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Jaw surgery may fix more than your Smile—Could it improve speech?

NCT ID NCT04117360

Recruiting now Knowledge-focused Sponsor: University of North Carolina, Chapel Hill Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study looks at how jaw surgery affects speech in people with bite problems like open bite or underbite. Researchers will record patients' speech and tongue movements before and after surgery to see what changes. The goal is to understand why many jaw surgery patients have speech issues and how surgery might help.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this could help speech therapists better understand and treat speech problems in people with jaw misalignment.

What could go wrong

This is an observational study, not testing a treatment. It may not lead to direct improvements for patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Dentofacial Deformities Malocclusion speech disorder Speech Sound Disorder speech-sound disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

DENTOFACIAL ABNORMALITIES DENTOFACIAL ANOMALIES, INCLUDING MALOCCLUSION DENTOFACIAL DEFORMITIES DENTOFACIAL DISHARMONY MALOCCLUSION MALOCCLUSION IN CHILDREN SKELETAL MALFORMATION SKELETAL MALOCCLUSION SPEECH DISORDERS SPEECH SOUND DISORDER

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Email: •••••@•••••

Locations

  • University of North Carolina

    RECRUITING

    Chapel Hill, North Carolina, 27514, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact