Characterization of light‐cured, dental‐resin‐based biocomposites

Okulus, Zuzanna; Buchwald, Tomasz; Voelkel, Adam

doi:10.1002/app.42812

Cited by 17 publications

(9 citation statements)

References 77 publications

(185 reference statements)

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“…DOC is one of the important properties of light-cured composites. , This is defined in this work as the depth of the material that is adequately cured after exposure to UV light with 405 nm wavelength. In Figure , the DOC values were obtained, which showed the differences in the DOC values according to the type and content of fillers, the type of photoinitiator, and the type of monomer.…”

Section: Results and Discussionmentioning

confidence: 99%

Photopolymerization of Zeolite/Polymer-Based Composites: toward 3D and 4D Printing Applications

Zhang

Josien

Salomon

et al. 2020

ACS Appl. Polym. Mater.

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In recent years, photopolymerization has found wide applications in industry and daily life, especially 3D printing. However, some defective properties of photopolymers limit their development, such as their mechanical properties, density, compressive strength, and functionality. Herein, in this work, we reported the fabrication of composites containing seven different kinds of zeolites used as fillers under mild photopolymerization conditions (LTA-5A was selected as the benchmark zeolite), that is, visible LED light irradiation at room temperature under air. The filler properties affecting the related depth of cure and the enhanced mechanical (the storage modulus increased by 10-fold compared to that of a pure polymer) and functional properties were examined in detail. In addition, the production of 3D patterns was performed through direct laser writing (DLW) as a lithography technique. As a real breakthrough, the 3D printing of zeolite/polymer composites is presented here for the first time with high filler contents (up to 75 wt %) using this stereolithography approach. 4D behavior can be established in the presence of water, that is, the 3D object can change the shape and return to the starting geometry after desiccation. Remarkably, after debinding of the composites by thermal treatment, a high zeolite porosity can be regenerated. Therefore, the 3D printing of zeolites is possible in two steps: (i) photopolymerization of organic/zeolite composites to generate the desired shape, followed by (ii) removal of the organic part by thermal treatment. This work is expected to lead to valuable developments in the field of photopolymerization reactions in highly filled composites (with the filler content exceeding 50 wt %) and thereby expand their potential application for 3D or 4D printing in the fields of, for example, high-performance lightweight materials and adsorption.

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Section: Results and Discussionmentioning

confidence: 99%

Photopolymerization of Zeolite/Polymer-Based Composites: toward 3D and 4D Printing Applications

Zhang

Josien

Salomon

et al. 2020

ACS Appl. Polym. Mater.

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“…Commercial materials and their compositions used in the study are provided in Table 1 8,[18][19][20] . Materials that require mixing were prepared according to their manufacturer instructions.…”

Section: Methodsmentioning

confidence: 99%

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Panpisut

Toneluck

2020

Dent. Mater. J.

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The aim of this study was to assess monomer conversion, dimensional stability (mass and volume changes), biaxial flexural strength (BFS), and fluoride release of recently developed resin composites containing alkaline fillers (Cention N; CN) compared with resinmodified glass ionomer cements (RMGICs: Riva LC; RL and Fuji II LC; FL), and conventional composite (Z350). FL showed highest monomer conversion (88±2%) followed by RL (73±10%), CN (59±2%), and Z350 (50±2%). RL exhibited highest mass and volume increase (10.22±0.04 wt% and 19.4±0.2 vol%). CN exhibited higher BFS (180±20 MPa) than RMGICs but lower than Z350 (248±27 MPa). The highest cumulative fluoride release at 6 weeks was observed with RL (136±22 ppm) followed by CN (36±4 ppm) and FL (30±3 ppm). CN exhibited monomer conversion higher than the composite. CN also released fluoride in the range of that observed with RMGICs but with higher flexural strength.

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“…Ca 2+ release from HA-lled composites is long-term, as it lasts for at least 16 weeks [10]. Despite doubts on the potential mismatch of refractive indices between HA and methacrylic resins, the degree of conversion (DC), as well as depth of cure (DOC) of HA-lled composites are high [11]. In general, the main concern of CP-lled composites is related to the weak mechanical properties [5,12].…”

Section: Introductionmentioning

confidence: 99%

Physical-Chemical and Biological Properties of Novel Resin-Based Composites for Dental Applications

Buchwald¹,

Sandomierski²,

Smułek³

et al. 2021

SSRN Journal

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Insu cient mechanical properties of hydroxyapatite -based composites prompted the search for new and effective solutions for dental applications. To improve the mechanical properties without losing the remineralization potential, the use of hybrid llers was proposed. The rst of them was based on the formation of hydroxyapatite (HA) layer on the surface of SYLOID®244 silica. The second of the investigated llers was created by simultaneous synthesis of nanoparticles from precursors of HA and silica. The obtained llers were extensively characterized by spectral methods including X-ray Diffractometry (XRD), Fourier-Transform Infrared Spectroscopy (FT-IR), and X-ray uorescence (XRF), as well as by Scanning Electron Microscopy (SEM)/Energy Dispersive Spectroscopy (EDS). Tests using probiotic microorganisms were an important part of the analysis, indicating that there was no potential interaction of the materials with micro ora. The tests of degree of conversion, depth of cure, opacity, sorption, solubility, exural and compressive strength, and the remineralizing potential also showed that the composites with nano-sized silica/HA showed better mechanical properties than the composites with HA alone or commercial silica and at the same time the remineralization remained at the desired level.Thus, the proposed composite has a high application potential in the creation of implants and dental materials.

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Characterization of light‐cured, dental‐resin‐based biocomposites

Cited by 17 publications

References 77 publications

Photopolymerization of Zeolite/Polymer-Based Composites: toward 3D and 4D Printing Applications

Photopolymerization of Zeolite/Polymer-Based Composites: toward 3D and 4D Printing Applications

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Physical-Chemical and Biological Properties of Novel Resin-Based Composites for Dental Applications

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