Abstract
The analysis of literature on bioactive surfaces of volume implants and plasma coatings on their surface is made. Influence of the porous sizes on process of growing new bone in an implant surface it is described. The traditional porous structure of a plasma titanic coating is formed due to decrease in extent of deformation of spraying particles on a substrate and it not optimum for growing of a new bone tissue. Modern dense coatings a hydroxyapatite (HA) - the titan have no necessary porous structure, and transfer of cyclic loading through an external layer is not reliable. In too time comparative researches of 17 surfaces of implants at implantation indicate obvious advantages of plasma HA of coatings is not dependent on degree of their crystallinity. Three-dimensional capillary-porous (TCP) titanium coatings in the form of ridges and cavities with additional HA plasma and microplasma coatings are perspective for medical application due to division of dense and porous volumes of a coating, increase in the area of border with a new bone tissue, higher shear and a possibility of spraying of the HA coating with equilibrium structure at a temperature of a surface of titanium at 550 °C. The analysis of HA coating content phase is made depending on the modes of plasma spraying.
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