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Related Experiment Videos

Skeletal asymmetry in esthetically pleasing faces.

S Peck1, L Peck, M Kataja

  • 1Department of Orthodontics, Harvard School of Dental Medicine, Boston, Mass.

The Angle Orthodontist
|January 1, 1991
PubMed
Summary

Facial skeletal asymmetry is common in well-balanced adults, with less asymmetry observed in the upper face. This cephalometric analysis reveals subtle, statistically insignificant right-side dominance in facial structures.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Anthropology

Background:

  • Facial symmetry is a key aesthetic and functional parameter.
  • Skeletal asymmetry can impact facial aesthetics and occlusal relationships.
  • Cephalometric analysis provides quantitative data on craniofacial structures.

Purpose of the Study:

  • To quantify skeletal asymmetry in the frontal facial region of well-balanced adults.
  • To investigate the relationship between facial asymmetry and anatomical location.
  • To determine the prevalence and direction of facial asymmetry.

Main Methods:

  • Utilized posteroanterior (PA) cephalometric radiography on 52 white adults.
  • Constructed three frontal facial lines using bilateral skeletal landmarks: latero-superior orbit (LO), lateral zygoma (Zyg), and gonion (Go).
  • Analyzed measurements for skeletal asymmetry and dimensional stability.

Main Results:

  • All subjects exhibited measurable skeletal asymmetries.
  • Asymmetry decreased, and dimensional stability increased towards the cranium.
  • A minor, non-statistically significant tendency for right-side dominance was noted.

Conclusions:

  • Facial skeletal asymmetry is a prevalent finding even in aesthetically balanced individuals.
  • Craniofacial structures demonstrate a gradient of asymmetry, with greater stability in superior regions.
  • The findings contribute to understanding normal variations in facial skeletal morphology.

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