Potentialities of some surface characterization techniques for the development of titanium biomedical alloys

Vanzillotta, Paulo Sérgio; Soares, G.A.; Bastos, Ivan Napoleão; Simão, Renata Antoun; Kuromoto, Neide K.

doi:10.1590/s1516-14392004000300011

Cited by 11 publications

(8 citation statements)

References 20 publications

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“…Moreover, a small standard deviation suggests a small spread in the results, indicating a relatively regular surface. The obtained values for the polishing treatment are close to the values reported in the literature (Ra = 0.1 µm), which means that the surfaces used in analyses were prepared correctly [43,44]. The influence of mechanical treatment on the surface roughness of samples of tested materials is presented in Figure 6.…”

Section: The Influence Of Mechanical Treatment On Surface Roughnesssupporting

confidence: 83%

Influence of the Surface Roughness of PEEK GRF30 and Ti6Al4V SLM on the Viability of Primary Human Osteoblasts Determined by the MTT Test

Prochor

Mierzejewska

2019

Materials

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The aim of the study was to clearly determine whether selected modern medical materials and three dimensional printing allow for satisfactory viability of human osteoblasts, which is important from the point of view of the subsequent osseointegration process. Moreover, as implants are produced with various topography, the influence of surface roughness on viability of bone cells was evaluated. To conduct the research, primary human osteoblasts (PromoCell) were used. Cells were seeded on samples of glass-reinforced polyetheretherketone (30% of the filling), Ti6Al4V manufactured with the use of selective laser melting technology and forged Ti6Al4V with appropriately prepared variable surface roughness. To assess the viability of the tested cells the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide was used. Results showed that all evaluated materials do not exhibit cytotoxic properties. Moreover, on their basis it can be concluded that there is a certain surface topography (designated i.a. as roughness equal to approx. Ra = 0.30 µm), which ensures the highest possible viability of human osteoblasts. On the basis of the received data, it can also be concluded that modern glass-reinforced polyetheretherketone or Ti6Al4V produced by rapid prototyping method allow to manufacture implants that should be effectively used in clinical conditions.

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Section: The Influence Of Mechanical Treatment On Surface Roughnesssupporting

confidence: 83%

Influence of the Surface Roughness of PEEK GRF30 and Ti6Al4V SLM on the Viability of Primary Human Osteoblasts Determined by the MTT Test

Prochor

Mierzejewska

2019

Materials

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“…Similar to acid etching, the DAE is also able to treat the surface via chemical or acid whether in sequence [ 45 ] or with the combination of both [ 67 , 68 ]. Rapid osseointegration can be achieved by dual etching through micro rough surface [ 55 ].…”

Section: Type Of Surface Treatmentmentioning

confidence: 99%

“…Both methods have their advantages and drawbacks as we have discussed in this paper. It has been reported that the improvement of bone implant interface and greater resistance of failure were influenced by acid etched surface [ 45 ]. In addition, sandblasted with large-grit (25–50 mm) and acid etched surface were found to have a 50–60% mean value of bone implant contact compared to titanium plasma sprayed surface which had only a 30–40% mean value of bone implant contact after 6 weeks [ 46 ].…”

Section: Final Remarksmentioning

confidence: 99%

“…As for an acid etching method, the surface was prepared by polishing with several grits of sand papers [ 41 ] to achieve uniform [ 42 ] and regular morphology of the surface [ 43 ]. Typical surface roughness that is obtained from polishing process is in the range of ~0.1 [ 44 , 45 ] to 3 μ m [ 43 ]. Figure 2 shows the typical morphologies of Ti alloy polished using silicon carbide (SiC) grit papers.…”

Section: Introductionmentioning

confidence: 99%

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Surface Modifications and Their Effects on Titanium Dental Implants

Jemat

Ghazali

Razali

et al. 2015

BioMed Research International

427

310

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This review covers several basic methodologies of surface treatment and their effects on titanium (Ti) implants. The importance of each treatment and its effects will be discussed in detail in order to compare their effectiveness in promoting osseointegration. Published literature for the last 18 years was selected with the use of keywords like titanium dental implant, surface roughness, coating, and osseointegration. Significant surface roughness played an important role in providing effective surface for bone implant contact, cell proliferation, and removal torque, despite having good mechanical properties. Overall, published studies indicated that an acid etched surface-modified and a coating application on commercial pure titanium implant was most preferable in producing the good surface roughness. Thus, a combination of a good surface roughness and mechanical properties of titanium could lead to successful dental implants.

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“…Furthermore, the surface roughness of Ti also determines the stability of the bone formation and resorption at the interface with the implant [75]. The dual acid etching treats the surface by chemical means or by acids applied sequentially or in combination [76,77]. This technique achieves a surface with micro-roughness, which some authors associate with higher values of reverse removal torque than machined surface implants [78] (Figure 1B).…”

Section: Subtractive Methodsmentioning

confidence: 99%

Treatments to Optimize Dental Implant Surface Topography and Enhance Cell Bioactivity

Miranda‐Rius¹,

Lahor-Soler²,

Brunet‐Llobet³

et al. 2016

Dental Implantology and Biomaterial

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Osseointegration is a biological process in which histological, surgical, infectious factors, biomechanical load, and the choice of biomaterials all play important roles. In the case of dental implants, the success of this process is also influenced by the design, composition, and properties of the implant surface, which may stimulate cell bioactivity and promote osteoblast adhesion. Currently, the raw materials most frequently used in the manufacture of dental implants are titanium, its alloys, and certain ceramic materials such as zirconia. Multiple macroscopic designs incorporating various diameters, lengths, shapes, and types of screw offer different options for specific clinical situations. The characteristics of implant surfaces have aroused great interest, due to their importance in osseointegration. The different methods used to modify surface properties are classified as additive (i.e., impregnation and coating) or subtractive (i.e., physical, mechanical and chemical methods). The surface characteristics of dental implants also have a significant influence on peri-implant microbiota.

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Potentialities of some surface characterization techniques for the development of titanium biomedical alloys

Cited by 11 publications

References 20 publications

Influence of the Surface Roughness of PEEK GRF30 and Ti6Al4V SLM on the Viability of Primary Human Osteoblasts Determined by the MTT Test

Influence of the Surface Roughness of PEEK GRF30 and Ti6Al4V SLM on the Viability of Primary Human Osteoblasts Determined by the MTT Test

Surface Modifications and Their Effects on Titanium Dental Implants

Treatments to Optimize Dental Implant Surface Topography and Enhance Cell Bioactivity

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