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Facial asymmetry: type, extent and range of normal values
1Faculty of Natural Sciences, Charles University, Prague, Czech Republic.
Acta Chirurgiae Plasticae
|January 1, 1993
Summary
Facial asymmetry in children aged 6-18 years shows no sex or age differences. Normal asymmetry for facial dimensions ranges from 4-5 mm, aiding in medical assessments.
Area of Science:
- Anthropometry
- Human anatomy
- Pediatric research
Background:
- Facial asymmetry is a common finding in the general population.
- Understanding normal ranges is crucial for identifying clinically significant deviations.
- Previous studies have not comprehensively analyzed asymmetry across a wide pediatric age range.
Purpose of the Study:
- To quantify facial asymmetry in a large cohort of normal children.
- To determine if facial asymmetry varies with sex or age.
- To establish normative data for facial asymmetry.
Main Methods:
- Direct measurement of twelve facial dimensions on both sides of the face.
- Analysis of signed, absolute, and relative facial asymmetry.
- Statistical evaluation of asymmetry in relation to sex and age.
Main Results:
- Facial asymmetry extent is consistent between sexes and does not change with age.
- Asymmetries are typically fluctuating, with a slight right-side predominance.
- The normal range for signed asymmetry in lateral facial dimensions was determined as 4-5 mm.
Conclusions:
- Facial asymmetry in children is generally stable across development and sexes.
- Established normal asymmetry ranges (4-5 mm) can assist in clinical evaluations.
- This data provides a baseline for differentiating normal variations from pathological conditions.