Enhancement of the Mechanical Properties of Hydroxyapatite/Sulphonated Poly Ether Ether Ketone Treated Layer for Orthopaedic and Dental Implant Application

Abstract

The mechanical properties of coated layers are one of the important factors for the long-term success of orthopeadic and dental implants. In this study, the mechanical properties of the porous coated layer were examined via scratch and nanoindentation tests. The effect of compression load on the porous coated layer of sulphonated poly ether ether ketone/Hydroxyapatite was studied to determine whether it changes its mechanical properties. The water contact angle and surface roughness of the compressed coated layer were also measured. The results showed a significant increase in elastic modulus, with mean values ranging from 0.464 GPa to 1.199 GPa (p<0.05). The average scratch hardness also increased significantly from 69.9 MPa to 95.7 MPa after compression, but the surface roughness and wettability decreased significantly (p<0.05). Simple compression enhanced the mechanical properties of the sulphonated poly ether ether ketone/hydroxyapatite coated layer, and the desired mechanical properties for orthopaedic and dental implant application can be achieved.

Effect of Varying Stand-off Distance on Tribological and Mechanical Properties of Plasma Sprayed Hydroxyapatite Coated Metallic Substrates

“…The adhesive strength of HA-coated samples at optimum SOD in the present work is found to be better as compared to samples fabricated by other methods as reported in the published research [50,51]. On comparing with samples fabricated by the plasma spraying method in the reported literature [21,52], the coated samples in the present work exhibit better wear resistance and micro-hardness. However, the direct comparison of experimental results in this study with the published research seems to be difficult because of the different HA coating deposition methods and process parameters used in published research.…”

Stability, biomechanics and biocompatibility analysis following different preparation strategies of hierarchical zeolite coatings on titanium alloy surfaces

“…As shown in Figures 2A, B, the coating retention rate for all three methods remained above 75% after ultrasonic treatment, with no significant differences among the three groups. Sufficient adhesion of the coating is essential for the successful functionality of coated implants in physiological environments, as previously highlighted by Sharifi et al (Sharifi et al, 2018).…”

A review of calcium phosphate cements and acrylic bone cements as injectable materials for bone repair and implant fixation

“…142 A combination of nano-hydroxyapatite (nHA) as the solid phase and a modified sodium phosphate solution as a mixing liquid has been proposed to improve the cohesion of CPCs in aqueous media as well as in human blood. 18 HA has a broad range of clinical applications, has been used in bone cements for the repair of craniofacial and dental defects, 106,143 and has proven to be osteoconductive as a 3D scaffold and bone graft substitute material. [144][145][146][147][148][149][150][151] In particular, nHA has a higher surface area and a higher reactivity 152 favoring cell adhesion and proliferation of mesenchymal stems cells (MSCs), alkaline phosphatase activity, calcium deposition, and osteogenic gene expression.…”