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

Description

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

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Study Overview

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Study Details

Study overview

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.

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

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

Condition
Dentofacial Abnormalities
Intervention / Treatment

-

Contacts and Locations

Chapel Hill

University of North Carolina, Chapel Hill, North Carolina, United States, 27514

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Jaw surgery patient at UNC with a skeletal open bite, underbite or overjet greater than 5mm.
  • * Age 15-40 years
  • * Hearing loss
  • * Learned English as a second language
  • * Significant regional accent, as characterized by a speech pathologist
  • * Developmental delay, performing several grade levels below age bracket
  • * history of craniofacial disorder
  • * genetic syndrome associated with known craniofacial presentation
  • * history of craniofacial trauma
  • * history of prior craniofacial surgery (excluding extractions and dental procedures)
  • * Jaw surgery without fixed orthodontic appliances

Ages Eligible for Study

15 Years to 40 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

University of North Carolina, Chapel Hill,

Laura A Jacox, PhD, DMD, MS, PRINCIPAL_INVESTIGATOR, Professor

Study Record Dates

2026-12