Light microscopic and scanning electron microscopic retrieval analyses of implanted biomaterials retrieved from humans and experimental animals

The Journal of Oral Implantology
D E SteflikM McDaniel

Abstract

This paper reports analysis obtained from 200 implant cases retrieved from humans and submitted to the American Academy of Implant Dentistry Research Foundation, Medical College of Georgia implant retrieval center. The samples that were not decalcified were embedded in polymethylmethacrylate and examined with scanning electron microscopy and routine light, polarized, or Nomarski microscopy. Cases included both orthopedic and dental implants, as well as entire mandibles and portions of maxillae obtained at autopsy. A significant number of submitted implants had substantial amounts of adhered bone, which permitted evaluation of human bone remodeling to osseointegrated implants. These implants failed because of implant fracture. As was observed with animal studies, healthy bone supported these implants, with the bone containing an interdigitating canaliculi network that provided communication between interfacial osteocytes and osteocytes deeper within the remodeled osteonal and trabecular bone. Early dental implants containing a coating of beads showed a connective tissue interface, which corresponded to the bead surface of specific orthopedic implants that underwent some degree of micromovement. This is in contrast with the excel...Continue Reading

Citations

Nov 19, 2003·Journal of Biomedical Materials Research. Part a·Rachel L PriceThomas J Webster
Mar 18, 2016·Ultrastructural Pathology·Emil S Pais, Dragos Slavescu
Sep 17, 2004·Biomaterials·Thomas J WebsterRachel L Price
Aug 25, 2005·Clinical Oral Implants Research·Pia K BolindTomas O Albrektsson
Aug 30, 2011·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·A P KoistinenR Lappalainen

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