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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Particle size distributions (A), FE-SEM images of Zn-PBG powder (before mixing with flowable composite resin) (B) and overlap of the EDX mapping of the chemical elements distribution (C). Scale bar is 1 µm (B) and 6 µm (C).