Stability Range of Ti-Zr Alloy for Dental Implants

Suárez, Néstor R. Florido; Hulka, Iosif; Rosca, Julia Claudia Mirza; Săceleanu, Adriana

doi:10.1017/s1431927622004433

Cited by 2 publications

(3 citation statements)

References 7 publications

(6 reference statements)

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“…One can see that the passive film has a porous microstructure (Figure 8a) that is suitable for osteoinduction. The EDS spectra (Figure 8b) and quantification (Figure 5c) show the presence of increased oxygen content which, according to the quantification, is about four times higher compared to the samples investigated before the electrochemical tests [23]. Altogether, these prove with the EIS results that the passive film formed on the sample's surface is an oxide layer, which enhances the corrosion resistance of the alloy.…”

Section: Scanning Electron Microscopy Observations After Corrosion Testssupporting

confidence: 56%

“…The influence of Zr concentration on Ti-xZr alloys (x = 5%, 10%, 15%) was studied and it was concluded that the alloy presents no cytotoxic effect on osteoblastic cells [20], confirming its safe use for medical devices [21,22]. The authors of the present work also investigated the electrochemical behavior of the Ti-Zr alloy in Ringer's solution, and it was found that the alloy has a superior corrosion resistance compared to cpTp [23]. Furthermore, Zr addition results in microstructural refinement without a significant reduction in ductility [24].…”

Section: Introductionmentioning

confidence: 60%

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Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Hulka,

Uțu,

Brito-Garcia

et al. 2024

Crystals

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In response to concerns of potential cytotoxicity and adverse tissue reactions caused by vanadium and aluminum in the currently used biomaterial Ti-6Al-4V, the Ti–20Zr alloy was evaluated in this study because it has been suggested as a candidate for human body implant material. The Ti-20Zr alloy was obtained by vacuum-melting, followed by heat treatment at 1000 °C for 1 h, and then air-cooled. Optical and scanning electron microscopy revealed that the sample had an α and β lamellar microstructure. Analysis showed that the mechanical properties, in terms of hardness measurements performed at low loads, were significantly different between the two phases. Thus, it was found out that the α phase is softer by about 30% compared to the β phase. The Electrochemical Impedance Spectroscopy technique (EIS) was employed to study the electrochemical behavior in simulated body fluid (SBF). The electrochemical behavior demonstrated that Ti-20Zr alloy exhibits excellent corrosion resistance due to the stable oxide layer formed on its surface. SEM and EDS investigations showed that the surface topography, after electrochemical studies, is characterized by a porous film with increased oxygen content, which might be suitable for the osteoinductive growth of bone.

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Section: Scanning Electron Microscopy Observations After Corrosion Testssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 60%

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Hulka,

Uțu,

Brito-Garcia

et al. 2024

Crystals

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“…Molybdenum is a beta-stabilizing element with low toxicity and can help adjust the alloy's mechanical properties to be more similar to human bone by decreasing the modulus of elasticity. Zirconium, a neutral stabilizer, is becoming increasingly desirable for medical applications due to its biocompatibility, low modulus of elasticity, and corrosion resistance [23].…”

Section: Introductionmentioning

confidence: 99%

Effect of Si Contents on the Properties of Ti15Mo7ZrxSi Alloys

et al. 2023

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The main purpose of this research is to evaluate the mechanical characteristics and biocompatibility of two novel titanium alloys, Ti15Mo7ZrxSi (x = 0, 0.5, 0.75, 1). These samples had already undergone grinding, polishing, cutting, and chipping. Electrochemical, metallographic, three-point bending, and microhardness studies were conducted on the studied materials to determine their corrosion behavior, microstructure, Young’s modulus, and hardness. The first investigations revealed that both samples had biphasic and dendritic structures, elastic moduli that were between the highest and minimum values achieved by around 20 GPa, and favorable behavior when in contact with physiological fluids at ambient temperature. Ti15Mo7Zr0.5Si and Ti15Mo7Zr0.75Si, the research samples, had greater corrosion potentials, reduced corrosion rates, and therefore higher corrosion resistance, as well as modulus of elasticity values that were comparable to and closer to those of human bone. The results of this investigation indicate that both alloys exhibit favorable corrosion behavior, great biocompatibility, Young’s modulus results lower than those of conventional alloys used in biomedical implants, and hardness values higher than commercially pure titanium.

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Stability Range of Ti-Zr Alloy for Dental Implants

Cited by 2 publications

References 7 publications

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Electrochemical Study and Mechanical Properties of Ti-Zr Alloy for Biomedical Applications

Effect of Si Contents on the Properties of Ti15Mo7ZrxSi Alloys

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