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Related Experiment Videos

Speech and lingual behavior before and after mandibular osteotomy.

L Glass, J Knapp, H H Bloomer

    Journal of Oral Surgery (American Dental Association : 1965)
    |February 1, 1977
    PubMed
    Summary

    Mandibular osteotomy for Class III malocclusions significantly alters oral behaviors. Post-surgery, patients show improved sibilant articulation but increased maladaptive lingual behaviors and changes in swallowing patterns.

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    Area of Science:

    • Oral and Maxillofacial Surgery
    • Speech-Language Pathology
    • Orthodontics

    Background:

    • Class III malocclusions often require surgical intervention like mandibular osteotomy.
    • Understanding post-surgical oral behavior changes is crucial for patient recovery and functional outcomes.
    • Previous research has not fully detailed the impact on speech articulation, lingual function, and swallowing.

    Purpose of the Study:

    • To evaluate the effects of mandibular osteotomy on oral behaviors in patients with Class III malocclusions.
    • To identify specific changes in speech articulation, lingual diadochokinetic tasks, and swallowing patterns post-surgery.

    Main Methods:

    • A prospective study involving five patients undergoing mandibular osteotomy.
    • Audio-videotaped recording of speech, lingual diadochokinetic tasks, and swallowing performance.
    • Comparative analysis of oral behaviors before and after the surgical procedure.

    Main Results:

    • Observable changes in oral behavior were documented post-mandibular osteotomy.
    • A reduction in sibilant articulation errors was noted.
    • An increase in maladaptive lingual behaviors during lingual diadochokinetic tasks was observed.
    • Significant alterations in swallowing behaviors were identified.

    Conclusions:

    • Mandibular osteotomy leads to measurable changes in oral motor functions.
    • Post-surgical speech and swallowing rehabilitation may need to address specific challenges like increased maladaptive lingual behaviors.
    • Further research with larger cohorts is warranted to confirm these findings.

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