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The experiment was a randomized, examiner-blind, single-center study performed on parallel group. It took place at Dermscan Poland (Gdansk, Poland). In Poland, an electric toothbrush is considered to be a domestic electric apparatus. Conducting a clinical study with such devices does not require any approval by an ethics committee. However, the study was conducted in compliance with Good Clinical Practices and in accordance with the “Declaration of Helsinki.” Written informed consents for participation in the clinical study were obtained for all participants.
Copyright and License information: 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. 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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