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Related Experiment Videos

Alveolar bone response to submerged bisphosphonate-complexed hydroxyapatite implants.

H Denissen1, C Montanari, R Martinetti

  • 1Department of Oral Function and Implantology, Academic Center for Dentistry, Amsterdam, The Netherlands.

Journal of Periodontology
|March 11, 2000
PubMed
Summary

Bisphosphonate-complexed hydroxyapatite implants show normal osteoconduction and repair in alveolar bone, integrating effectively as bone replacement material. These modified implants demonstrate potential for enhanced bone maintenance after tooth extraction.

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Area of Science:

  • Biomaterials Science
  • Dental Implantology
  • Bone Regeneration

Background:

  • Hydroxyapatite (HA) implants are used for alveolar bone maintenance post-extraction.
  • Clinical outcomes suggest HA may benefit from biological modification with bone resorption inhibitors.
  • Bisphosphonate-complexed HA implants were investigated for improved osteoconduction and repair.

Purpose of the Study:

  • To evaluate the efficacy of bisphosphonate-complexed hydroxyapatite implants in promoting osteoconduction and repair in alveolar bone.
  • To assess the integration and bone replacement capabilities of these modified implants in experimental and clinical settings.

Main Methods:

  • Porous hydroxyapatite implants were incubated with bisphosphonate solution.
  • Goats received plain HA and bisphosphonate/HA implants in mandibular extraction sockets for DEXA analysis.

Related Experiment Videos

  • A clinical study involved placing 23 bisphosphonate/HA implants in human patients for one year.

    • Main Results:

    • Histological analysis showed both HA and bisphosphonate/HA implants integrated well, exhibiting vascularization and osteoconduction.
    • In patients, peri-implant healing was clinically and radiographically comparable to plain HA implants.
    • All implants were retained without complications, with radiographic evidence of bone deposition near implants.

    Conclusions:

    • Bisphosphonate-complexed hydroxyapatite implants function effectively as carriers for bone-modulating bisphosphonate.
    • Normal osteoconduction and repair were observed in alveolar bone surrounding these modified HA implants.