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Related Experiment Videos

On tooth movement

R J Isaacson1, S J Lindauer, M Davidovitch

  • 1Department of Orthodontics, VCU/MCV School of Dentistry, Richmond 23298-0566.

The Angle Orthodontist
|January 1, 1993
PubMed
Summary
This summary is machine-generated.

Orthodontic tooth movement concepts are misleading. Current orthodontic mechanotherapy does not achieve static translatory movement, challenging traditional views of force levels and movement types.

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Area of Science:

  • Biomedical Engineering
  • Orthodontics
  • Periodontology

Background:

  • Traditional orthodontic concepts describe tooth movement based on force levels and tipping/bodily mechanics.
  • Clinical analysis of tooth movement often overlooks crucial relationships in orthodontic mechanotherapy.
  • In vivo orthodontic trials with undefined conditions lead to variable biological responses.

Purpose of the Study:

  • To reevaluate the relationships between tooth movement and orthodontic mechanotherapy.
  • To address the confusion regarding biological responses to mechanical force in orthodontics.
  • To critically examine the concept of static translatory tooth movement.

Main Methods:

  • Review and reevaluation of existing orthodontic mechanotherapy principles.

Related Experiment Videos

  • Analysis of the dynamic load deflection rates and moment-to-force ratios in tooth movement.
  • Examination of biological responses within the periodontium during orthodontic treatment.

    • Main Results:

    • Current concepts of orthodontic tooth movement are considered misleading.
    • Constantly changing moment-to-force ratios affect crown/root tipping tendencies.
    • Static translatory tooth movement, a didactic concept, is practically unattainable with conventional appliances.

    Conclusions:

    • The accepted notion of static translatory tooth movement is not empirically documented.
    • Variable biological responses in the periodontium contribute to the complexity of orthodontic tooth movement.
    • A revised understanding of orthodontic mechanotherapy is needed to align with empirical evidence.