Electromyographic Evaluation of Mandibular Biomechanic

The study of the craniomandibular biomechanics is related to the system of predominant lever and of the relation between function and mechanically induced deformations. This study has the purpose of evaluating the chewing muscular dynamics in the surface electromyography Seventeen people of both sex...

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Autores principales:	Coelho-Ferraz,Maria Julia P, Bérzin,Fausto, Amorim,Cesar, Queluz,Dagmar de Paula
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2009
Materias:	Mandibular biomechanical Electromyography
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200029
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spelling	oai:scielo:S0717-950220090002000292009-09-10Electromyographic Evaluation of Mandibular BiomechanicCoelho-Ferraz,Maria Julia PBérzin,FaustoAmorim,CesarQueluz,Dagmar de Paula Mandibular biomechanical Electromyography The study of the craniomandibular biomechanics is related to the system of predominant lever and of the relation between function and mechanically induced deformations. This study has the purpose of evaluating the chewing muscular dynamics in the surface electromyography Seventeen people of both sex, medium aged about 25, were selected, white skin and presenting Class I of Angle without apparent sign and symptom. The electromiographic data were obtained bilaterally from the masseter muscles, anterior temporal portion at the rest position and isometric position. Medtrace® passive bipolar surface electrodes were used coppled to a pre-amplifier, forming a circuit corresponding to a differential circuit. The registrations of the electric signals were caught by EMG- 800C equipment of Brazil EMG System Ltda with eigth channels, sample frequency of 2 KH and 16 bits resolution, digital filter with a band pass of 20-500 Hz. A comparison was through "t" Student or a Man- Whitney test according to the normality or not of the distribution, respectively. The results have shown important differences between the tasks but without sexual dimorphism. All these results indicate to the electrical activity of the temporal muscle in its anterior portion was bigger than the masseter muscle in rest position and the masseter muscle presented a higher potential of action than the anterior temporal muscle in isometric.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.27 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200029en10.4067/S0717-95022009000200029
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Mandibular biomechanical Electromyography
spellingShingle	Mandibular biomechanical Electromyography Coelho-Ferraz,Maria Julia P Bérzin,Fausto Amorim,Cesar Queluz,Dagmar de Paula Electromyographic Evaluation of Mandibular Biomechanic
description	The study of the craniomandibular biomechanics is related to the system of predominant lever and of the relation between function and mechanically induced deformations. This study has the purpose of evaluating the chewing muscular dynamics in the surface electromyography Seventeen people of both sex, medium aged about 25, were selected, white skin and presenting Class I of Angle without apparent sign and symptom. The electromiographic data were obtained bilaterally from the masseter muscles, anterior temporal portion at the rest position and isometric position. Medtrace® passive bipolar surface electrodes were used coppled to a pre-amplifier, forming a circuit corresponding to a differential circuit. The registrations of the electric signals were caught by EMG- 800C equipment of Brazil EMG System Ltda with eigth channels, sample frequency of 2 KH and 16 bits resolution, digital filter with a band pass of 20-500 Hz. A comparison was through "t" Student or a Man- Whitney test according to the normality or not of the distribution, respectively. The results have shown important differences between the tasks but without sexual dimorphism. All these results indicate to the electrical activity of the temporal muscle in its anterior portion was bigger than the masseter muscle in rest position and the masseter muscle presented a higher potential of action than the anterior temporal muscle in isometric.
author	Coelho-Ferraz,Maria Julia P Bérzin,Fausto Amorim,Cesar Queluz,Dagmar de Paula
author_facet	Coelho-Ferraz,Maria Julia P Bérzin,Fausto Amorim,Cesar Queluz,Dagmar de Paula
author_sort	Coelho-Ferraz,Maria Julia P
title	Electromyographic Evaluation of Mandibular Biomechanic
title_short	Electromyographic Evaluation of Mandibular Biomechanic
title_full	Electromyographic Evaluation of Mandibular Biomechanic
title_fullStr	Electromyographic Evaluation of Mandibular Biomechanic
title_full_unstemmed	Electromyographic Evaluation of Mandibular Biomechanic
title_sort	electromyographic evaluation of mandibular biomechanic
publisher	Sociedad Chilena de Anatomía
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200029
work_keys_str_mv	AT coelhoferrazmariajuliap electromyographicevaluationofmandibularbiomechanic AT berzinfausto electromyographicevaluationofmandibularbiomechanic AT amorimcesar electromyographicevaluationofmandibularbiomechanic AT queluzdagmardepaula electromyographicevaluationofmandibularbiomechanic
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Electromyographic Evaluation of Mandibular Biomechanic

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