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Granules of osteopatite and glass-reinforced hydroxyapatite implanted in rabbit tibiae

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Abstract

Granules of a modified hydroxyapatite, glass-reinforced hydroxyapatite composite and commercial hydroxyapatite were implanted in rabbit tibiae. Histological studies were carried out after 1 and 2 months implantation periods using light and fluorescence microscopy. A much higher percentage of bone contact was developed for both the glass-reinforced hydroxyapatite composite and the modified hydroxyapatite when compared to commercial hydroxyapatite (89–91% versus 66%) after 2 months implantation. The mechanism of bone formation and growth around implants is discussed in terms of the influence of elements incorporated into these novel materials which are commonly found in bone tissues, such as Na, K and Mg, and the presence of a soluble β-tricalcium phosphate phase in the microstructure of the composite.

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Authors and Affiliations

  1. Faculty of Dental Medicine, University of Porto, Rua Dr. Roberto Frias, 4200, Porto, Portugal

    A. Afonso, M. Vasconcelos & R. Branco

  2. INEB-Institute for Biomedical Engineering, Praça do Coronel Pacheco 1, 4000, Porto, Portugal

    J. D. Santos & J. Cavalheiro

  3. Department of Metallurgical Engineering, Faculty of Engineering of University of Porto (FEUP), Rua dos Bragas, 4099, Porto Codex, Portugal

    A. Afonso, J. D. Santos, M. Vasconcelos, R. Branco & J. Cavalheiro

Authors
  1. A. Afonso
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  2. J. D. Santos
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  3. M. Vasconcelos
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  4. R. Branco
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  5. J. Cavalheiro
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Additional information

This paper was accepted for publication after the 1995 Conference of the European Society of Biomaterials, Oporto, Portugal, 10–13 September.

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Afonso, A., Santos, J.D., Vasconcelos, M. et al. Granules of osteopatite and glass-reinforced hydroxyapatite implanted in rabbit tibiae. J Mater Sci: Mater Med 7, 507–510 (1996). https://doi.org/10.1007/BF00705433

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  • DOI: https://doi.org/10.1007/BF00705433

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