Myofunctional therapy, explained

What myofunctional therapy actually is

What myofunctional therapy actually is

The full name is orofacial myofunctional therapy — “orofacial” meaning mouth and face, “myo” meaning muscle. It’s a structured program of exercises and habit retraining delivered by a speech-language pathologist (SLP) or dental professional with specialized training in this area.

Below, we’ve organized what it treats by outcome instead of one big list. That’s deliberate: bedwetting, dark circles, messy eating, a stubborn speech sound, a narrow palate, and orthodontic relapse can each show up for a dozen reasons that have nothing to do with each other. None of them, alone or bundled together, adds up to a single diagnosis. Read every “signs a parent might notice” list below as worth asking about — not as a checklist that proves anything on its own — and notice that the strength of the evidence changes a lot from section to section.

Orofacial resting posture

Most myofunctional therapy aims at one deceptively simple target: resting posture. Ideally, when a mouth isn’t doing anything, the lips are gently closed, the teeth are slightly apart, the tongue rests up against the roof of the mouth, and air moves in and out through the nose. A child holds that posture for something like twenty hours a day, so it’s a slow, powerful sculptor — it shapes the palate, influences how teeth come in, and affects how open the airway stays.

Signs a parent might notice (nonspecific — plenty of kids show one of these with nothing underlying it at all): the mouth hangs open during the day; the tongue sits low or peeks between the teeth at rest, or pushes visibly forward when swallowing; forward head posture or a chin that pokes out. Posture on its own is a very soft signal.

What does the evidence say for resting posture?

What the evidence supports: resting posture is the mechanism most of this field centers on, and it has the most direct, observable rationale — a position a muscle holds for twenty hours a day plausibly shapes growth. But ASHA’s practice guidance on orofacial myofunctional disorders (opens in a new tab) is explicit that the research mostly shows correlations between OMD traits and symptoms, not proof that one causes the other.

Speech sound production

Tongue thrust — the tongue pushing forward against or between the teeth during swallowing and at rest — can distort certain speech sounds: the classic frontal lisp on s and z, plus stubborn sh, ch, l, and r.

Sign a parent might notice: a speech sound that hasn’t moved after a long stretch of regular articulation therapy. This is nonspecific too — hearing, motor planning, and plain developmental timing stall speech sounds just as often as tongue placement does — but it’s a fair reason to ask an SLP whether tongue posture is part of the picture.

What does the evidence say for speech sound production?

What the evidence supports: this is the outcome area with the thinnest research support in the whole field. Treat any promise that nonspeech oral-motor exercise will resolve a speech sound by itself with real skepticism.

Feeding and swallowing

Feeding and swallowing

This covers chewing and swallowing problems: messy eating past toddlerhood, food pocketing in the cheeks, marathon meals, swallowing pieces whole, avoiding foods that require real chewing, and drooling beyond the age it usually settles.

Signs a parent might notice (also nonspecific): eating that’s loud, messy, slow, or gaggy; stuffing the mouth; drinking constantly to wash food down; a food list that leans heavily toward soft things; drooling on the pillow, on homework, or during focused activities. Sensory sensitivities, motor-planning differences, and ordinary picky eating all produce the same list.

If mealtimes are the main worry rather than the mouth mechanics, our parenting tips and sensory processing guide cover the pressure-free approach that makes feeding work go better.

Sleep and airway concerns

Signs a parent might notice (nonspecific, and several overlap with plain medical causes that have nothing to do with muscle habits): sleeps with the mouth open, wakes with dry lips or a dry mouth, chronically chapped lips; snores, sleeps restlessly, sweats at night, grinds teeth, sleeps in strange extended positions, or wakes up looking like they never rested. Bedwetting and dark circles come up constantly in myofunctional marketing, so we want to be plain: both are common, both have many possible causes that have nothing to do with an airway (constipation and urinary tract issues for bedwetting; allergies, eczema, and plain genetics for dark circles, among others), and neither reliably points to an airway or muscle problem by itself.

What does the evidence say for sleep and airway concerns?

What the evidence supports: myofunctional therapy is, at most, one piece of a medical plan for sleep-disordered breathing — never a replacement for one. Snoring, restless sleep, and witnessed pauses in breathing belong in front of a pediatrician first, with an ENT referral or sleep study if warranted. This is the outcome area where we’d most caution against a provider who frames muscle exercises as a fix for a breathing or sleep problem before a doctor has weighed in.

