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. 2018 Nov 2;4:33. doi: 10.1186/s40729-018-0145-3

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Clinical parameters and soft tissue parameters. a Modified plaque index. Error bars indicate standard deviation. * = p ≤ 0.05, *** = p ≤ 0.001. b Sulcus bleeding index. Error bars indicate standard deviation. * = p ≤ 0.05, *** = p ≤ 0.001. c Pocket probing depth. The asterisk represents statistically significant differences (* = p ≤ 0.05) observed between subgroups. d Jemt papilla score. The asterisk represents statistically significant differences (* = p ≤ 0.05) observed between subgroups