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Related Experiment Videos

Angular asymmetries of the human face.

S Namano1, D A Behrend, J K Harcourt

  • 1School of Dental Science, University of Melbourne, Victoria, Australia.

The International Journal of Prosthodontics
|February 24, 2001
PubMed
Summary

Facial asymmetry can be measured using digital imaging and computer analysis. This is crucial for prosthodontic restorations, as common occlusal plane guidelines may not yield ideal esthetics due to natural facial variations.

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Area of Science:

  • Dentistry
  • Prosthodontics
  • Facial analysis

Background:

  • Esthetic prosthodontic restorations depend on an acceptable occlusal plane.
  • Facial asymmetry is common and can impact treatment planning.
  • Standard prosthodontic guidelines for occlusal plane determination may not suit all patients.

Purpose of the Study:

  • To develop and evaluate a method for measuring facial angular asymmetry.
  • To assess the influence of facial asymmetry on prosthodontic treatment planning.
  • To investigate the validity of traditional occlusal plane references.

Main Methods:

  • Standardized digital frontal facial images of 100 subjects were captured.
  • Computer analysis was used to measure angles between facial landmarks and the horizontal.

Related Experiment Videos

  • Subjects were analyzed based on sex, age, and treatment history.

    • Main Results:

    • No statistically significant differences in measured asymmetry were found between different subject groups.
    • The study demonstrated that facial asymmetry is measurable using digital imaging and computer analysis.

    Conclusions:

    • Facial asymmetry can be quantified, influencing the selection of the occlusal plane in prosthodontics.
    • Relying solely on the ala-tragus or interpupillary lines for occlusal plane determination may compromise esthetics.
    • Individualized assessment of facial asymmetry is recommended for optimal prosthodontic outcomes.