Surface characterization of nanostructured commercially pure titanium modified by sandblasting and acid-etching for implant applications

Reshadi, Farshid; Khorasani, S.; Faraji, Ghader

doi:10.1177/1350650119864246

Cited by 10 publications

(3 citation statements)

References 45 publications

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“…In the blasting with ZrO 2 (Figure 5a) and blasting with Al 2 O 3 (Figure 5c) conditions, it can be seen that the sandblasted surface displayed an anisotropic structure of craters, valleys and peaks due to plastic deformation caused by the impact of Al 2 O 3 and ZrO 2 particles, and there may well be some particles embedded in the surface. During the plastic deformation process some materials can be removed from the surface [16]. The SEM images of the surface blasted with Al 2 O 3 (Figure 5c) are identical to the images of the surface blasted with ZrO 2 (Figure 5a).…”

Section: Castingmentioning

confidence: 62%

Effect of Surface Modifications on Surface Roughness of Ti6Al4V Alloy Manufactured by 3D Printing, Casting, and Wrought

et al. 2023

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This work aimed to comprehensively evaluate the influence of different surface modifications on the surface roughness of Ti6Al4V alloys produced by selective laser melting (SLM), casting and wrought. The Ti6Al4V surface was treated using blasting with Al2O3 (70–100 µm) and ZrO2 (50–130 µm) particles, acid etching with 0.017 mol/dm3 hydrofluoric acids (HF) for 120 s, and a combination of blasting and acid etching (SLA). It was found that the optimization of the surface roughness of Ti6Al4V parts produced by SLM differs significantly from those produced by casting or wrought processes. Experimental results showed that Ti6Al4V alloys produced by SLM and blasting with Al2O3 followed by HF etching had a higher surface roughness (Ra = 2.043 µm, Rz = 11.742 µm), whereas cast and wrought Ti6Al4V components had surface roughness values of (Ra = 1.466, Rz = 9.428 m) and (Ra = 0.940, Rz = 7.963 m), respectively. For Ti6Al4V parts blasted with ZrO2 and then etched by HF, the wrought Ti6Al4V parts exhibited higher surface roughness (Ra = 1.631 µm, Rz = 10.953 µm) than the SLM Ti6Al4V parts (Ra = 1.336 µm, Rz = 10.353 µm) and the cast Ti6Al4V parts (Ra = 1.075 µm, Rz = 8.904 µm).

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Section: Castingmentioning

confidence: 62%

Effect of Surface Modifications on Surface Roughness of Ti6Al4V Alloy Manufactured by 3D Printing, Casting, and Wrought

et al. 2023

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“…After that, they were washed with ionized water and degreased with ethanol. 21 As-received, two and four passes ECAP samples after etch treatment was marked as P0, P2, and P4 in this study, respectively.…”

Section: Sample Preparationmentioning

confidence: 99%

Commercially pure titanium modification to enhance corrosion behavior and osteoblast response by ECAP for biomedical applications

Hashemi

Borhani

Nourbakhsh

2022

Journal of Applied Biomaterials & Functional Materials

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When it comes to using bio-metals, the chemical and biocompatibility properties of titanium led to its widespread use in biomedical implants. However, pure titanium possesses lower mechanical properties than Ti alloys containing cytotoxic elements. Severe plastic deformation (SPD) techniques were able to cause a significant strength increase, corrosion behavior improvement, and the release of the alloying elements. In this study, the ECAP process was performed on commercially pure titanium with a square cross-section at two and four passes, which resulted in a finer grain size and a more uniform microstructure. In order to improve cell behaviors, etch treatment was performed to produce nano-rough and nano-texture surfaces for all Ti samples. The effect of surface etching on corrosion, surface roughness, and cell behaviors on ECAP and untreated samples was also investigated. Optical/Field Emission Scanning Electron Microscopy, Atomic Force Microscopy, and X-Ray Diffraction were used to study the microstructural characterizations of samples. In addition, the impact of grain structure on the contact angle, electrochemical corrosion behavior, osteoblast response, and cell viability was investigated. The titanium that was ECAPed four times provided finer grains (200 nm) than the unprocessed sample (25 µm). The potentiodynamic polarization test revealed that corrosion resistance of ECAPed samples was enhanced, which was associated with grain refinement, affecting the passive film formation. Corrosion resistance and wettability experienced an apparent increase after each ECAP pass. In conclusion, improvement of grain size and surface roughness was due to the simultaneous effect of ECAP and etching treatment that led to the osteoblast response and cellular activity of samples.

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“…However, to the best of our knowledge, no studies have documented the simultaneous effect of acid etching on the thread geometry of the Ti6Al4V ELI alloy dental implant product, its surface properties, and cytocompatibility. Moreover, fewer studies have been conducted on the SLA surface of grade 5 titanium alloys, but the effect of the etching parameter has not been discussed with regard to the surface morphology [ 27 , 28 ]. Since the Ti6Al4V ELI alloy is also used for the fabrication of dental implants by various manufacturers and possesses a heterogeneous composition a compared to CP-titanium, SLA surface fabrication on this alloy also needs the optimization of the acid etching process parameters.…”

Section: Introductionmentioning

confidence: 99%

Critical Role of Etching Parameters in the Evolution of Nano Micro SLA Surface on the Ti6Al4V Alloy Dental Implants

2021

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The surface of dental implants plays a vital role in early and more predictable osseointegration. SLA (sandblasted large grit and acid-etched) represents the most widely accepted, long-term clinically proven surface. Primarily, dental implants are manufactured by either commercially pure titanium (CP-Ti) or Ti6Al4V ELI alloy. The acid etch behavior of CP-Ti is well known and its effects on the surface microstructure and physicochemical properties have been studied by various researchers in the past. However, there is a lack of studies showing the effect of acid etching parameters on the Ti6Al4V alloy surface. The requirement of the narrow diameter implants necessitates implant manufacturing from alloys due to their high mechanical properties. Hence, it is necessary to have an insight on the behavior of acid etching of the alloy surface as it might be different due to changed compositions and microstructure, which can further influence the osseointegration process. The present research was carried out to study the effect of acid etching parameters on Ti6Al4V ELI alloy surface properties and the optimization of process parameters to produce micro- and nanotopography on the dental implant surface. This study shows that the Ti6Al4V ELI alloy depicts an entirely different surface topography compared to CP-Ti. Moreover, the surface topography of the Ti6Al4V ELI alloy was also different when etching was done at room temperature compared to high temperature, which in turn affected the behavior of the cell on these surfaces. Both microns and nano-level topography were achieved through the optimized parameters of acid etching on Ti6Al4V ELI alloy dental implant surface along with improved roughness, hydrophilicity, and enhanced cytocompatibility.

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Surface characterization of nanostructured commercially pure titanium modified by sandblasting and acid-etching for implant applications

Cited by 10 publications

References 45 publications

Effect of Surface Modifications on Surface Roughness of Ti6Al4V Alloy Manufactured by 3D Printing, Casting, and Wrought

Effect of Surface Modifications on Surface Roughness of Ti6Al4V Alloy Manufactured by 3D Printing, Casting, and Wrought

Commercially pure titanium modification to enhance corrosion behavior and osteoblast response by ECAP for biomedical applications

Critical Role of Etching Parameters in the Evolution of Nano Micro SLA Surface on the Ti6Al4V Alloy Dental Implants

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