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[Swallowing pattern in skeletal Class III malocclusion]

Y Zhou1, M Fu, C Wang

  • 1School of Stomatology, Beijing Medical University.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|November 1, 1995
PubMed
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Skeletal Class III malocclusion involves a lower tongue, hyoid, and mandible posture, leading to an abnormal tongue retraction swallowing pattern. This adaptable change can alter dentoalveolar structures over time.

Area of Science:

  • Dentistry
  • Orthodontics
  • Biomechanics

Context:

  • Skeletal Class III malocclusion is characterized by specific craniofacial and dental discrepancies.
  • Understanding the functional adaptations, such as swallowing patterns, is crucial for comprehensive diagnosis and treatment planning.
  • Computerized videofluoroscopy offers advanced visualization of dynamic oral and pharyngeal functions.

Purpose:

  • To compare the swallowing patterns of adults with normal occlusion and those with skeletal Class III malocclusion.
  • To identify characteristic differences in tongue, hyoid, and mandible positioning during swallowing in skeletal Class III malocclusion.
  • To investigate the relationship between abnormal swallowing patterns and dentoalveolar changes in skeletal Class III malocclusion.

Summary:

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  • Adults with skeletal Class III malocclusion exhibit a lower resting position of the tongue, hyoid bone, and mandible compared to normal occlusion individuals.
  • A distinct tongue retraction swallowing pattern, characterized by upward and backward tongue movement with persistent lip and molar separation, was observed in skeletal Class III malocclusion patients.
  • The abnormal swallowing pattern appears to be an adaptive response to dentoalveolar disharmony, with potential for long-term alteration of dentoalveolar structures.

    • Impact:

    • Provides insights into the functional adaptations associated with skeletal Class III malocclusion.
    • Highlights the potential role of swallowing patterns in the etiology and progression of dentoalveolar changes.
    • Informs orthodontic and surgical treatment strategies by considering the interplay between skeletal, dental, and functional components.