Ignoring Orofacial Myofunctional Disorders

myofunctional therapy Jun 10, 2025

Orofacial Myofunctional Disorders (OMDs) aren’t really that well-known, but their impact on health and well-being can be huge.

OMDs involve imbalances or dysfunctions of the facial, oral, and throat muscles that can impact everything from breathing to speaking. Although their associated symptoms may at first appear as minor inconveniences, neglecting Orofacial Myofunctional Disorders can lead to a chain of long-term problems, including sleep-disordered breathing, speech difficulties, poor dental health, and even broader systemic issues.

Addressing these problems early is a critical step in ensuring overall quality of life.

Understanding Orofacial Myofunctional Disorders

OMDs are basically abnormal patterns in the use of oral and facial muscles.

These can include habits like thumb-sucking, tongue thrusting (pushing the tongue against the teeth during swallowing), or mouth breathing, as well as structural issues like a tongue-tie.

The muscles of the mouth and face are connected to bodily functions we take for granted, such as chewing, swallowing, speaking, and breathing. When these muscles don’t work harmoniously, the effects can be problematic, to say the least.

OMDs can originate from a variety of causes: protracted pacifier use in childhood, allergies that force mouth breathing, or even genetics. The trouble is that many people won’t recognize the signs until the consequences become severe and they’re dealing with actual health concerns.

The Long-Term Effects

Ignoring OMDs is much like letting a small leak in a roof go unrepaired. Everyone knows that this is a bad idea because the structure will eventually collapse. This can take a long time, but it will happen eventually.

The potential long-term effects of OMDs are much the same. It can take a while but they can eventually affect many areas of our health.

Sleep Disorders

One of the most critical consequences of untreated OMDs is their impact on sleep.

Having correct oral muscle function is vital for maintaining an open airway while asleep. When these muscles are weak or dysfunctional, the airway can become compromised, and this can open the door to sleep-disordered breathing conditions such as Obstructive Sleep Apnea (OSA) or Upper Airway Resistance Syndrome (UARS).

OSA happens when the airway collapses or becomes blocked during sleep. This can lead to interrupted breathing, snoring, and frequent waking. OSA is a serious health issue and is linked to dangerous conditions, including hypertension, heart disease, and diabetes.

Studies have shown that children with untreated OMDs, such as those who mouth breathe due to nasal obstruction, are at a much higher risk of developing sleep apnea later in life.

Adults who ignore these issues may also find their sleep quality deteriorating, which can affect everything from mood and outlook to cognitive function. However, many people don’t connect the dots between their facial muscle habits and their restless nights.

Speech Difficulties

Speech can also be affected when OMDs are neglected for long enough.

The tongue, lips, and jaw need to coordinate precisely in order to produce clear and articulate sounds. But when muscle imbalances interfere, speech can become distorted, causing issues such as lisps, difficulty pronouncing certain sounds (like “s” or “t”), and a generally muffled tone.

This can slow language development down substantially. It can also affect social confidence in children, both of which can lead to academic challenges, teasing, and bullying.
Adults, on the other hand, can develop speech problems that affect communication or even self-esteem. Of course, speech therapy can be very helpul, but if the underlying muscle dysfunctions aren't corrected, then the problem can often linger. Over time, compensatory habits (like straining other muscles to compensate) can make things worse, locking in patterns that are tough to break.

Poor Dental Health

Improper muscle function caused by OMDs can affect dental alignment and oral health.
For example, tongue thrusting pushes against the teeth with every swallow, over and over every day, and can gradually shift them out of place.

Mouth breathing dries out the oral cavity, reducing the protective effects of saliva, changing the microbiome, and, over time, increasing the risk of bad breath, cavities, and gum disease. The result? Crowded, crooked teeth, an uneven bite (malocclusion), or even jaw pain from clenching and grinding and temporomandibular joint (TMJ) dysfunction.

Orthodontic treatment straightens teeth really well, but if the underlying muscle imbalances aren’t addressed, the results may not last, which is why orthodontic relapse is so common.

Untreated OMDs can lead to chronic dental issues, costly interventions, and even tooth loss. It’s a slow process, but the damage compounds year upon year.

The Systemic Effects of OMDs

The adverse effects of OMDs aren't only limited to sleep, speech, and oral health.
Chronic mouth breathing, for example, can affect our oxygen intake and change our carbon dioxide levels, which can stress the cardiovascular system.

Poor chewing or swallowing patterns can affect digestion, and even posture can be affected. Forward head posture often accompanies mouth breathing, leading to neck and back pain over time.

Untreated OMDs can subtly shape facial development in children. A low tongue posture or mouth breathing can narrow the palate, elongate the face, and create a less aesthetically pleasing profile.
This isn’t just about vanity. Narrow airways and misaligned jaws tie back to those sleep and breathing issues. This is another reminder of how interconnected these systems are.

Why OMDs are Hard to Spot and Easy to Ignore

So, why do OMDs fly under the radar?

Well, the symptoms often build up slowly. A child’s slight lisp might seem cute and mild snoring might be shrugged off as normal, and crooked teeth can be put down to being related to genetics.
In addition, the signs and symptoms of OMDs span so many areas - dentistry, speech pathology, and sleep medicine - that it can be tough for a single healthcare professional to connect the dots.

Cultural attitudes can also play a role. Habits like thumb-sucking or mouth breathing are easily dismissed as merely being phases that kids will “grow out of.” And adults might feel that seeking help for something like tongue posture is trivial compared to more serious health concerns. But as the evidence mounts, it’s clear that brushing off OMDs is a gamble.

The Case for Early Action

There is good news - OMDs are very treatable. The earlier you act, the better the outcomes.
Orofacial myofunctional therapy (OMT) is a one of the most important approaches to help treat and address OMDs. It's a specialized exercises program designed to retrain the orofacial muscles.

Combined with interventions like orthodontics, speech therapy, or allergy management, it can halt the progress of OMDs, or even reverse any damage they might have already caused.

Early intervention is so important because it can help to guide proper growth and prevent a lifetime of issues for kids. For adults, it can improve sleep, reduce dental wear, and boost confidence in speaking.

The catch is that you have to recognize the problem first.

Awareness is the key. Parents need to know that a child’s persistent mouth breathing isn’t just quirky! It’s a red flag. Adults need to question whether their chronic fatigue or jaw pain might trace back to something as subtle as how their tongue rests. Dentists, doctors, and therapists need to collaborate more to catch these issues before they spiral.

Creating Awareness

Individual patients aren't the only ones impacted when OMD symptoms are ignored. It's a serious public health concern as well.

Every year, conditions related to sleep-disordered breathing cause billions of dollars in medical expenses. Dental issues can put a load on both people and healthcare systems, while speech problems can reduce human potential and strain our precious educational resources.

So much of this is preventable by spreading the word about OMDs.

Awareness empowers people to take control of their health. It encourages parents to ask the right questions, prompts adults to seek second opinions, and nudges healthcare providers to look beyond their specializations. This allows medical professionals to catch OMDs early and treat them far more effectively. The result will be so many more healthy and happy people.

This is why Orofacial Myofunctional Therapistsare so important. They're trained to recognize and address OMDs, plus they function as the "traffic directors", helping to connect patients with the right providers to make sure they get the care they need to get the best possible outcomes.  

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