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Advances in the ultrastructural study of the implant–bone interface by backscattered electron imaging.

AuthorsWierzchos, Jacek ; Falcioni, T.; Kiciak, A.; Wolin´ski, J.; Koczorowski, R.; Chomicki, P.; Porembska, M.; Ascaso, Carmen
KeywordsAnimal study
Bone cells
Bone formation
Issue DateJan-2008
CitationMicron 39 (2008) 1363–1370
AbstractThe biocompatibility of titanium implants in bone depends on the response shown by cells in contact with the implant surface. Several developments have been targeted at achieving successful implant treatment. The aim of this study was to develop a novel preparation procedure to evaluate the bone cell response produced at the bone–implant interface using the technique scanning electron microscopy with backscattered electron imaging (SEM-BSE). Dental prostheses with an SLA-modified or TOP-modified surface were implanted in a toothless part of the mandibula in female pigs. The animals were sacrificed 12 weeks after surgery, at which time block specimens containing the implants were obtained. These specimens were then processed for SEM-BSE by optimizing a protocol involving chemical fixation and heavy metal staining. In addition, element distribution maps for the implant–bone tissue interface were obtained using a microanalytical system based on energy-dispersive X-ray spectrometry (EDS). This novel visualisation approach enabled a comprehensive study of the extracellular matrix and cell components of the host tissues neoformed around the implant. SEM-BSE images also provided ultrastructural details of the bone cells. This technique appears to be an effective and very promising tool for detailed studies on the implant–bone tissue interface and the host response to the bone incorporation process
Description8 p. 3 con fotos
Publisher version (URL)http://dx.doi.org/10.1016/j.micron.2008.01.022
Appears in Collections:(IRN) Artículos
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