How the anterior, middle and posterior portions of the temporalis muscle work during mastication

Aim: The aim of this study was to investigate mean electrical activity and how the anterior, middle, and posterior portions of the temporalis muscle work during mastication. Methods: The sample consisted of 16 healthy male college freshmen trichotomized, aged between 18 and 25 years, with Angle’s Cl...

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Main Authors: Mirian Nagae, Fausto Bérzin, Marcelo Corrêa Alves, Maria da Graça Rodrigues Bérzin
Format: Article
Language:English
Published: Universidade Estadual de Campinas 2015-11-01
Series:Brazilian Journal of Oral Sciences
Subjects:
Online Access:https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641635
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author Mirian Nagae
Fausto Bérzin
Marcelo Corrêa Alves
Maria da Graça Rodrigues Bérzin
author_facet Mirian Nagae
Fausto Bérzin
Marcelo Corrêa Alves
Maria da Graça Rodrigues Bérzin
author_sort Mirian Nagae
collection DOAJ
description Aim: The aim of this study was to investigate mean electrical activity and how the anterior, middle, and posterior portions of the temporalis muscle work during mastication. Methods: The sample consisted of 16 healthy male college freshmen trichotomized, aged between 18 and 25 years, with Angle’s Class I and no temporomandibular disorders. Electromyographic (EMG) recordings were made in anterior, middle and posterior portions of the temporalis muscle during mastication for 5 s. Results: It was found a significantly lower RMS value in the posterior portion (RMS: 1243.92) compared with those of the anterior (RMS: 2149.77) and middle (RMS: 2531.38) portions. Conclusions: There is an association between the portions of the temporalis muscle. It was found a significantly lower RMS value in the posterior portion showing that the anterior and middle portions of the muscle have a predominant function of maintaining movement during mastication.
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spelling doaj.art-605e33e0fdb94dc6a95d377273f20a312022-12-21T20:14:24ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252015-11-0110310.20396/bjos.v10i3.8641635How the anterior, middle and posterior portions of the temporalis muscle work during masticationMirian Nagae0Fausto Bérzin1Marcelo Corrêa Alves2Maria da Graça Rodrigues BérzinUniversity of CampinasUniversity of CampinasUniversity of São PauloAim: The aim of this study was to investigate mean electrical activity and how the anterior, middle, and posterior portions of the temporalis muscle work during mastication. Methods: The sample consisted of 16 healthy male college freshmen trichotomized, aged between 18 and 25 years, with Angle’s Class I and no temporomandibular disorders. Electromyographic (EMG) recordings were made in anterior, middle and posterior portions of the temporalis muscle during mastication for 5 s. Results: It was found a significantly lower RMS value in the posterior portion (RMS: 1243.92) compared with those of the anterior (RMS: 2149.77) and middle (RMS: 2531.38) portions. Conclusions: There is an association between the portions of the temporalis muscle. It was found a significantly lower RMS value in the posterior portion showing that the anterior and middle portions of the muscle have a predominant function of maintaining movement during mastication.https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641635ElectromyographyMasticationTemporal muscle
spellingShingle Mirian Nagae
Fausto Bérzin
Marcelo Corrêa Alves
Maria da Graça Rodrigues Bérzin
How the anterior, middle and posterior portions of the temporalis muscle work during mastication
Brazilian Journal of Oral Sciences
Electromyography
Mastication
Temporal muscle
title How the anterior, middle and posterior portions of the temporalis muscle work during mastication
title_full How the anterior, middle and posterior portions of the temporalis muscle work during mastication
title_fullStr How the anterior, middle and posterior portions of the temporalis muscle work during mastication
title_full_unstemmed How the anterior, middle and posterior portions of the temporalis muscle work during mastication
title_short How the anterior, middle and posterior portions of the temporalis muscle work during mastication
title_sort how the anterior middle and posterior portions of the temporalis muscle work during mastication
topic Electromyography
Mastication
Temporal muscle
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641635
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