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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2009, Volume 46, Issue 4,





IRINA Nica, VAleriu Rusu, Maria-Alexandra PAun, CIPRIANA Stefanescu, PETRE Vizureanu, ANCA Aluculesei Thermal Properties of Nanofilled and Microfilled Restorative Composites


Abstract:
The thermal properties of nanofilled and microfilled restorative composites (Filtek Supreme XT and Filtek Z250) are studied in comparison with the ones of teeth. Our results show slightly decreased values of the thermal constants of Filtek Supreme XT with respect of Filtek Z250, due to the smaller filler particle size. Both analyzed composite materials have the values of the thermal conductivity and diffusivity very close to the one of enamel, with the better fitting in the case of Filtek Supreme XT. Comparing with the values for dentin, the thermal conductivity is about two times higher, while the thermal diffusivity is three times higher. Keywords: thermal properties, thermal conductivity, restorative composites



Issue: 2009 Volume 46, Issue 4
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