INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Coated stainless steel permanent implants with bioactive surface: Bone quality as success parameter?
Autor/es:
J. BALLARRE; M. DESIMONE; M.R. KATUNAR; M,BACA; J.C ORELLANO; S.M.CERE
Reunión:
Congreso; 30ª Reunión Anual de la Asociación Argentina de Osteología y Metabolismo Mineral; 2015
Resumen:
Surface modification of surgical stainless steel implants by sol gel coatings has beenproposed 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 theexisting bone. The aim of this work is to analyze the quality and bone formation aroundhybrid bioactive coatings containing glass?ceramic particles, made by sol?gel on 316Lstainless steel used as permanent implant in terms of mineralization, calcium content andbone 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 coatingswithout glass-ceramic particles generate new bone around implants, with high concentrationof Ca and P at the implant/tissue interface. This fact seems to be related with thepresence of silica nanoparticles in the layer. The addition of bioactive particles promotes andenhances the bone quality with a homogeneous Ca and P content and a low rate of betacarbonate substitution and crystallinity, related with a young and mechanical resistant bone