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A new look at mandibular growth--a preliminary report
European Journal of Orthodontics
|April 1, 1992
Summary
This study visually represents mandibular growth from age 5 to 20, confirming previous theories on mandibular rotation using cephalometric radiographs. The findings offer insights into the longitudinal development of the lower jaw in adolescents and young adults.
Area of Science:
- Orthodontics and Dental Anthropology
- Human Growth and Development
Background:
- Understanding the longitudinal growth of the mandible is crucial for diagnosing and treating dentofacial abnormalities.
- Previous theories by Björk and Skieller (1983) proposed specific patterns of mandibular rotation during growth.
Purpose of the Study:
- To visually represent and confirm theories on mandibular rotation during longitudinal growth.
- To analyze mandibular growth patterns from childhood to early adulthood.
Main Methods:
- Utilized cephalometric radiographs from 42 subjects (21 males, 21 females) aged 5 to 20 years.
- Employed a digitizer program to generate curved outlines of mandibular growth.
- Created superimposed mean plots at ages 5, 10, 15, and 20 years.
Main Results:
- Mean plots visually confirmed previous theories regarding mandibular rotation.
- Demonstrated a clear visual representation of the processes involved in mandibular growth.
- Longitudinal analysis revealed consistent patterns of mandibular development.
Conclusions:
- The study visually validates established theories on mandibular rotation.
- Provides a comprehensive visual depiction of mandibular growth processes.
- Contributes to the understanding of craniofacial development in humans.