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Related Experiment Videos

Mandibular augmentation with hydroxyapatite.

O R Beirne, T A Curtis, J S Greenspan

    The Journal of Prosthetic Dentistry
    |March 1, 1986
    PubMed
    Summary
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    Hydroxyapatite mandibular augmentation shows biocompatibility and improves denture retention. However, lip paresthesia and material migration are concerns, necessitating surgical technique adjustments and improved confinement methods.

    Area of Science:

    • Biomaterials Science
    • Oral and Maxillofacial Surgery
    • Regenerative Medicine

    Background:

    • Mandibular hypoplasia and atrophy can compromise denture stability and facial aesthetics.
    • Hydroxyapatite (HA) has been explored as a bone graft substitute for augmentation.
    • Understanding the biocompatibility and long-term behavior of HA in vivo is crucial.

    Purpose of the Study:

    • To evaluate the clinical success of hydroxyapatite for mandibular augmentation.
    • To assess the histologic tissue response surrounding implanted hydroxyapatite.
    • To investigate the potential of collagen as a binder for hydroxyapatite particles.

    Main Methods:

    • Nine patients underwent mandibular augmentation using hydroxyapatite.
    • Histologic analysis was performed on tissue samples around the implant material.

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  • The effect of collagen on hydroxyapatite particle localization was examined.

    • Main Results:

    • Hydroxyapatite demonstrated biocompatibility with minimal inflammatory response.
    • Significant improvement in denture retention was observed post-augmentation.
    • A notable incidence of lip paresthesia and hydroxyapatite migration occurred.
    • Collagen showed potential as a binder to confine hydroxyapatite particles.

    Conclusions:

    • Hydroxyapatite is a viable material for mandibular augmentation, enhancing denture retention.
    • Surgical technique modifications may mitigate risks like lip paresthesia.
    • Further research is needed to optimize HA placement and develop effective confinement strategies.