Most parents have never heard the term myofunctional therapy until a dentist, orthodontist, or pediatrician brings it up during a routine visit. By then, you might already be noticing something isn’t quite right – your child breathes through their mouth at night, struggles with certain sounds, or just doesn’t seem to be sleeping well – without knowing these things could be connected.
Orofacial myofunctional disorders often develop gradually and can be easy to miss, especially when the signs show up in different parts of daily life rather than all at once. Here’s what to look for at different ages, and when it’s worth scheduling an evaluation with a myofunctional therapist near you.
What Is an Orofacial Myofunctional Disorder?
An orofacial myofunctional disorder (OMD) refers to abnormal patterns involving the muscles of the face, mouth, and tongue – things like resting tongue posture, swallowing, and breathing. For a full explanation of what myofunctional therapy involves and how it works, see our guide on What Is Myofunctional Therapy?
Signs to Watch For in Infants and Toddlers
Feeding Difficulties
Difficulty latching, clicking sounds while nursing, or slow weight gain can sometimes point to restricted tongue movement, which is closely tied to myofunctional function. This is often one of the earliest signs a provider will look for, and it frequently overlaps with tongue-tie, something we cover in detail on our tongue-tie treatments page.
Prolonged Thumb-Sucking or Pacifier Use
Occasional thumb-sucking is normal in infancy, but if it continues well past age three or four, it can start to affect the shape of the palate and how the tongue rests, setting the stage for future myofunctional issues.
Signs to Watch For in School-Age Children
Mouth Breathing
One of the clearest signs is chronic mouth breathing, especially during sleep. If your child’s mouth is open at rest, while watching TV, or while sleeping, it’s worth paying attention to. Mouth breathing is closely linked to sleep quality, which we explore further in Myofunctional Therapy for Sleep Apnea.
Snoring or Restless Sleep
Children aren’t supposed to snore. Regular snoring, tossing and turning, or waking up frequently can all be signs of airway restriction connected to tongue posture and muscle function.
Tongue Thrust Swallowing
Instead of the tongue pressing against the roof of the mouth during a swallow, a tongue-thrust pattern pushes the tongue forward against or between the teeth. Over time, this can affect bite alignment. We break this pattern down fully in What Is Tongue Thrust? Signs, Causes, and Treatment.
Speech Difficulties
Trouble with certain sounds, particularly s, r, l, and th, can sometimes stem from the same muscle patterns that affect swallowing and tongue posture. If your child is already in speech therapy but progress has stalled, a myofunctional evaluation may explain why. More on this connection is available in How Myofunctional Therapy Helps with Speech Delays.
Crowded Teeth or a Narrow Palate
Because tongue posture influences how the upper jaw develops, a narrow dental arch or crowded teeth can sometimes be traced back to years of low tongue rest position. This is part of why myofunctional therapy is often recommended alongside orthodontic treatment, not instead of it.
Signs That Show Up Later: Teens and Adults
Some signs of an untreated myofunctional disorder don’t fully surface until adolescence or adulthood, including jaw tension, orthodontic relapse after braces, or ongoing TMJ discomfort. If this sounds like your teen or yourself, our article on Does Myofunctional Therapy Work for Adults? covers what treatment looks like at this stage.
What to Do If You Notice These Signs
Noticing one or two of these signs doesn’t automatically mean your child needs therapy; many are common and resolve on their own. But if you’re seeing a cluster of them together, particularly mouth breathing, snoring, and speech difficulty, it’s worth bringing up at your next dental visit.
An evaluation is the clearest way to know for sure. A trained provider will assess resting tongue posture, breathing pattern, and swallowing function to determine whether therapy is appropriate. Learn what that first evaluation actually involves in Myofunctional Therapy Near Me: What to Expect at Your First Visit.
Frequently Asked Questions
At what age should I have my child evaluated?
There’s no single right age. Feeding-related concerns can be evaluated in infancy, while tongue thrust, mouth breathing, and speech-related signs are often caught between ages four and ten.
Can these signs go away without treatment?
Some mild habits resolve naturally as a child grows. Persistent patterns, especially ones affecting sleep, speech, or dental development, typically don’t resolve without intervention.
Is snoring in children always a sign of a problem?
Not always, but it’s never considered fully normal. Regular snoring is worth mentioning to your dentist or pediatrician, since it can be connected to airway or muscle function issues.
If any of these signs sound familiar, schedule an evaluation at our Chapel Hill, NC office, serving families throughout Chapel Hill, Durham, Carrboro, and the greater Triangle area.