Limited studies exist but mechanism is scientifically plausible
The tongue suction hold trains the tongue to maintain proper rest position against the palate. It's a standard component of myofunctional therapy protocols. Evidence is indirect as part of multi-component OMT programs.
Evidence Type: Component of OMT protocols
Trains proper tongue rest position. May improve nasal breathing habits. Component of evidence-based sleep apnea therapy.
May contribute to improved oral posture. Often cited in 'mewing' communities though cosmetic claims lack evidence.
Suction creates vacuum seal that trains tongue to maintain elevated position against palate, keeping it from falling back during sleep.
Active oral infections. TMJ dysfunction exacerbated by exercise. Recent oral surgery.
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