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Related Experiment Videos

The osteoclast and periodontitis.

J D Sterrett

    Journal of Clinical Periodontology
    |April 1, 1986
    PubMed
    Summary

    Osteoclasts are key to bone loss in periodontitis. Understanding their origin, structure, and activation mechanisms, including how periodontal factors influence them, clarifies osseous destruction.

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    Area of Science:

    • Cell Biology
    • Periodontology
    • Bone Physiology

    Background:

    • Osteoclasts are crucial for bone remodeling and resorption.
    • The variable rate of osseous destruction in periodontitis suggests a significant role for osteoclasts.
    • Understanding osteoclast biology is essential for addressing periodontal bone loss.

    Purpose of the Study:

    • To review current knowledge on osteoclast biology.
    • To explore theories of osteoclast origin and function.
    • To discuss the activation mechanisms of osteoclasts in periodontal disease.

    Main Methods:

    • Literature review of osteoclast origin theories (multipotential osteoprogenitor vs. hemopoietic stem cell).
    • Discussion of osteoclast ultrastructural features (ruffled border, clear zone, lysosomal system).
    • Analysis of bone degradation mechanisms (one-cell vs. two-cell theories) and osteoclast activators.

    Main Results:

    • Two primary theories explain osteoclast origin.
    • Specific ultrastructural features define osteoclast function.
    • Multiple factors, including periodontal pathogens and inflammatory mediators, activate osteoclasts.

    Conclusions:

    • Osteoclast activity is central to periodontal bone destruction.
    • Periodontal lesions contain factors that attract and activate osteoclasts.
    • Further research into osteoclast pathways can inform periodontitis treatment.

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