The effect of hydroxyapatite nanocrystals on early bone formation surrounding dental implants

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The effect of hydroxyapatite nanocrystals on early bone formation surrounding dental implants

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Publication Article, peer reviewed scientific
Title The effect of hydroxyapatite nanocrystals on early bone formation surrounding dental implants
Author(s) Melin Svanborg, Lory ; Hoffman, Maria ; Andersson, Martin ; Currie, Fredrik ; Kjellin, Per ; Wennerberg, Ann
Date 2011
English abstract
The knowledge of how nanostructures might affect early bone healing and osseointegration is limited. The aim of this study was to investigate if nanometer thick coatings of hydroxyapatite nanocrystals applied on a moderately rough surface might enhance early bone healing on screw-shaped dental implants and to evaluate if the thickness of the coat influences healing. Sandblasted and acid etched titanium implants coated with two different thicknesses of hydroxyapatite (test implants) and sandblasted and acid etched titanium implants (control implants), were inserted in rabbit tibia. After a healing time of 2, 4 and 9 weeks, a removal torque analysis and a histological evaluation were performed. The results from the removal torque analysis showed a tendency for higher values for the double coated hydroxyapatite after 4 weeks and for both the coated surfaces after 9 weeks of healing. The histological evaluations indicated slightly more new bone formation with the coated implants compared with the control; the differences did not reach statistical significance. The present study could not support the importance of nanometer thick coatings of hydroxyapatite nanocrystals in early bone healing, at least not when applied on a blasted and etched surface and placed in a cortical bone.
DOI http://dx.doi.org/10.1016/j.ijom.2010.10.010 (link to publisher's fulltext)
Host/Issue International Journal of Oral Maxillofacial Surgery;3
Volume 40
ISSN 1399-0020
Pages 308-315
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY::Oral prosthetics
Handle http://hdl.handle.net/2043/11231 (link to this page)

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