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Articulation before and after facial osteotomy.

M A Witzel, R B Ross, I R Munro

    Journal of Maxillofacial Surgery
    |August 1, 1980
    PubMed
    Summary
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    Facial osteotomies significantly improved dental occlusion and articulation in patients with occlusal defects. Pre-surgery prognathia correlated with articulation issues, while post-surgery retrognathia related to occlusion improvements.

    Area of Science:

    • Oral and Maxillofacial Surgery
    • Orthodontics
    • Biomedical Engineering

    Background:

    • Occlusal defects can significantly impact dental articulation and patient quality of life.
    • Facial skeletal discrepancies often necessitate surgical intervention, such as osteotomies, for correction.
    • Understanding the relationship between skeletal patterns and functional outcomes is crucial for treatment planning.

    Purpose of the Study:

    • To evaluate the effect of facial osteotomies on dental occlusion and articulation.
    • To investigate the correlation between specific occlusal defects (prognathia, retrognathia) and articulation/occlusion outcomes post-surgery.

    Main Methods:

    • Retrospective analysis of 41 patients undergoing facial osteotomies for occlusal defect correction.
    • Assessment of dental occlusion and articulation parameters before and after surgical intervention.

    Related Experiment Videos

  • Correlation analysis to determine relationships between skeletal patterns and functional improvements.

    • Main Results:

    • Significant improvements in both dental occlusion and articulation were observed post-surgery.
    • A direct relationship was found between the degree of prognathia and articulation defect severity pre-surgery.
    • In patients with retrognathia, a direct relationship existed between decreased occlusion defect and surgical outcome post-surgery.

    Conclusions:

    • Facial osteotomies are effective in correcting occlusal defects, leading to improved dental occlusion and articulation.
    • Pre-operative prognathia severity predicts articulation defect severity, guiding surgical planning.
    • Post-operative outcomes in retrognathia cases are linked to the reduction in occlusion defects, highlighting the importance of precise skeletal correction.