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. 2023 Jan 9;11(1):167. doi: 10.3390/biomedicines11010167

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© 2023 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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RU is located in different parts of the oral cavity (indicated with arrows): (a,d,g) at patient admission. (b,e,h) after the first application of the NTP. Finally, (c,f,i) show follow-up when the wound has healed (indicated with arrows).