Tongue thrusting and
swallowing pattern
An atypical swallowing pattern - where the tongue pushes forward against or between the teeth rather than elevating to the palate - is one of the most significant oral motor consequences of tongue tie. It is visible in thousands of children whose orthodontic problems, speech patterns, and facial development are being managed without ever addressing the underlying cause.
Why the swallow matters
Every person swallows approximately 500 to 1000 times per day. Each swallow applies force to the teeth and dental arches. In a normal swallow, the tongue elevates to the palate and the force is distributed upward - reinforcing correct arch development. In a tongue thrust swallow, the tongue pushes forward, applying constant pressure to the front teeth that orthodontic appliances alone cannot fully counteract.
Tongue tie restricts the tongue's ability to elevate. When it cannot reach the palate, it finds the path of least resistance - pressing forward between the teeth. Over years, this reshapes the dental arches, creates an anterior open bite, and drives articulation errors in speech. The swallow itself becomes atypical and self-reinforcing.
The forward tongue pressure of a thrust swallow over thousands of repetitions daily prevents the front teeth from having a vertical overlap, creating a characteristic anterior open bite.
A tongue that thrusts forward during speech as well as swallowing can create difficulty to produce the interdental sounds associated with a lisp - particularly on s, z, sh, ch, and j sounds.
Many children and adults experience relapse after orthodontic treatment because the underlying swallowing pattern was not addressed. Without retraining the swallow, the tongue recreates the original problem.
Tongue thrust and low resting posture are two sides of the same problem. A tongue that cannot elevate rests low - and a tongue that rests low develops a forward thrust pattern as its default.
What the evaluation involves
We assess tongue elevation range, resting posture and swallowing pattern. This gives a functional baseline before any treatment decisions are made.
Dr. Roche assesses whether restricted frenulum is the primary structural cause of low tongue posture and thrust pattern. For children with confirmed restriction, surgical release is going to be part of the treatment combined with myofunctional therapy to retrain swallow.
Releasing the restriction allows the tongue the physical capacity to reach the palate. Without this step, myofunctional exercises are working against a structural barrier.
Post-release, a structured orofacial myofunctional therapy programme retrains correct tongue resting posture, nasal breathing, and swallowing pattern - consolidating the surgical outcome and preventing relapse.
Frequently asked questions
At what age should tongue thrusting be addressed?
Assessment can occur at any age, but earlier intervention gives better outcomes - particularly before permanent dentition is fully established. We treat children of all ages and adults. If an orthodontist has identified tongue position as contributing to dental issues, that is a strong indicator to seek assessment promptly.
Can myofunctional therapy fix tongue thrust without surgery?
If the tongue has adequate range of motion to reach the palate, myofunctional therapy alone can sometimes retrain the swallowing pattern. However, if tongue tie is the structural reason the tongue cannot elevate, exercises will not provide a lasting solution - the restriction must be addressed surgically as part of the treatement.
Will fixing tongue thrust help with the lisp?
In many cases, yes. An interdental lisp caused by forward tongue position often resolves or significantly improves following lingual frenuloplasty and myofunctional therapy. Where speech patterns have become very habituated, SLT input alongside myofunctional work gives the best outcome.
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