Have you ever noticed yourself or your child breathing through the mouth while watching TV or reading? It’s a common habit that often goes unnoticed, especially in places like Saskatoon, where dry air and seasonal allergies are easy to blame. However, breathing patterns and tongue posture play a much larger role in overall health than many people realize.
How your tongue rests and how you breathe can significantly affect sleep quality, dental alignment, facial development, and long-term oral health.
Dentistry isn’t only about straightening teeth or fixing cavities. The way the facial and oral muscles function has a direct impact on how the jaws develop, how teeth align, and how well the airway stays open both during the day and while you sleep.
The “Lazy” Tongue and Dental Alignment
The tongue is one of the strongest muscles in the body. In a healthy resting position, it should sit gently against the roof of the mouth, supporting the natural shape of the upper jaw.
When the tongue rests low in the mouth or pushes forward against the teeth during swallowing (a pattern known as a tongue thrust), it can act like an orthodontic force but in the wrong direction. Over time, this pressure can contribute to crooked teeth, bite issues, and jaw narrowing.
For children in growing communities like Willowgrove, proper tongue posture is especially important. A tongue resting against the palate helps guide normal jaw development. Without this support, the upper jaw may develop too narrowly, leading to crowding and an increased likelihood of needing orthodontic treatment later in life.
In adults, tongue posture can also explain why teeth sometimes shift years after braces, especially when retainers are no longer worn. In many cases, unresolved tongue thrusting is a hidden cause of orthodontic relapse.
The Connection Between Breathing and Sleep
One of the most important aspects of oral function is breathing, specifically, nasal breathing versus mouth breathing.
Breathing through the nose filters, warms, and humidifies the air before it reaches the lungs, which is especially beneficial during Saskatchewan’s long, cold winters. Nasal breathing also supports the production of nitric oxide, a molecule that improves oxygen absorption and circulation throughout the body.
Chronic mouth breathing, however, may contribute to several health concerns, including:
- Underdeveloped airways, which can negatively affect sleep quality.
- Snoring and sleep apnea are often linked to poor tongue and throat muscle tone.
- Dry mouth increases the risk of cavities, gum disease, and oral infections.
By retraining the tongue to rest against the roof of the mouth and encouraging nasal breathing, it’s often possible to improve airway stability and support deeper, more restorative sleep.
For those interested in learning more about the science behind oral posture and airway health, the Academy of Orofacial Myofunctional Therapy (AOMT) provides evidence-based resources on the connection between oral function and overall health.
Signs of Improper Oral Function
These concerns are often grouped under “orofacial myofunctional disorders” (OMDs). Because they involve muscle function rather than visible disease, they can easily be missed during routine medical or dental checkups.
Common Signs to Watch For:
- Mouth breathing, with lips frequently open at rest.
- Messy or noisy eating, including difficulty managing food.
- Speech concerns, such as a lisp or unclear articulation.
- Teeth grinding (bruxism), which may be linked to airway obstruction.
- Jaw joint (TMJ) pain or frequent headaches, particularly in adults.
Identifying these patterns early can help prevent long-term complications affecting both oral and overall health.
How Muscle Retraining Can Help
Just as physical therapy strengthens and retrains the body, targeted therapy can retrain the muscles of the face, tongue, and jaw. This approach focuses on correcting dysfunctional habits and establishing healthy patterns that become automatic over time.
Myofunctional therapy typically includes exercises designed to support:
- Consistent nasal breathing, day and night.
- Proper lip seal, with lips comfortably closed at rest.
- Correct swallowing patterns, without forward tongue pressure.
The goal is to create new neuromuscular pathways, essentially retraining the brain and muscles to work together more efficiently.
This therapy is often used alongside other treatments. For example, when a child has a tongue-tie (restricted frenulum), releasing the tissue alone may not be enough. Muscle retraining is often essential to ensure the tongue gains proper strength, coordination, and mobility after release.
Taking the Next Step
Ignoring signs of mouth breathing or improper tongue function can lead to long-term dental, sleep, and airway issues. The encouraging news is that muscle patterns can be improved at any age with the right guidance and support.
Whether you’re concerned about your child’s facial development or looking to improve your own sleep quality and oral health, addressing the underlying functional causes, not just the symptoms, can make a meaningful difference.
If you suspect that you or a family member may be experiencing these issues, a professional assessment can help determine the most appropriate next steps.To learn more about how we evaluate and treat these concerns, visit our Myofunctional Therapy page or contact our team at Willow Green Dental.