| Naslov: | Synthesis of PMMA/ZnO nanoparticles composite used for resin teeth |
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| Avtorji: | ID Popović Antić, Danica (Avtor)
ID Bobovnik, Rajko (Avtor)
ID Bolka, Silvester (Avtor)
ID Vukadinovič, Miroslav (Avtor)
ID Lazić, Vojkan (Avtor)
ID Rudolf, Rebeka (Avtor)
ID Inštitut za kovinske materiale in tehnologije (Lastnik avtorskih pravic) |
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| Datoteke: |  Materiali_in_tehnologije_2017_Popovic_et_al._Synthesis_of_PMMAZnO_nanoparticles_composite_used_for_resin_teeth.pdf (1,55 MB)
MD5: 03D3F9BF7BC5B56537005BC9B3129CD4
PID: 20.500.12556/dkum/f51c657e-0d16-4a35-8e1b-4b73246a3227
 http://mit.imt.si/Revija/izvodi/mit175/popovic.pdf
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FS - Fakulteta za strojništvo
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| Opis: | Wear resistance is one of the most important physical properties of the artificial teeth used in acrylic dentures. The goal of this research was to synthesize a new composite material made of matrix Poly-(methyl methacrylate)-PMMA with different percentages (2 % and 3 % of volume fractions) of zinc-oxide nanoparticles (ZnO NPs) as reinforcing elements, to improve its mechanical properties. The dynamic mechanical behaviour of this composite was studied through the DMA method in comparison to the pure PMMA supported by the characterization of their microstructures. Then the wear resistance was analysed on the samples, which were prepared in the form of teeth. In this context their vertical height loss was measured after 100,000 chewing cycles on a chewing simulator, before and after the artificial thermal ageing. Investigations showed that the PMMA/ZnO NP composites dampened the vibrations better than the pure PMMA, which could be assigned to the homogenous distribution of ZnO NPs in the PMMA matrix. It was found that the mean vertical height loss for the pure PMMA teeth was significantly higher (more than 4 times) compared to composite teeth made with ZnO NPs. Introducing the thermal artificial ageing led to the finding that there was no effect on the height loss by the composite material with 3 % of volume fractions of ZnO NPs. Based on this it was concluded that PMMA/ZnO NPs composites showed improved in-vitro wear resistance compared to acrylic-resin denture teeth, so this new composite material should be preferred when occlusal stability is considered to be of high priority. |
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| Ključne besede: | poly-methyl methacrylate, PMMA, zinc-oxide nanoparticles, composite, resin teeth |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Leto izida: | 2017 |
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| Št. strani: | str. 871-878 |
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| Številčenje: | Letn. 51, št. 5 |
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| PID: | 20.500.12556/DKUM-69226  |
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| ISSN: | 1580-2949 |
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| UDK: | 620.3:616.314-77:678.6:67.017 |
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| COBISS.SI-ID: | 20916758 |
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| DOI: | 10.17222/mit.2017.025 |
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| ISSN pri članku: | 1580-2949 |
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| NUK URN: | URN:SI:UM:DK:VQJKDMRM |
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| Datum objave v DKUM: | 12.12.2017 |
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| Število ogledov: | 1870 |
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| Število prenosov: | 436 |
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| Metapodatki: |     |
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| Področja: | Ostalo
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