Atypical Swallowing and Crooked Bites: What the Evidence Shows

We swallow hundreds of times a day, mostly without noticing. When the tongue takes the wrong position during each swallow — pushing forward against or between the teeth instead of up against the palate — the cumulative force can reshape the bite. This systematic review, registered in advance on PROSPERO and following the PRISMA reporting standard, gathered the evidence on how atypical swallowing relates to malocclusion and what can be done about it.

The authors searched PubMed, Scopus, and Web of Science for studies linking this swallowing pattern to misaligned teeth and jaws, and for trials testing treatment. The picture that emerges treats the tongue not as a passive passenger but as a powerful, repetitive force acting on the growing dentition — and one that myofunctional therapy and orthodontics may need to address together.

This matters because it points upstream from the visible problem. Straightening teeth that are being pushed out of place by a faulty swallow risks the teeth simply drifting back. Recognising atypical swallowing as a root cause — rather than just managing the crooked result — is exactly the kind of better question this project is built around.