Improvement of the mechanical, tribological and antibacterial properties of glass ionomer cements by fluorinated graphene

Sun, Li; Zhu, Yan; Duan, Youxin; Zhang, Junyan; Liu, Bin

doi:10.1016/j.dental.2018.02.006

Cited by 80 publications

(64 citation statements)

References 65 publications

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“…The reinforcement by fillers seems to be a viable option to improve its mechanical performance and extend its longevity and indications. Other previous studies showed that graphene and its derivatives could enhance the physical and mechanical properties of cementitious products 33,38,56 . There is some hypothesis to explain the enhancement of mechanical properties, but the more suitable refers to the crack branching mechanism which is composed of four distinct aspects: crack bridging, pull-out, crack deflection and crack tip shielding 57 .…”

Section: Mechanical Testsmentioning

confidence: 89%

“…Graphene and its derivatives have been tested for mechanical reinforcement of certain materials in dentistry 31 , as in hydroxyapatite composites 32 , in calcium silicate cement 33 , in polymethyl methacrylate [34][35][36] and glass-ionomer cement 37,38 . In these works, there were reported improvements in mechanical properties with the incorporation of graphene or its derivatives.…”

Section: Introductionmentioning

confidence: 99%

“…However, a drawback for the use of RGO in dental materials is its dark color. In this matter, Sun et al 38 have fluorinated graphene, and Zanni et al 28 have added zinc oxide to graphene nanoplatelets to obtain a lighter compound, but it was not incorporated into GICs materials.…”

Section: Introductionmentioning

confidence: 99%

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Reduced Graphene Oxide-Zinc Oxide Flower-Like Composite for Glass-Ionomer Materials Reinforcement

et al. 2020

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Composites based on graphene oxide (GO), reduced graphene oxide (RGO) and zinc oxide (ZnO) with different mass ratios (8, 100 and 600) were synthesized through the hydrothermal method at 100 °C and used as reinforcement materials to commercial glass-ionomers cements (GIC). X-ray diffraction (XRD) characterization confirmed the graphite oxidation and ZnO formation as a wurtzite phase. Infrared spectroscopy analyses showed bands of oxygen-containing groups on the GO surface, which reduced after thermal treatment and RGO formation. D and G bands were observed in all samples synthesized, which presented morphology similar to flowers with a crystallite size of 18 nm. The effect on the mechanical properties of GIC after reinforcement with 0.1 wt% of RGO and 3 wt% of the composites was evaluated using a one-way analysis of variance (ANOVA). It was verified slight improvements in the hardness of GIC.

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Section: Mechanical Testsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Reduced Graphene Oxide-Zinc Oxide Flower-Like Composite for Glass-Ionomer Materials Reinforcement

et al. 2020

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“…e color stability values in this study must be viewed keeping in mind both esthetic and structural considerations. e use of sliver and carbon nanoparticles to increase the strength of glass ionomer cements has been previously addressed in the literature [16,20]. It has been shown that the increase in mechanical properties brought about by the addition of even minor amounts of carbon nanoparticles justifies research into the properties of such a mixture [20].…”

Section: Discussionmentioning

confidence: 99%

“…e use of sliver and carbon nanoparticles to increase the strength of glass ionomer cements has been previously addressed in the literature [16,20]. It has been shown that the increase in mechanical properties brought about by the addition of even minor amounts of carbon nanoparticles justifies research into the properties of such a mixture [20]. In the case of silver nanoparticles, in addition to the increase in physical properties, their addition to glass ionomer cements also enhances the antimicrobial properties of these cements [16,17,20].…”

Section: Discussionmentioning

confidence: 99%

Color Stability of Glass Ionomer Cement after Reinforced with Two Different Nanoparticles

Pani

Aljammaz

Alrugi

et al. 2020

International Journal of Dentistry

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Aim. This study aimed to compare the staining characteristics of a commercially available restorative glass ionomer cement to a formulation reinforced by the addition of carbon nanotubes and another formulation reinforced by the addition of silver nanoparticles to the powder of the same cement. Methodology. Twenty samples each of a control glass ionomer cement (PULPDENT® Glass Fill®, Pulpdent Corp. Watertown, MA, USA), control cement reinforced with 0.0006 gm (0.03% by weight) of carbon nanotubes (Sigma Aldrich, St Louis MO, USA), and control cement reinforced with 0.2 gm (10% by weight) of silver nanoparticles (Nanocyl™, Nanocyl SA, Sambreville, Belgium) were immersed in a staining solution. Color evaluations were carried out after 1 h, 24 h, and 1 week. Color change values were calculated. Results. The results indicated that carbon nanotube reinforced specimens exhibited less color stability when compared to controlled glass ionomer cement specimens; however, both samples had significantly greater color stability than silver nanoparticle reinforced glass ionomer samples. Conclusion. It can be concluded within the limitations of this study that carbon nanotube reinforced glass ionomer cements have better color stability than silver nanoparticle reinforced glass ionomer cements.

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Chemically Modified Carbon Nanotubes in Tissue Engineering

Ganjoo¹,

Sharma²,

Kumar³

2022

Chemically Modified Carbon Nanotubes for Commercial Applications

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Improvement of the mechanical, tribological and antibacterial properties of glass ionomer cements by fluorinated graphene

Cited by 80 publications

References 65 publications

Reduced Graphene Oxide-Zinc Oxide Flower-Like Composite for Glass-Ionomer Materials Reinforcement

Reduced Graphene Oxide-Zinc Oxide Flower-Like Composite for Glass-Ionomer Materials Reinforcement

Color Stability of Glass Ionomer Cement after Reinforced with Two Different Nanoparticles

Chemically Modified Carbon Nanotubes in Tissue Engineering

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