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. 2023 Jul 25;13:12043. doi: 10.1038/s41598-023-38894-0

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© The Author(s) 2023

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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Periodontal evaluation in the clinical trial. (a) Representative case in the multichannel oral irrigator (MCOI) group. (b) Representative case in the control group. (c and d) Supra-gingival calculus (arrows) is observed in the mandibular anterior teeth after 3 days in only the control group. (e) Modified Quigley Hein Plaque Index, range 0–5. (f) Mühlemann-Son Sulcus Bleeding Index, range 0–5. (g) Percentage of bleeding on probing (BOP) in all teeth. (h) Percentage of swelling in all teeth. The blue bars indicate values in the preclinical trial, and the orange bars represent values in the postclinical trial.