Abstract
Different surfaces were obtained by Plasma Electrolytic Oxidation (PEO) of the Ti–6Al–4V alloy; followed by hydrothermal treatment (HT). The surfaces were studied by scanning electron microscopy (SEM); Energy Dispersive Spectroscopy (EDS); X-ray Diffraction (XRD); Brunauer–Emmett–Teller (BET) absorption and abrasion wear tests. The resulting surface contains hydroxyapatite (HA); which contributes to superior implant osseointegration. Treated implants were introduced into rabbits and their osseointegration was studied after two and six months. It was established that implant surface area increases due to pore formation. Pore formation and hydroxyapatite on the surface of the implant qualitatively change contact osseogenesis processes with reduced duration of osseointegration of implants. The treatment of the surface of the implants by the combination of PEO and HT provided better results in the medico-biological investigations than PEO alone. Abrasion tests demonstrated that the HA will be preserved after the procedure of implantation; ensuring effective osseointegration.
Highlights
The effectiveness of dental implantation and the long-term functioning of intraosseous implants are largely determined by integration conditions
To improve the effectiveness of the osseointegration of titanium implants, we developed a technology involving the use of an intermediary material with sufficiently high adhesion to both metal and bone tissue
X-ray powder amorphous layer ofamorphous titanium dioxide using plasma electrolytic oxidation method, morphology of this surface scarcely depends on the treatment time
Summary
The effectiveness of dental implantation and the long-term functioning of intraosseous implants are largely determined by integration conditions. The employment of a hydroxyapatite coating provides a significant increase in the contact area between implant and bone, producing noticeable improvement in short-range viability indices as compared to “clean” titanium implants [3]. It has been shown that coating the surface of titanium implants with a layer of hydroxyapatite [4] increases the rate of adaptation of bone tissue to the implants, guarantees sufficient initial fixation rigidity of the implanted structures, and stimulates growth of mature bone tissue along with improvement of its quantitative and qualitative indicators. To improve quality and long-term effectiveness of dental implantation in bone tissue of type D4, researchers recommend using implants with an osteoinductive. We will compare the effectiveness of osseointegration of dental implants on whose surfaces hydroxyapatite (HA) layers were produced by several combinations of Plasma Electrolytic Oxidation followed by a hydrothermal treatment
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