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Adolescent growth changes in soft tissue profile

B Prahl-Andersen1, A S Ligthelm-Bakker, E Wattel

  • 1Department of Orthodontics, Academic Centre Dentistry, Amsterdam, The Netherlands.

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|May 1, 1995
PubMed
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Facial growth in boys and girls was analyzed from ages 9-14, with final measurements at 22. Differences in lip, nose, and chin growth patterns were identified between sexes.

Area of Science:

  • Human growth and development
  • Craniofacial biology
  • Anthropology

Background:

  • Understanding facial growth patterns is crucial in orthodontics and pediatric dentistry.
  • Previous studies have explored adolescent facial growth, but detailed sex-specific analyses are valuable.

Purpose of the Study:

  • To investigate and compare the growth trajectories of the lips, nose, and chin in adolescent males and females.
  • To identify sex-based differences in craniofacial development during a critical growth period.

Main Methods:

  • Utilized a mixed longitudinal sample of 82 subjects from the Nijmegen Growth Study.
  • Collected data across an age range of 9 to 14 years, with a final measurement at 22 years.
  • Employed mean cumulative growth curves, mean growth velocity curves, and contour plots for analysis.

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Main Results:

  • Distinct growth patterns for the lips, nose, and chin were observed between boys and girls.
  • Growth velocity curves highlighted specific periods of accelerated and decelerated growth differing by sex.
  • Contour plots provided a visual representation of the spatial and temporal differences in facial growth.

Conclusions:

  • Significant sex-based dimorphism exists in the growth of the lips, nose, and chin during adolescence.
  • These findings contribute to a better understanding of craniofacial development and can inform clinical interventions.