Synergistic
Effects of Surface Chemistry and Topologic
Structure from Modified Microarc Oxidation Coatings on Ti Implants
for Improving Osseointegration
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Abstract
Microarc
oxidation (MAO) coating containing Ca, P, Si, and Na elements
on a titanium (Ti) implant has been steam-hydrothermally treated and
further mediated by post-heat treatment to overcome the compromised
bone-implant integration. The bone regeneration, bone-implant contact,
and biomechanical push-out force of the modified Ti implants are discussed
thoroughly in this work. The best <i>in vivo</i> performances
for the steam-hydrothermally treated one is attributed to the synergistic
effects of surface chemistry and topologic structure. Through post-heat
treatment, we can decouple the effects of surface chemistry and the
nanoscale topologic structure easily. Attributed to the excellent <i>in vivo</i> performance of the surface-modified Ti implant,
the steam-hydrothermal treatment could be a promising strategy to
improve the osseointegration of the MAO coating covered Ti implant