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Related Experiment Videos

A new method for analyzing change in dental arch form

E A BeGole1, R C Lyew

  • 1University of Illinois at Chicago, College of Dentistry, Department of Orthodontics, 60612-7211, USA.

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, 1998
PubMed
Summary

This study introduces a computerized system using cubic splines to analyze dental arch form changes after orthodontic treatment and relapse. The method provides quantitative indexes and graphics to assess treatment outcomes and long-term stability.

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Area of Science:

  • Orthodontics and Dental Arch Analysis
  • Biomedical Engineering
  • Computerized Quantitative Imaging

Background:

  • Assessing changes in dental arch form following orthodontic treatment is crucial for understanding treatment efficacy and relapse.
  • Traditional methods may lack the precision and quantitative analysis needed for detailed form assessment.
  • Computerized systems offer potential for objective and reproducible analysis of complex dental structures.

Purpose of the Study:

  • To develop and computerize a novel method for analyzing dental arch form changes.
  • To quantify changes resulting from orthodontic treatment and subsequent relapse.
  • To provide visual and numerical assessments of dental arch alterations over time.

Main Methods:

  • Utilized cubic spline functions to model dental arch forms from digitized data.

Related Experiment Videos

  • Collected dental arch data at three time points: pre-treatment, post-treatment, and long-term post-retention.
  • Employed curve fitting evaluation, computation of form changes, and superimposed graphics with quantitative indexes.

    • Main Results:

    • Successfully developed a computerized system for analyzing dental arch form.
    • Generated superimposed graphics and quantitative indexes to illustrate treatment-induced and relapse-related changes.
    • Demonstrated acceptable interjudge and intrajudge reliability for the developed method.

    Conclusions:

    • The computerized cubic spline method provides a reliable and quantitative approach to analyze dental arch form changes.
    • This system aids in visualizing and measuring the impact of orthodontic treatment and relapse.
    • The method offers valuable insights into the stability and outcomes of orthodontic interventions.