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Article

Incorporation of Copper-Doped Mesoporous Bioactive Glass Nanospheres in Experimental Dental Composites: Chemical and Mechanical Characterization

1
Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
2
Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0455 Oslo, Norway
3
Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Javier Gil
Materials 2021, 14(10), 2611; https://doi.org/10.3390/ma14102611
Received: 12 April 2021 / Revised: 6 May 2021 / Accepted: 14 May 2021 / Published: 17 May 2021
(This article belongs to the Special Issue Bioactive Dental Materials)
Experimental dental resin composites incorporating copper-doped mesoporous bioactive glass nanospheres (Cu-MBGN) were designed to impart antibacterial and remineralizing properties. The study evaluated the influence of Cu-MBGN on the mechanical properties and photopolymerization of resin composites. Cu-MBGN were synthesized using a microemulsion-assisted sol–gel method. Increasing amounts of Cu-MBGN (0, 1, 5, and 10 wt %) were added to the organic polymer matrix with inert glass micro- and nanofillers while maintaining a constant resin/filler ratio. Six tests were performed: X-ray diffraction, scanning electron microscopy, flexural strength (FS), flexural modulus (FM), Vickers microhardness (MH), and degree of conversion (DC). FS and MH of Cu-MBGN composites with silica fillers showed no deterioration with aging, with statistically similar results at 1 and 28 days. FM was not influenced by the addition of Cu-MBGN but was reduced for all tested materials after 28 days. The specimens with 1 and 5% Cu-MBGN had the highest FS, FM, MH, and DC values at 28 days, while controls with 45S5 bioactive glass had the lowest FM, FS, and MH. DC was high for all materials (83.7–93.0%). Cu-MBGN composites with silica have a potential for clinical implementation due to high DC and good mechanical properties with adequate resistance to aging. View Full-Text
Keywords: dental; resin composites; copper; bioactive glass; mesoporous; nanoparticles dental; resin composites; copper; bioactive glass; mesoporous; nanoparticles
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MDPI and ACS Style

Marovic, D.; Haugen, H.J.; Negovetic Mandic, V.; Par, M.; Zheng, K.; Tarle, Z.; Boccaccini, A.R. Incorporation of Copper-Doped Mesoporous Bioactive Glass Nanospheres in Experimental Dental Composites: Chemical and Mechanical Characterization. Materials 2021, 14, 2611. https://doi.org/10.3390/ma14102611

AMA Style

Marovic D, Haugen HJ, Negovetic Mandic V, Par M, Zheng K, Tarle Z, Boccaccini AR. Incorporation of Copper-Doped Mesoporous Bioactive Glass Nanospheres in Experimental Dental Composites: Chemical and Mechanical Characterization. Materials. 2021; 14(10):2611. https://doi.org/10.3390/ma14102611

Chicago/Turabian Style

Marovic, Danijela, Håvard J. Haugen, Visnja Negovetic Mandic, Matej Par, Kai Zheng, Zrinka Tarle, and Aldo R. Boccaccini. 2021. "Incorporation of Copper-Doped Mesoporous Bioactive Glass Nanospheres in Experimental Dental Composites: Chemical and Mechanical Characterization" Materials 14, no. 10: 2611. https://doi.org/10.3390/ma14102611

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