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. 2020 Feb 11;20:43. doi: 10.1186/s12906-020-2812-1

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© The Author(s). 2020

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Subgroup analysis; comparison of herbal toothpaste with non-herbal toothpaste at 4 weeks follow-up 3a. Effect on plaque using fluoridated toothpaste as control 3b. Effect on plaque using non-fluoridated toothpaste as control 3c. Effect on plaque using -. Silness and Loe index scale for assessment