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Related Experiment Videos

Gingival response to orthodontic force.

M Redlich1, S Shoshan, A Palmon

  • 1Department of Orthodontics and Connective Tissue Research Laboratory, University-Hadassah, Faculty of Medicine, Jerusalem 91220, Israel.

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|August 6, 1999
PubMed
Summary
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Orthodontic forces cause gingival tissue changes, unlike bone and ligament. These persistent gingival alterations may explain tooth relapse after orthodontic treatment and retention removal.

Area of Science:

  • Periodontology
  • Orthodontics
  • Biomaterials Science

Background:

  • Orthodontic tooth movement relies on alveolar bone remodeling and periodontal ligament response to mechanical forces.
  • Gingival tissue changes are recognized as crucial but less studied factors in orthodontic responses.
  • Unlike bone and ligament, gingival tissue may not fully recover its structure post-force application.

Purpose of the Study:

  • To review existing data on how orthodontic forces affect gingival collagen, elastin, and collagenase.
  • To explore the link between these gingival changes and the phenomenon of tooth relapse after orthodontic treatment.

Main Methods:

  • Literature review of studies investigating gingival tissue responses to orthodontic forces.
  • Analysis of data concerning collagen, elastin, and collagenase alterations in the gingiva.

Related Experiment Videos

  • Correlation of observed gingival changes with the mechanism of post-retention tooth relapse.

    • Main Results:

    • Orthodontic forces induce significant changes in gingival extracellular matrix components, including collagen and elastin.
    • Alterations in collagenase activity within the gingiva are observed during orthodontic tooth movement.
    • Gingival tissue exhibits persistent structural modifications that differ from the regenerative capacity of bone and periodontal ligament.

    Conclusions:

    • Persistent gingival tissue changes induced by orthodontic forces are a potential contributing factor to post-retention tooth relapse.
    • Understanding these gingival alterations is key to developing strategies to prevent orthodontic relapse.
    • Further research into the specific molecular mechanisms of gingival response to orthodontic forces is warranted.