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Physical and biological characterizations of a novel multiphase anodic spark deposition coating to enhance implant osseointegration.

Giordano C, Chiesa R, Sandrini E, Cigada A, Giavaresi G, Fini M, Giardino R

Department of Chemistry, Materials and Chemical Engineering G.Natta', Polytechnic of Milan, Via Mancinelli, 7, Milan, Italy. carmen.giordano@polimi.it

The present study assessed in vitro the short-term cellular response to surface physico-chemical properties of a new, purposed bioactive surface treatment called BioSpark performed on simply machined and on sand-blasted titanium. Material characterisation was carried out using scanning electron microscopy, energy dispersion spectroscopy, laser profilometry, and thin film X-ray diffraction. The in vitro biological study showed a suitable cellular response with adhesion and spreading level comparable for all the tested specimens. The proliferation analysis demonstrated that all the surfaces successfully supported cellular colonisation; in particular, higher cellular proliferation activity was observed on the BioSpark-treated materials, with values higher than machined titanium. The results suggest that the BioSpark treatment represents a smart way to enhance osteoblastic cellular colonisation and thus improve osteointegration processes of machined and sandblasted titanium for orthopaedic and dental implants.

Published 19 December 2005 in J Mater Sci Mater Med, 16(12): 1221-9.
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