Orthodontic concerns

A tongue thrust can work against orthodontic treatment — the tongue pushes on the teeth for far more hours than any appliance corrects them, which is why many orthodontists build myofunctional support into treatment, or won’t start or finish treatment without it, when a tongue thrust is present. Sucking habits — thumb, finger, or pacifier held on well past the preschool years — can produce similar bite changes and are usually addressed the same way.

Signs a parent might notice: the dentist or orthodontist has used the words “open bite,” “narrow palate,” “crossbite,” or “tongue thrust.” Here too, a particular palate shape or a bite relapsing after braces come off can have several causes — thumb-sucking history, genetics, airway issues, and tongue posture all overlap in this territory, so a specific finding is a reason to ask, not proof of which cause is at play.

What does the evidence say for orthodontic treatment?

What the evidence supports: plausible and widely practiced — enough that many orthodontists build it into their plans — but still mostly correlational. It shows OMD traits and orthodontic findings tend to travel together more often than chance would predict, without nailing down that treating the muscle pattern is what prevents the relapse.

Ankyloglossia / tongue-tie

Tethered oral tissues (tongue-tie, lip-tie) limit how far the tongue or lip can move. Myofunctional therapy is commonly used before and after a release procedure (frenotomy), so the newly freed tongue actually learns a new resting and swallowing pattern instead of drifting back to the old one.

What does current pediatric guidance say about tongue-tie release?

This is an area where the guidance has gotten more specific in the last couple of years, so it’s worth spelling out. The American Academy of Pediatrics’ 2024 clinical report on ankyloglossia says “posterior” tongue-tie specifically is a term that still lacks an agreed-upon definition among experts, and that normal lip and cheek tissue bands (labial and buccal frenula) are sometimes mistaken for a problem needing surgery. The same report describes the evidence behind frenotomy itself as thinner than many parents are told: it may ease a breastfeeding parent’s nipple pain, but the overall evidence quality is weak, and the report encourages trying nonsurgical breastfeeding support first in many cases. It also cautions that stretching exercises after the procedure are not backed by evidence and shouldn’t be treated as routine aftercare — which runs counter to what some practices tell parents to do at home after a release. (Full citation in the sources below.)

What this means for you: a tongue-tie diagnosis — especially a “posterior” one — is worth a second opinion before surgery, and if a release does happen, it’s worth asking your provider directly what their aftercare routine is based on.

When an interdisciplinary assessment is appropriate

None of the sign lists above are meant to be added up into a diagnosis. What actually helps is getting the right specialists looking at the right pieces, in the right order:

What does a full interdisciplinary evaluation actually involve?

1. Start with the pediatrician

   Bring the sleep list: snoring, mouth breathing, restlessness, night sweats, morning fatigue. Ask directly whether an ENT referral or a sleep study is warranted. Snoring in a child is never just cute — it’s information.

2. Loop in the dentist or orthodontist

   They’re looking at palate shape, bite, crowding, wear patterns, and whether a tongue-tie is limiting movement.

3. Get a myofunctional evaluation from a trained SLP

   Expect them to assess resting posture, tongue range and mobility, the swallow pattern, chewing, lip strength and seal, the frenulum under the tongue, nasal breathing, habits, and speech sounds. Ask what specific training they hold in orofacial myology — this is a specialty within speech therapy, not a standard skill every SLP has.

4. Expect a program measured in months, not sessions

   Programs typically run several months with weekly or every-other-week sessions plus a few minutes of daily practice at home. Ask up front how long the program runs and what re-checks look like.

5. Circle back to the dentist or ENT

   If the original goal was the bite, the airway, or orthodontic stability, close the loop with the provider who raised it. Make sure everyone has each other’s reports.

Age matters. A full myofunctional program asks a child to practice a routine, notice their own tongue, and stick with something boring — that generally lands better once a child is in the elementary years. Younger kids aren’t out of luck; their version is feeding therapy and oral-motor work delivered through play.

Adapt for your kid. For autistic, ADHD, or sensory-sensitive children, exercises get delivered as mirror games, timers, character charts, and very short reps. A provider who won’t adapt is the wrong provider — the program only works if it actually happens at home.

Ask about billing before you start. Some of this bills under speech therapy; some practices are self-pay. Get the answer in the first phone call, not the third month.

Who to call around here

Who to call around here

Village families point each other toward Summit Speech, who work in feeding, oral-motor, and myofunctional therapy — find them and the other local options in the feeding & myofunctional directory. If your child already has a speech therapist, start there: “Do you do myofunctional work, or can you refer us to someone who does?”