Analysis of Stress and Fracture Strength of Zirconia Implants after Cyclic Loading

Cruvinel, Diogo Rodrigues; Silveira, Renata Espíndola; Galo, Rodrigo; Alândia-Román, Carla Cecília; Pires‐de‐Souza, Fernanda de Carvalho Panzeri; Panzeri, Heitor

doi:10.1590/1516-1439.010815

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…In the process of implant repair, mechanical properties [ 8 ] and osseointegration [ 9 ] are key factors that ensure the success and long-term stability of the implant. Studies show that when zirconia implants are tested for static and cyclic fatigue under laboratory conditions, they can withstand the shear force required for implantation and show better mechanical properties than titanium implants [ 10 , 11 , 12 ]. In a recent study, the mechanical properties of zirconia were improved by adjusting its microstructure [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization and Osseointegrative Properties of Pulsed Laser-Deposited Fluorinated Hydroxyapatite Films on Nano-Zirconia for Implant Applications

Komasa

Hontsu

et al. 2022

IJMS

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Standard zirconia implants used in restoration still present problems related to inertness and long-term stability. Various physicochemical approaches have been used to modify the implant surfaces to improve early and late bone-to-implant integration; however, no ideal surface modification has been reported. This study used pulsed laser deposition to deposit a fluorinated hydroxyapatite (FHA) film on a zirconia implant to create a biologically active surface. The film prepared was uniform, dense, and crack-free, and exhibited granular surface droplets; it also presented excellent mechanical strength and favorable biological behavior. The FHA-coated implant was implanted on the femur of Sprague–Dawley rats, and various tests and analyses were performed. Results show that the in vitro initial cell activity on the FHA-coated samples was enhanced. In addition, higher alkaline phosphatase activity and cell mineralization were detected in cells cultured on the FHA-coated groups. Further, the newly formed bone volume of the FHA-coated group was higher than that of the bare micro-adjusted composite nano-zirconia (NANOZR) group. Therefore, the FHA film facilitated osseointegration and may improve the long-term survival rates of dental implants, and could become part of a new treatment technology for implant surfaces, promoting further optimization of NANOZR implant materials.

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Section: Introductionmentioning

confidence: 99%

Structural Characterization and Osseointegrative Properties of Pulsed Laser-Deposited Fluorinated Hydroxyapatite Films on Nano-Zirconia for Implant Applications

Komasa

Hontsu

et al. 2022

IJMS

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“…Nevertheless, Zirconia implants may possess a difficulty that concerns with the distribution of stress around the implant since it owns a high modulus of elasticity (210 GPa) in comparison with to that titanium (110 GPa) [7]. Also, Zirconia implants can result a high peak of stress at the interface between bone and implant like the state with the titanium implants [8][9][10]. New biocompatible materials and modern technologies have made it feasible to substitute many components of the human body.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanocermic on Some Properties of Polyetheretherketone Based Biocomposites

Mohammed¹,

Oleiwi²,

Al-Hassani³

2020

ETJ

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Polyetheretherketone (PEEK) materials belong to a group of high-performance thermoplastic polymers thermoplastic that has been proposed as a substitute for metals in biomaterials. In this research, in order to improve the performances of PEEK, nano titanium dioxide (n-TiO2) and nano-hydroxyapatite (n-HAp) were incorporated into PEEK loading up to (1.5 wt%) to fabricate PEEK composites by using a method of melt-blending and hot compressing. Properties, such as compression, density, the morphology of fracture, and element analysis were examined for preparing samples. The results showed that the compression and density properties improved with increased weight fraction for two types of reinforcement, but the higher values obtained at (1.5 wt%) for two types of powders. It was found the higher compression strength and compression modulus obtained when reinforced with (1.5% n-HAp) which equal to (107.632 MPa and 3.991 GPa) respectively, than for samples reinforced with (1.5% n-TiO2) which equal to (91.579 MPa and 3.123GPa) respectively, while the density results have opposite behavior, it was found the higher values obtained when reinforced with (n-TiO2) than for samples reinforced with (n-HAp) and at (1.5% n-TiO2) the higher density, which equal to (1.3656) while at (1.5% n-HAp) which equal to (1.3425). Field emission scanning electron microscope (FESEM) manifested, that the fracture morphology transferred from brittle to ductile when reinforced with nano particles. Also, EDS analysis elucidated an identically uniform distribution of n-TiO2 and n-HAp.

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Fabrication of hydroxyapatite thin films on polyetheretherketone substrates using a sputtering technique

Ozeki

Masuzawa

Aoki³

2017

Materials Science and Engineering: C

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Analysis of Stress and Fracture Strength of Zirconia Implants after Cyclic Loading

Cited by 4 publications

References 31 publications

Structural Characterization and Osseointegrative Properties of Pulsed Laser-Deposited Fluorinated Hydroxyapatite Films on Nano-Zirconia for Implant Applications

Structural Characterization and Osseointegrative Properties of Pulsed Laser-Deposited Fluorinated Hydroxyapatite Films on Nano-Zirconia for Implant Applications

Influence of Nanocermic on Some Properties of Polyetheretherketone Based Biocomposites

Fabrication of hydroxyapatite thin films on polyetheretherketone substrates using a sputtering technique

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