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. 2021 Oct 9;13(20):3469. doi: 10.3390/polym13203469

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© 2021 by the authors.

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 (https://creativecommons.org/licenses/by/4.0/).

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µXCT sectional images from the centre of the three-unit FDPs, each with the total porosity (measured on a region of interest (ROI) 6 mm × 4 mm × 4.2 mm from the centre of the restoration).

µXCT sectional images from the centre of the three-unit FDPs, each with the total porosity (measured on a region of interest (ROI) 6 mm × 4 mm × 4.2 mm from the centre of the restoration).