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Cervical vertebral bone age in girls.

Toshinori Mito1, Koshi Sato, Hideo Mitani

  • 1Division of Orthodontics, Department of Lifelong Oral Health Science, Graduate School of Dentistry, Tohoku University, Sendai, Japan. mito@mail.cc.tohoku.ac.jp

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|November 2, 2002
PubMed
Summary

Cervical vertebral bone age offers a new, objective method for assessing skeletal maturity from cephalometric radiographs. This novel index closely approximates established bone age assessments, improving evaluation accuracy.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Radiology

Background:

  • Skeletal maturation assessment is crucial in orthodontics.
  • Current methods like hand-wrist radiographs are effective but require separate imaging.
  • Cephalometric radiographs are routinely used, offering potential for integrated skeletal age assessment.

Purpose of the Study:

  • To establish cervical vertebral bone age as a novel, objective index for skeletal maturation evaluation.
  • To correlate cervical vertebral bone age with established bone age methods using cephalometric radiographs.
  • To assess the reliability of cervical vertebral bone age for detailed maturity assessment.

Main Methods:

  • Development of a regression formula for cervical vertebral bone age using measurements from third and fourth cervical vertebral bodies on cephalometric radiographs.

Related Experiment Videos

  • Validation of the method using cephalometric and hand-wrist radiographs from 66 girls.
  • Correlation analysis between cervical vertebral bone age, chronological age, and Tanner-Whitehouse 2 bone age.

    • Main Results:

    • A regression formula was successfully derived for cervical vertebral bone age.
    • Cervical vertebral bone age showed a significantly higher correlation with bone age (0.869) compared to chronological age (0.705).
    • The difference between cervical vertebral bone age and bone age (0.75 years) was significantly smaller than with chronological age (1.17 years).

    Conclusions:

    • Cervical vertebral bone age effectively reflects skeletal maturity, closely approximating established bone age.
    • This method provides a reliable and objective means of evaluating skeletal maturation directly from cephalometric radiographs.
    • Cervical vertebral bone age has potential for detailed and objective maturity assessment in clinical practice.