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. 2024 Oct 27;28(11):613. doi: 10.1007/s00784-024-05936-4

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Mean root coverage in % according to (a) Recession type, (b) Jaw type, and (c) Tooth type and complete root coverage in % according to (d) Recession type and (e) Jaw type. Recession depth was measured digitally between the most apical point of the gingival margin and the CEJ. Mean root coverage was calculated by dividing the difference between the preoperative and postoperative recession depth by the preoperative recession depth multiplied by 100 (Cairo et al. 2009). Complete root coverage was calculated by dividing the number of teeth with a postoperative completely covered root (root covered to or above the CEJ) by the total number of teeth included multiplied by 100 [30]