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Orthognathic Speech Pathology: Phonetic Contrasts of Patients With Dental Discrepancies Pre- and Post-Treatment Analyses

NCT04117360 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 180

Last updated 2025-05-25

No results posted yet for this study

Summary

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.

Conditions

  • Dentofacial Abnormalities
  • Dentofacial Deformities
  • Dentofacial Anomalies, Including Malocclusion
  • Malocclusion
  • Malocclusion in Children
  • Dentofacial Disharmony
  • Skeletal Malocclusion
  • Skeletal Malformation
  • Speech Sound Disorder
  • Speech Disorders

Interventions

OTHER

Orthognathic surgery and Orthodontics

This study is observational. All subjects identified to participate will be undergoing orthognathic jaw surgery and orthodontic treatment.

Sponsors & Collaborators

  • North Carolina State University

    collaborator OTHER

  • University of North Carolina, Chapel Hill

    lead OTHER

Principal Investigators

  • Laura A Jacox, PhD, DMD, MS · Professor

Eligibility

Min Age
15 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-09-11
Primary Completion
2026-12-31
Completion
2026-12-31

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04117360 on ClinicalTrials.gov