The Influence of graphene in improvement of physico-mechanical properties in PMMA denture base resins
The clinical performances of dental materials depend on their mechanical profiles, determining their long-term deformation and wear resistance. This paper describes a study on the mechanical properties, water absorption and morphological properties of a polymethyl methacrylate (PMMA) resin enriched...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
23 July 2019
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| In: |
Materials
Year: 2019, Jahrgang: 12, Heft: 14, Pages: 2335 |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma12142335 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.3390/ma12142335 Verlag, Volltext: https://www.mdpi.com/1996-1944/12/14/2335 
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| Verfasserangaben: | Cecilia Bacali, Mindra Badea, Marioara Moldovan, Codruta Sarosi, Vivi Nastase, Ioana Baldea, Radu Stefan Chiorean and Mariana Constantiniuc |
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| 520 | |a The clinical performances of dental materials depend on their mechanical profiles, determining their long-term deformation and wear resistance. This paper describes a study on the mechanical properties, water absorption and morphological properties of a polymethyl methacrylate (PMMA) resin enriched with graphene-silver nanoparticles (Gr-Ag). Two different concentrations—1 and 2 wt.%—of Gr-Ag were loaded into the PMMA material. For the mechanical characterization, the compression behavior, flexural strength and tensile strength were evaluated. Optical microscopy in polarized light and scanning electron microscopy were used for filler analysis. The filler addition led to an improvement in all mechanical properties, with slight changes being derived from the filler content variation. Gr-Ag use led to an increase in the applied maximum loads. Moreover, 1 wt.% Gr-Ag determined an increase of 174% in the modulus of rupture, which indicates high flexibility. | ||
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