Mechanical and biological characteristics of diamond-like carbon coated poly aryl-ether-ether-ketone

Wang, Huaiyu; Xu, Ming; Zhang, Wei; Kwok, Dixon T. K.; Jiang, Jiang; Wu, Zhengwei; Chu, Paul K.

doi:10.1016/j.biomaterials.2010.07.054

Cited by 164 publications

(131 citation statements)

References 37 publications

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“…Polyetheretherketone (PEEK) is a promising biopolymer, as its mechanical strength and elastic modulus are close to those of human cortical bone 1. β‐tricalcium phosphate (β‐TCP), a bioceramic material, has good bioactivity as well as biodegradability 2.…”

Section: Introductionmentioning

confidence: 99%

A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

et al. 2018

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Polyetheretherketone (PEEK)/β‐tricalcium phosphate (β‐TCP) scaffolds are expected to be able to combine the excellent mechanical strength of PEEK and the good bioactivity and biodegradability of β‐TCP. While PEEK acts as a closed membrane in which β‐TCP is completely wrapped after the melting/solidifying processing, the PEEK membrane degrades very little, hence the scaffolds cannot display bioactivity and biodegradability. The strategy reported here is to blend a biodegradable polymer with PEEK and β‐TCP to fabricate multi‐material scaffolds via selective laser sintering (SLS). The biodegradable polymer first degrades and leaves caverns on the closed membrane, and then the wrapped β‐TCP is exposed to body fluid. In this study, poly(l‐lactide) (PLLA) is adopted as the biodegradable polymer. The results show that large numbers of caverns form on the membrane with the degradation of PLLA, enabling direct contact between β‐TCP and body fluid, and allowing for their ion‐exchange. As a consequence, the scaffolds display the bioactivity, biodegradability and cytocompatibility. Moreover, bone defect repair studies reveal that new bone tissues grow from the margin towards the center of the scaffolds from the histological analysis. The bone defect region is completely connected to the host bone end after 8 weeks of implantation.

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Section: Introductionmentioning

confidence: 99%

A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

et al. 2018

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“…PEEK has excellent mechanical properties, for example, creep resistance, low water absorption and high fracture resistance [1][2][3][4] . It has been proposed as a functional and esthetic metalfree material in various dental applications, such as implants 5) , temporary abutments 6,7) , orthodontic wires 8) , removable prostheses 9) and fixed prostheses 10) .…”

Section: Introductionmentioning

confidence: 99%

“…Most studies recommended the use of 98% sulfuric acid to modify chemical and physical surface of PEEK to improve bonding [16][17][18][19][20] . Previous studies revealed that sulfuric acid created sulfonate (−SO 3) groups in the polymer chains of PEEK [22][23][24][25] which chemically cross-linked to methylmethacrylate (MMA) dental adhesives 13,21) . Another study did not found chemical functional groups on PEEK after etching with 98% sulfuric acid for 60 s, but confirmed micromechanical bonding due to penetration of resin tags into pit and porous surface of PEEK 19) .…”

Section: Introductionmentioning

confidence: 99%

Effects of different sulfuric acid etching concentrations on PEEK surface bonding to resin composite

Chaijareenont

Prakhamsai

Silthampitag

et al. 2018

Dental Materials Journal

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This study evaluated the effects of surface pretreatment with different concentrations of sulfuric acid etching on surface properties and bonding between Polyetheretherketone (PEEK) and a resin composite. Six groups of surface pretreatment (no pretreatment, etched with 70, 80, 85, 90, and 98% sulfuric acid for 60 s) were treated on PEEK. Surface roughness, scanning electron microscopy (SEM) and atomic force microscopy (AFM) analyses were examined. Shear bond strength (SBS) and cross-sectional observations of the interfaces were performed. One-way ANOVA analysis revealed differences in surface roughness and SBS between groups. The 90 and 98% sulfuric acid etching significantly achieved the highest SBS (p<0.05). SEM and AFM demonstrated etched surfaces with wide and deep pores. The 90 and 98% sulfuric acid etching were suggested to be the optimal concentration to improve adhesion between PEEK and the resin composite.

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“…PEEK has an adjustable mechanical property that is similar to that of human cortical bone, and this can mitigate concerns over the risks of bone resorption caused by stress shielding as a result of elasticity mismatch between metallic implants and human bones. 1 Moreover, PEEK exhibits stable chemical properties, good biocompatibility and natural radiolucency. 2,3 However, PEEK is a bioinert material, 1 and its implantation in a living body could result in encapsulation of fibrous tissues that isolates the implant from the surrounding bone tissues.…”

Section: Introductionmentioning

confidence: 99%

Osseointegration of nanohydroxyapatite- or nano-calcium silicate-incorporated polyetheretherketone bioactive composites in vivo

Tang

et al. 2016

IJN

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Mechanical and biological characteristics of diamond-like carbon coated poly aryl-ether-ether-ketone

Cited by 164 publications

References 37 publications

A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

Effects of different sulfuric acid etching concentrations on PEEK surface bonding to resin composite

Osseointegration of nanohydroxyapatite- or nano-calcium silicate-incorporated polyetheretherketone bioactive composites in vivo

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