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

Part of paid clinical trials in Chapel Hill, North Carolina.

Sponsor
University of North Carolina, Chapel Hill
Study ID
NCT04117360
Status
Recruiting
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Conditions

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

Eligibility Criteria

Sex
ALL
Age
15 Years - 40 Years
Healthy Volunteers
Not accepted

Interventions

  • Orthognathic surgery and Orthodontics — OTHER
    This study is observational. All subjects identified to participate will be undergoing orthognathic jaw surgery and orthodontic treatment.

Study Details

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.

Key Dates

Start date
Sep 11, 2019
Status verified
May 2025
Primary completion
Dec 31, 2026
Completion
Dec 31, 2026

Study Design

Enrollment
180 participants (estimated)

Arms

  • Arm: Dentofacial Disharmony Patients
    Dentofacial disharmony patients who are seeking jaw surgery in UNC oral and maxillofacial surgery department and are seen in UNC orthodontic dentofacial disharmony clinic.

Primary Outcome Measure

Change in Speech Distortion Phonemes over Time [ Time Frame: pre-operation through 9-15 months post-operation ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of North CarolinaChapel HillNorth Carolina27514
Laura A Jacox, DMD, PhD, MS
[email protected]
847-702-0988
Laura A Jacox, DMD, PhD, MS (PRINCIPAL_INVESTIGATOR)

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By research site
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