowing pattern. From there, they design a progressive exercise program tailored to your specific issues.
Early sessions focus on building awareness. Many people don’t realize their tongue rests in the wrong spot or that they breathe through their mouth during sleep. The exercises start simple, isolating individual muscles, then progress to coordinating multiple movements into functional patterns like proper swallowing. You’ll typically spend 10 to 20 minutes a day on home exercises. Consistency matters more than intensity here. The goal is repetition over weeks and months until the new patterns become your unconscious default.
Children as young as four or five can begin therapy, though the exercises are adapted to be age-appropriate and often game-like. Adults benefit too, though retraining patterns that have been in place for decades can take longer.
Who Provides It
Myofunctional therapy doesn’t have its own standalone professional license. Instead, it’s practiced by professionals from several allied health fields, most commonly dental hygienists, speech-language pathologists, and dentists who have completed specialized training. Some physical therapists and occupational therapists practice it as well.
Certification exists but is voluntary in nearly all jurisdictions. Alberta, Canada is the only region that currently requires certification to practice. Organizations like the Academy of Orofacial Myofunctional Therapy offer certification programs, and an increasing number of professional bodies are moving toward standardized training requirements. When looking for a provider, it’s reasonable to ask about their specific training in myofunctional therapy, how many patients they’ve treated, and whether they hold any voluntary certification. The field is growing quickly, and training quality varies.
What It Does Not Replace
Myofunctional therapy works best as part of a broader treatment plan rather than a standalone fix. For sleep apnea, it may reduce severity enough to make CPAP more tolerable or, in mild cases, serve as a primary intervention, but it doesn’t eliminate the need for a sleep study or medical evaluation. For orthodontic issues, it complements braces or aligners rather than replacing them. For TMJ disorders, it often works alongside other approaches like splints or stress management.
The therapy’s strength is in correcting the underlying muscle dysfunction that contributes to these conditions. When the root habit goes unaddressed, treatments that only fix the visible problem tend to see their results fade over time. Myofunctional therapy targets the habits themselves.