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. 2021 Aug 7;13(16):2633. doi: 10.3390/polym13162633

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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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Light micrographs taken from matrices after Trypsin degradation assay after 7 days of storage. (a) Fibro-Gide surface at 60× magnification. (b) Fibro-Gide surface at 120× magnification. (c) Mucograft surface at 60× magnification. (d) Mucograft surface at 120× magnification. (e) Mucoderm surface at 60× magnification. (f) Mucoderm surface at 120× magnification. Scale bar is 500 µm in (a–c), and 100 µm in (d–f). Disorganized fiber structure caused by partial degradation with rippled collagen fibrils (arrows) is observed.