Tribocorrosion behavior of veneering biomedical PEEK to Ti6Al4V structures

Sampaio, Miguel Ângelo Guimarães; Buciumeanu, M.; Henriques, Bruno; Silva, Filipe; Souza, Júlio C. M.; Gomes, J.R.

doi:10.1016/j.jmbbm.2015.09.010

Cited by 66 publications

(39 citation statements)

References 35 publications

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“…where L, represents the stroke length (mm), R, the radius of the alumina ball (mm), b, the width of the wear track (mm), s, half of its width (mm), and, h, the height of the triangle (mm). 33 The specific wear rate was calculated according to Archard's wear model:…”

Section: Methodsmentioning

confidence: 99%

“…Further details concerning the evaluation method of the wear volume of flat samples can be found elsewhere. 33 The microstructure of surfaces before testing and the morphological features of worn surfaces were characterized by field emission guns scanning electron microscope (FEG SEM, FEINova 200, USA) in order to identify the dominant wear mechanisms. An optical microscope (Leica DM 2500 M, Leica Microsystems, Germany), was used to measure the width of the wear tracks.…”

Section: Methodsmentioning

confidence: 99%

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Effect of HAp and β‐TCP incorporation on the tribological response of Ti6Al4V biocomposites for implant parts

et al. 2017

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Titanium and its alloys have been widely used in many engineering areas due to their properties. Despite having a high implant-tissue osseointegration time, Ti6Al4V has been extensively used in prosthesis and articular implants. To promote a faster bone ingrowth and consequently reduce the implant fixation time, the addition of a bioactive phase to form a biocomposite seems to be an excellent solution. Because of their bioactivity and similarity in composition with the human bone, HAp and β-TCP are two of the most widely used calcium phosphates in biomedical applications. To guarantee a strong adhesion of the previous bioactive materials in the implants surface, samples of Ti6Al4V, Ti6Al4V+HAp (10 vol %) and Ti6Al4V+β-TCP (10 vol %) TCP were processed by the hot pressing technique. Tribological tests against Al O lubricated in PBS at 37°C were carried out on a ball-on-flat reciprocating sliding geometry. Loads in the range of 3 N to 30 N were applied and their effect on the friction behavior and wear resistance of the tested materials was evaluated. Values of the coefficient of friction as well as the wear rate tend to increase with the addition of a bioactive phase to the Ti alloy. Micrographs of the worn surfaces showed that abrasion and plastic deformation are the prevailing wear mechanisms in the studied tribosystems. For biocomposites, particularly in the case of Ti6Al4V+HAp, pull-out of bioactive particle clusters has a determinant role on the tribological response, increasing both the friction coefficient and the specific wear rate. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1010-1016, 2018.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effect of HAp and β‐TCP incorporation on the tribological response of Ti6Al4V biocomposites for implant parts

et al. 2017

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“…2A [66][67][68], considering the calculation of the middle zone of wear track accordingly the schematic representation of Fig. 2B.…”

Section: Specific Wear Ratementioning

confidence: 99%

Tribological behaviour of glass-ceramics reinforced by Yttria Stabilized Zirconia

Santos

Buciumeanu

Silva

et al. 2016

Tribology International

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“…In the oral cavity, the synergistic effect of a corrosive environment and masticatory loads can significantly increases the degradation rate of titanium‐based surfaces . For instance, previous in vitro studies have reported the corrosion and wear of titanium and its alloys in contact with fluoride agents and biofilm metabolites associated with a low pH . A progressive decrease in the corrosion resistance of commercially pure titanium and Ti6Al4V alloy was reported at F concentration from 227 up to 12 300 ppm .…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7] For instance, previous in vitro studies have reported the corrosion and wear of titanium and its alloys in contact with fluoride agents and biofilm metabolites associated with a low pH. [2][3][4][5][6][7][8] A progressive decrease in the corrosion resistance of commercially pure titanium and Ti6Al4V alloy was reported at F concentration from 227 up to 12 300 ppm. 3,4,7 The high content of fluorides associated with the lowering of pH is detrimental to the surfaces.…”

mentioning

confidence: 99%

Surface damage of dental implant systems and ions release after exposure to fluoride and hydrogen peroxide

Peñarrieta‐Juanito

Sordi

Henriques

et al. 2018

J of Periodontal Research

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Objective The aim of this study was to evaluate surface changes on dental implant systems and ions release after immersion in fluoride and hydrogen peroxide. Methods Ten implant‐abutment assemblies were embedded in acrylic resin and cross‐sectioned along the implant vertical axis. Samples were wet ground and polished. Delimited areas of groups of samples were immersed in 1.23% sodium fluoride gel (F) or in 35% hydrogen peroxide (HP) for 16 min. Gels (n = 3) were collected from the implant surfaces and analyzed by inductively coupled plasma mass spectrometry (ICP‐MS), to detect the concentration of metallic ions released from the implant systems. Selected areas of the abutment and implant (n = 15) were analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Results SEM images revealed surface topographic changes on implant‐abutment joints after immersion in fluoride. Implants showed excessive oxidation within loss of material, while abutment surfaces revealed intergranular corrosion after immersion in fluoride. ICP‐MS results revealed a high concentration of Ti, Al, V ions in fluoride after contact with the implant systems. Localized corrosion of implant systems could not be detected by SEM after immersion in hydrogen peroxide although the profilometry showed increase in roughness. ICP‐MS showed the release of metallic ions in hydrogen peroxide medium after contact with dental implants. Conclusion Therapeutical substances such as fluorides and hydrogen peroxide can promote the degradation of titanium‐based dental implant and abutments leading to the release of toxic ions.

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Tribocorrosion behavior of veneering biomedical PEEK to Ti6Al4V structures

Cited by 66 publications

References 35 publications

Effect of HAp and β‐TCP incorporation on the tribological response of Ti6Al4V biocomposites for implant parts

Effect of HAp and β‐TCP incorporation on the tribological response of Ti6Al4V biocomposites for implant parts

Tribological behaviour of glass-ceramics reinforced by Yttria Stabilized Zirconia

Surface damage of dental implant systems and ions release after exposure to fluoride and hydrogen peroxide

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