What is it about?
The aim of this study was to evaluate the optical properties of supra-nano spherical fillers with different diameters and the color matching ability of resin composites (RC) incorporating these fillers.
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Why is it important?
The spectra of the ϕ150-nm nano filler produced a blueish structural color. The spectra of the ϕ260-nm nano filler produced a yellowish structural color. Both nano fillers showed a uniform spherical shape and exhibited no aggregation. Resin composite (RC) incorporating ϕ260-nm nano fillers (D260RC) could reflect base RC colors. The structural color of D260RC enhanced the chameleon effects to improve color matching.
Perspectives
D260RC producing structural color demonstrated a broad spectrum and reduction in brightness and chromatic value by adapting to surrounding restorative materials, suggesting its ability to enhance the chameleon (blending) effects to improve color matching. D260RC showed better color matching ability than resin composite containing uniformly sized ϕ150-nm SiO2–ZrO2 supra-nano spherical filler.
Dr Satoshi Yamaguchi
Osaka University Graduate School of Dentistry
Read the Original
This page is a summary of: Color matching ability of resin composites incorporating supra-nano spherical filler producing structural color, Dental Materials, February 2021, Elsevier,
DOI: 10.1016/j.dental.2021.01.023.
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