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Type: Artigo
Title: Electromyographic evaluation in children having rapid maxillary expansion
Author: De Rossi, M.
De Rossi, A.
Hallak, J.E.C.
Vitti, M.
Regalo, S.C.H.
Abstract: The aim of this study was to analyze the electromyographic activity of the masseter and temporalis muscles of children having rapid maxillary expansion (RME) with a bonded rapid maxillary expansion appliance. Methods: The sample consisted of 27 children (mean age, 8.6 years) with posterior crossbite who required RME treatment. Electromyographic activity of the masseter and temporalis muscles was analyzed before treatment and after the appliance was removed. The mean interval between the 2 analyses was 5 months. Muscular activity was electromyographically analyzed in rest position, and with maximum voluntary dental clenching and chewing. Differences in the 2 measurements were evaluated by using paired t tests. Results and Conclusions: Electromyographic analysis showed that activity of the masseter and temporalis muscles increased significantly after the expansion appliance was removed during rest, dental clenching, and habitual chewing.
Subject: Maxila
Country: Estados Unidos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.ajodo.2007.08.027
Date Issue: 2009
Appears in Collections:FOP - Artigos e Outros Documentos

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