ABSTRACT
Magnesium ions are incorporated into fluoridated hydroxyapatite coatings to improve the biological performances. Fluorine ions are incorporated into magnesium-containing hydroxyapatite (HA) coatings to enhance the long-term stability. In this chapter, a bilayer structured magnesium and fluorine ions co-substituted HA coating on Ti6A14V substrate is developed to achieve an integration of short-term osseointegration and long-term stability. The as-formed Sr-substituted biomimetic coatings presented a bone-like structure similar to human bone, which might have a positive effect in enhancing bone formation and contributing to better osseointegration. Since the initial dissolution of the coating is beneficial to the healing process as well as the osseointegration, the dissolution behaviors of different coatings are promising. The adhesion strength between the coating and the substrate is measured by the pull-off test. To resemble bone mineral in composition, various cations and anions are incorporated into HA or HA coatings.
