Abstract
Titanium has a good ability to attach to bone and living tissue, making it a perfect material for orthopedic implants. Because of the combination of high resistance to corrosion, biocompatibility and excellent mechanical properties. This work aims to study the Modifications of various base titanium implant samples producing by using powder technology (Ti-pure, Ti-45 % Ni, Ti10 % Co, and Ti-30 % Ta) by deposition of Nano Zirconia and yttria powders (70 % and 30% ). Chemical pretreatment carried out to prepare the implant surface before deposition, while the deposition process accomplished by pack cementation. The Characterizations of samples accomplished before and after the surface treatment, which includes: microstructure observation, x-ray diffraction (XRD), MTT Assay (cell viability) and MTT assay (cell adhesion). From the SEM All samples Show that Nano Zirconia and yttria were homogeneously put on the surface and fully covered it which resulted in a substantial modification in surface morphologies. From XRD patterns the peaks slightly shifted to the low angle side also amorphous behavior was observed. From MTT graphs it was found that the titanium alloys surface after pack cementation became more active after 3 days of exposure in MG-63 cells and there was a remarkable increase in cell viability and cell attachment compared with untreated samples.
Highlights
Titanium and its alloy are Lightweight, Strong, Corrosion Resistant, Non-toxic, Cost-efficient, Long-lasting, non-ferromagnetic, Biocompatible, Osseointegrated, Long-range availability, Flexibility and elasticity are comparable with that of human bone
From MTT graphs it was found that the titanium alloys surface after pack cementation became more active after 3 days of exposure in MG-63 cells and there was a remarkable increase in cell viability and cell attachment compared with untreated samples
Notice after the samples were deposited by Nano Zirconia and yttria using pack cementation that the surface morphology changes completely and have a new surface layer form on the samples and the deposition layer that was observed in nm scale as shown in Figures 6, 8, 10, and 12 proved that the Nanoceramic deposition layer is produced on the surface of the implant
Summary
Titanium and its alloy are Lightweight, Strong, Corrosion Resistant, Non-toxic, Cost-efficient, Long-lasting, non-ferromagnetic, Biocompatible (not toxically and not dismissed by the body), Osseointegrated (the connection of bone with the implant), Long-range availability, Flexibility and elasticity are comparable with that of human bone. The Ti-Co device alloys are of both scientific and technical importance, Due to their possible uses as biomedical materials, in particular for hard tissue replacement HTR such as teeth and skeletons, Because of its higher body fluid resistance and biocompatibility, cobalt has been used in medical implant alloy in dentistry and medicine during many years, the addition of cobalt improves the corrosion resistance of titanium, and its mechanical properties [5]. Efficient metallic oxide dopant has different metallic oxide, including (MgO, CaO or ) by combining Zirconia with relatively small quantities of another metallic oxide, referred to as dopand [10] They have been commonly studied because of the desirable properties of nanoparticles due to their useful surface area. In contrast with the bulk (YSZ), the (n-YSZ) method exhibits dissimilar behavior [11]
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