Journal article

Thermal Properties of Nanofilled and Microfilled Restorative Composites

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.


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