Evaluation of surface modification techniques on the ability of apatite formation and corrosion behavior in synthetic body fluid: An in vitro study

Electrochemical Surface Biofunctionalization of Titanium through Growth of TiO2 Nanotubes and Deposition of Zn Doped Hydroxyapatite

“…The main roughness parameters and profile line specific to each surface are presented in Figure 5. By comparing the average roughness (Ra) of the Ti with that of the NT, it can be noted that roughness has increased, reaching a value of ~130 nm due to the presence of the nanotubes, which is in good agreement with other studies [49].…”

“…The inner diameter before and after annealing was measured and highlighted that the diameter of the NT presents a small decrement from 75 (±5 nm), obtained for the as-anodized one, compared to 70 (±7 nm) for the annealed ones. Compared to our previous study [49], it can be said that by reducing the anodization time from 1 h to 0.5 h, the diameter has decreased from an average value of 75 nm to 70 nm, and the nanotubes appear to be better organized in terms of density (with smaller spaces between them). The obtained results are in strong correlation with the available literature [50,51].…”

“…In Figure 2 are presented the SEM images obtained on the undoped and zinc doped HAp based coatings, electrochemically deposited on the TiO2 nanostructured surface Compared to our previous study [49], it can be said that by reducing the anodization time from 1 h to 0.5 h, the diameter has decreased from an average value of 75 nm to 70 nm, and the nanotubes appear to be better organized in terms of density (with smaller spaces between them). The obtained results are in strong correlation with the available literature [50,51].…”

Materials and manufacturing techniques trends in prosthetic dentistry.

“…Thus, the highest weight gain of apatite was found for the surfaces modified with TiO2-NT. All the aforementioned were observed for the anodized surfaces, with poorer results being noted for the group which was exposed to airborne particle abrasion [18].…”

“…To increase the apatite formation ability of titanium (cp-Ti), well-known for its superior biocompatibility and excellent corrosion resistance, C. M. Cotrut et al [18] evaluated the influence of different surface morphologies obtained by mechanical (grinding and polishing prepared (M) and airborne-particle abrasion also known as sandblasting (S)) and chemical (anodic oxidation (A)) surface modification techniques, on the biomineralization capacity and corrosion behavior. The obtained surface morphologies were as follows: (i) the grinded and polished materials present a smooth surface with some minor scratches; (ii) the surfaces prepared by airborne-particle abrasion reveal an irregular morphology with signs of plastic deformations; (iii) the surface that suffers the anodic oxidation treatment reveal a morphology consisting in aligned TiO2 nanotubes (NT), vertically oriented, hollow, that can also be described as parallel tubular structures, uniformly distributed on the surface.…”