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Study identifier: NCT04117360 Synced from ClinicalTrials.gov · July 28, 2026
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Orthognathic Speech Pathology: Phonetic Contrasts of Patients With Dental Discrepancies Pre- and Post-Treatment Analyses

Condition: Dentofacial Abnormalities · Dentofacial Deformities · Dentofacial Anomalies, Including Malocclusion  ·  Sponsor: University of North Carolina, Chapel Hill

PhaseN/A
Planned participants180
Who can joinAll sexes, 15 Years to 40 Years
Healthy volunteersNo

About this study

The investigators are studying how speech is effected by jaw and tooth position in jaw surgery patients. Eighty percent of our jaw surgery patients have speech pathologies, compared to five percent of the general population, but speech pathologists do not understand why. The investigators hypothesize that open bites and underbites prevent most patients from being able to pronounce words normally and surgical correction will lead to improvement in speech. Patients will be audio recorded speaking and patients' tongue gestures ultrasound recorded before and after their jaw surgeries to observe what changes occur in their speech and tongue movements.

This description comes directly from the study's public registry record.

Talk to the study team

Laura A Jacox, PhD, DMD, MS  ·  847- 702-0988  ·  ljacox@ad.unc.edu

Sherrill T Phillips, BS  ·  sherrill_phillips@unc.edu

Always discuss trial participation with your own doctor first.

Locations (1)

University of North CarolinaChapel Hill, North Carolina, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT04117360