Boron nitride nanosheets modified with zinc oxide nanoparticles as novel fillers of dental resin composite

Alansy, Ameenah Saad; Saeed, Thekra Ali; Al-Attab, Reem; Guo, Yuqing; Yang, Yanwei; Liu, Bin; Fan, Zengjie

doi:10.1016/j.dental.2022.08.010

Cited by 25 publications

(18 citation statements)

References 28 publications

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“…In clinical treatment, the accumulation of the oral biofilm and the degradation process of the resin led to secondary caries and caused the failure of the treatment [ 38 , 39 , 40 ]. To avoid the restorations failing too soon, the bacterial acid attack on the biomaterials’ surfaces at the bonded interfaces must be reduced [ 41 ].…”

Section: Discussionmentioning

confidence: 99%

A Multifunctional Dental Resin Composite with Sr-N-Doped TiO2 and n-HA Fillers for Antibacterial and Mineralization Effects

Zhao

Zhang

Liang

et al. 2023

IJMS

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Dental caries, particularly secondary caries, which is the main contributor to dental repair failure, has been the subject of extensive research due to its biofilm-mediated, sugar-driven, multifactorial, and dynamic characteristics. The clinical utility of restorations is improved by cleaning bacteria nearby and remineralizing marginal crevices. In this study, a novel multifunctional dental resin composite (DRC) composed of Sr-N-co-doped titanium dioxide (Sr-N-TiO2) nanoparticles and nano-hydroxyapatite (n-HA) reinforcing fillers with improved antibacterial and mineralization properties is proposed. The experimental results showed that the anatase-phase Sr-N-TiO2 nanoparticles were synthesized successfully. After this, the curing depth (CD) of the DRC was measured from 4.36 ± 0.18 mm to 5.10 ± 0.19 mm, which met the clinical treatment needs. The maximum antibacterial rate against Streptococcus mutans (S. mutans) was 98.96%, showing significant inhibition effects (p < 0.0001), which was experimentally verified to be derived from reactive oxygen species (ROS). Meanwhile, the resin exhibited excellent self-remineralization behavior in an SBF solution, and the molar ratio of Ca/P was close to that of HA. Moreover, the relative growth rate (RGR) of mouse fibroblast L929 indicated a high biocompatibility, with the cytotoxicity level being 0 or I. Therefore, our research provides a suitable approach for improving the antibacterial and mineralization properties of DRCs.

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Section: Discussionmentioning

confidence: 99%

A Multifunctional Dental Resin Composite with Sr-N-Doped TiO2 and n-HA Fillers for Antibacterial and Mineralization Effects

Zhao

Zhang

Liang

et al. 2023

IJMS

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“…The depth of cure is affected by the curing time, curing unit intensity, amount of light penetration, and aggregate effect of fillers [ 39 ]. A previous study showed that ZnO NPs scatter light and obstruct light penetration during curing [ 40 ]. Consistent with those findings, the different weight percentages of ZnO NP fillers used in this study may have affected the degree of dispersion in the resin matrix.…”

Section: Discussionmentioning

confidence: 99%

Effect of Zinc Oxide Incorporation on the Antibacterial, Physicochemical, and Mechanical Properties of Pit and Fissure Sealants

Choi

Yang

2023

Polymers

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This study aimed to evaluate the antibacterial, physicochemical, and mechanical properties of pit and fissure sealants containing different weight percentages of zinc oxide nanoparticles (ZnO NPs). The following amounts of ZnO NPs were added to a commercially available pit and fissure sealant (BeautiSealant, Shofu, Japan) to prepare the experimental materials: 0 wt.% (commercial control (CC)), 0.5 wt.% (ZnO 0.5), 1 wt.% (ZnO 1.0), 2 wt.% (ZnO 2.0), and 4 wt.% (ZnO 4.0). The antibacterial effect against S. mutans was confirmed by counting the colony-forming units (CFUs) and observing live/dead bacteria. In addition, ion release, depth of cure, water sorption and solubility, and flexural strength tests were conducted. When compared with the CC, the experimental groups containing ZnO NPs showed zinc ion emission and significantly different CFUs (p < 0.05) with fewer live bacteria. ZnO NP addition reduced the depth of cure and water solubility and increased water sorption in comparison with the CC (p < 0.05). However, all groups showed similar flexural strength (p > 0.05). The pit and fissure sealants containing ZnO NPs exhibited antibacterial activity against S. mutans with no negative effects on physicochemical and mechanical properties, and thus, these sealants can be ideal secondary caries prevention material.

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“…This process was repeated five times to obtain a sheet of thin-film shielding paper with a thickness of 0.1 mm. The prepared thin-film shielding paper was observed with a field emission scanning electron microscope (FESEM; S-4800, Hitachi, Japan) to analyze the degree of dispersion 28 . Two different criteria were used for the observation, i.e., how well the particles the particles of the shielding material were dispersed and how close polymer pattern was to the structure of the morpho butterfly wing.…”

Section: Methodsmentioning

confidence: 99%

Development of ultra-thin radiation-shielding paper through nanofiber modeling of morpho butterfly wing structure

Kim

Byun

2022

Sci Rep

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In medical institutions, radiation shielding is an effective strategy to protect medical personnel and patients from exposure. Reducing the weight of the shield worn by medical personnel in the radiation generating area plays a key role in improving their productivity and mobility. In this study, a new lightweight radiation shield was developed by electrospinning a polymer-tungsten composite material to produce nanofibers with a multi-layered thin-film structure similar to that of a morpho butterfly wing. The fabricated shield was in the form of 0.1 mm thick flexible shielding paper. The multi-layer structure of the thin shielding paper was obtained through nanofiber pattern formation via electrospinning a dispersion of tungsten particles. At 0.1 mm thickness, the paper’s shielding rate was 64.88% at 60 keV. Furthermore, at 0.3 mm thick and arranged in a laminated structure, the shielding rate was 90.10% and the lead equivalent was 0.296 mmPb. When used as an apron material, the weight can be reduced by 45% compared to existing lead products. In addition, the material is highly processable and can be used to manufacture various flexible products, such as hats, gloves, underwear, and scarves used in medical institutions.

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Boron nitride nanosheets modified with zinc oxide nanoparticles as novel fillers of dental resin composite

Cited by 25 publications

References 28 publications

A Multifunctional Dental Resin Composite with Sr-N-Doped TiO2 and n-HA Fillers for Antibacterial and Mineralization Effects

A Multifunctional Dental Resin Composite with Sr-N-Doped TiO2 and n-HA Fillers for Antibacterial and Mineralization Effects

Effect of Zinc Oxide Incorporation on the Antibacterial, Physicochemical, and Mechanical Properties of Pit and Fissure Sealants

Development of ultra-thin radiation-shielding paper through nanofiber modeling of morpho butterfly wing structure

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