The biological response to three different nanostructures applied on smooth implant surfaces

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The biological response to three different nanostructures applied on smooth implant surfaces

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Publication Article, peer reviewed scientific
Title The biological response to three different nanostructures applied on smooth implant surfaces
Author(s) Jimbo, Ryo ; Sotres, Javier ; Johansson, Carina ; Breding, Karin ; Currie, Fredrik ; Wennerberg, Ann
Date 2012
English abstract
Objective: To evaluate the biological effects of three calcium phosphate (CaP) coatings with nanostructures on relatively smooth implant surfaces. Material and methods: Stable CaP nanoparticle suspensions of different particle sizes and structures were coated onto implants by immersion and subsequent heat treatment. An uncoated implant was used as the control. After topographical and chemical characterizations, implants were randomly inserted into rabbit tibiae for removal torque (RTQ) testing. To confirm the biological reaction, implants were placed in the bilateral femurs of three rabbits. Results: The topographical characterization showed that each surface had different nanostructural characteristics and X-ray photon spectroscopy showed various CaP compositions. The control and test groups had different nanotopographies; however, the differences among the test groups were only significant for Surfaces B and C and the rest were insignificant. The RTQ tests showed significantly higher values in two test groups (Surface A and Surface C). Histologically, no adverse effects were seen in any group. Histomorphometrical evaluation showed comparable or better osseointegration along the implant threads in the test groups. Conclusion: The three different CaP coatings with nanostructures on the implant surfaces had enhancing effects on osseointegration. Along with the surface nanotopography, the CaP chemistry might have influenced the biological outcomes.
DOI http://dx.doi.org/10.1111/j.1600-0501.2011.02182.x (link to publisher's fulltext)
Publisher John Wiley and Sons
Host/Issue Clinical Oral Implants Research;6
Volume 23
ISSN 1600-0501
Pages 706-712
Language eng (iso)
Subject(s) animal experiments
biomaterials
bone implant interactions
surface chemistry
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/13929 (link to this page)

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