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Type: Artigo de periódico
Title: Electromyographic Study Of The Masseter Muscle In Individuals With Class Ii Malocclusion.
Author: Palomari, E T
Vitti, M
Tosello, D de Oliveira
Semprini, M
Rodrigues, A L
Abstract: The objective of this work was to study the action of the masseter muscle through electromyography and to analyze the difference of action potential generated by several pre-established jaw movements in individuals with Class II malocclusion. It was studied nine young individuals from both sexes, with ages ranging from 17 to 35, with no history of orthodontic treatment and/or having some kind of alteration in the temporomandibular joint (T.M.J.). In order to collect the electromyographic signs we have used a TECA TE-4 Electromygraph and surface electrodes type Beckman. The data were submitted to nonparametric statistical analysis by Friedman test. The response variables left occlusive contact, free protraction, protraction with occlusive contact, incisor mastication, right molar mastication and forced central occlusion movements showed significant outcomes. Thus we have concluded that as the occlusive balance suffers alterations, the malocclusions become predominant and the masseter muscle undergoes functional and structural modifications.
Subject: Action Potentials
Malocclusion, Angle Class Ii
Masseter Muscle
Muscle Contraction
Citation: Electromyography And Clinical Neurophysiology. v. 42, n. 2, p. 71-7, 2002-Mar.
Rights: fechado
Identifier DOI: 
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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