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. 2022 Jul 16;10(20):6876–6889. doi: 10.12998/wjcc.v10.i20.6876

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©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/

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Comparison of the normalized muscle activity ratio (mean ± SD) during unilateral chewing. A: Comparison of the normalized muscle activity (NMA) ratio during unilateral chewing of candy on the preferred side (PS); B: Comparison of the NMA ratio during unilateral chewing of candy on the non-PS (NPS); C: Comparison of the NMA ratio during unilateral chewing of almond on the PS; D: Comparison of the NMA ratio during unilateral chewing of almond on the NPS; E: Comparison of the masseter muscle NMA ratio on the working side of NPS unilateral chewing of almond. ^aComparison to the non-bruxism group, P < 0.05; ^bComparison to the centric bruxism group, P < 0.05. CB: Centric bruxism; ECB: Eccentric bruxism; NB: Non-bruxism; WS: Working side; NWS: Non-working side; TA: Temporalis anterior; MM: Masseter muscle.