Coated stainless steel permanent implants with bioactive surface: Bone quality as success parameter

J. BALLARRE; M. DESIMONE; M. R. KATUNAR; M. BACA; JUAN CARLOS ORELLANO; SILVIA CERÉ

BONE

ELSEVIER SCIENCE INC

Lugar: Amsterdam; Año: 2015 vol. 71 p. 258 - 258

8756-3282

Surface modification of surgical stainless steel implants by sol gel coatings has been proposed as a tool to generate a surface that besides being protective could also create a ?bioactive? interface to generate a natural bonding between the metal surface and the existing bone. The aim of this work is to analyze the quality and bone formation around hybrid bioactive coatings containing glass?ceramic particles, made by sol?gel on 316L stainless steel used as permanent implant in terms of mineralization, calcium content and bone maturity with micro Raman, X-ray microfluorescence and X-ray absorption techniques. Uncoated implants seem to generate a thin bone layer at the beginning of oseointegrationprocess and then this layer being separated from the surface with time. The hybrid coatings without glass-ceramic particles generate new bone around implants, with high concentration of Ca and P at the implant/tissue interface. This fact seems to be related with the presence of silica nanoparticles in the layer. The addition of bioactive particles promotes and enhances the bone quality with a homogeneous Ca and P content and a low rate of beta carbonate substitution and crystallinity, related with a young and mechanical resistant bone.