Screening on binary Ti alloy with excellent mechanical property and castability for dental prosthesis application

Abstract

In the present study, the microstructure, mechanical property, castability, corrosion behavior and in vitro cytocompatibility of binary Ti–2X alloys with various alloying elements, including Ag, Bi, Ga, Ge, Hf, In, Mo, Nb, Sn and Zr, were systematically investigated, in order to assess their potential applications in dental field. The experimental results showed that all binary Ti‒2X alloys consisted entirely α–Ti phase. The tensile strength and microhardness of Ti were improved by adding alloying elements. The castability of Ti was significantly improved by separately adding 2 wt.% Bi, Ga, Hf, Mo, Nb, Sn and Zr. The corrosion resistance of Ti in both normal artificial saliva solution (AS) and extreme artificial saliva solution (ASFL, AS with 0.2 wt.% NaF and 0.3 wt.% lactic acid) has been improved by separately adding alloying elements. In addition, the extracts of studied Ti‒2X alloys produced no significant deleterious effect to both fibroblasts L929 cells and osteoblast-like MG63 cells, indicating a good in vitro cytocompatibility, at the same level as pure Ti. The combination of enhanced mechanical properties, castability, corrosion behavior, and in vitro cytocompatibility make the developed Ti‒2X alloys have great potential for future stomatological applications.

Bond strength of commercial veneering porcelain to experimental cast Ti-Cr alloy

“…The mechanical properties of Ti alloys are also influenced by adding Cr content because alloying improves the properties depending on their microstructures and phase compositions 29,30) . Both the yield and tensile strengths of the Ti-Cr specimens were approximately twice as high as those of the cp-Ti specimens.…”

The effect of molybdenum on titanium’s castability in dental prosthesis applications: A numerical analysis

“…It is believed that this influences castability positively. Considering the results of the present study, it is concluded that increased Mo ratios improve the castability of Ti. The obtained results are similar to those in the literature, whereby the castability of Ti–Mo alloys has been improved by increased Mo content. 11 …”

“…The obtained results are similar to those in the literature, whereby the castability of Ti–Mo alloys has been improved by increased Mo content. 11…”

“…Alloys must have mechanical strength, castability, corrosion resistance, and biocompatibility to be used in dental applications. 11…”

“…Alloys must have mechanical strength, castability, corrosion resistance, and biocompatibility to be used in dental applications. 11 In the literature, there are various studies on the surface and structural consistency of Mo in biomaterials. Zardiackas et al 12 developed Ti-15Mo alloys and compared their mechanical properties, microstructure, biocompatibility, and corrosion behavior with Ti Grade 4, Ti-6Al-7Nb, Ti-6Al-4V, and 316L stainless steel.…”