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Reference Values of Electromyography Studies of the Masseter and Temporalis Muscles
Valores de referencia de estudios de electromiografía de los músculos masetero y temporal;
Valores de referência dos estudos de eletromiografia dos músculos masseter e temporal
| dc.creator | Rozo Albarracín, Andersson Lufandt | |
| dc.date | 2023-06-30 | |
| dc.date | 2025-12-19T20:06:39Z | |
| dc.date | 2025-12-19T20:06:39Z | |
| dc.date.accessioned | 2026-03-25T19:29:24Z | |
| dc.date.available | 2026-03-25T19:29:24Z | |
| dc.identifier | https://revistas.umng.edu.co/index.php/rmed/article/view/5582 | |
| dc.identifier | 10.18359/rmed.5582 | |
| dc.identifier | https://hdl.handle.net/10654/48491 | |
| dc.identifier.uri | http://test.repositoriodigital.com:8080/handle/123456789/201590 | |
| dc.description | The masseter and temporalis muscles are very relevant in the process of mastication; they are also often affected by myoarticular and neurological diseases,among others.This study aims to present the results of electromyography with needle electrodes of the masseter and temporalis muscles at the time of mastication, evaluating the parameters in amplitude and duration of the potentials obtained. Twenty-six individuals were taken with a previous dental evaluation that ruled out congenital alterations, masticatory defects, and with normal dynamometry at the moment of maximum occlusion, to whom needle electromyography was performed in the masseter and temporalis muscles at maximum occlusion; the results were analyzed under the study of the maximum and minimum amplitude values,as well as duration located in percentiles and quadrilles, seeking to determine values that could be considered normal in this sample. When studying the temporal muscle, it was found that the normal duration is between 4.75 and 6.487 msec, while the amplitude would be between 1572.05 uV and 1038.03 uV; in the case of the masseter muscle, it was evidenced that the normal duration is between 4.03 and 6.767 msec, while the amplitude would be between 2838.43 uV and 1864.635 uV. This study reveals values specific to our population in terms of duration and amplitude of the motor unit action potentials of the temporalis and masseter muscles, which agree with those previously established as normal. In previous studies performed in other parts of the world, it was found that the duration is shorter than in the extremities. Still, the amplitude is similar, although with a tendency to lower values than the average. | |
| dc.description | Los músculos masetero y temporal tienen mucha relevancia en el proceso de masticación; además, suelen verse afectados con enfermedades mioarticulares, neurológicas, entre otras. El objetivo de este estudio es presentar los resultados de electromiografía con electrodo de aguja de los músculos masetero y temporal al momento de la masticación, evaluando los parámetros en amplitud y duración de los potenciales obtenidos. Se tomaron veintiséis individuos con previa valoración de odontología que descartaba alteraciones congénitas, defectos de la masticación y con dinamometría normal en momento de mayor oclusión, a los cuales se les realizó electromiografía de aguja en los músculos masetero y temporal en la máxima oclusión; los resultados fueron analizados bajo el estudio de los valores de amplitud máxima y mínima, así como duración ubicando en percentiles y cuadriles, buscando determinar valores que puedan considerarse normales en esta muestra. Al estudiar el músculo temporal se encontró que la duración normal se encuentra entre 4,75 y 6,487 mseg, mientras que la amplitud se encontraría entre 1572,05 uV y 1038,03 uV; en el caso del músculo masetero, se evidenció que la duración normal se encuentra entre 4,03 y 6,767 mseg, mientras que la amplitud se encontraría entre 2838,43 uV y 1864,635 uV. Este estudio da a conocer valores propios para nuestra población en lo que respecta a duración y amplitud de los potenciales de acción de unidad motora de los músculos temporal y masetero, los cuales concuerdan con los establecidos previamente como normales. En estudios previos realizados en otras partes del mundo, se encontró que la duración es menor que en las extremidades, pero la amplitud es similar, aunque con tendencia a valores inferiores al promedio. | |
| dc.description | os músculos masseter e temporal são muito importantes no processo de mastigação. Além disso, eles são frequentemente afetados por doenças mioarticulares, neurológicas e outras. O objetivo deste estudo é apresentar os resultados da eletromiografia com eletrodos de agulha dos músculos masseter e temporal no momento da mastigação, avaliando os parâmetros de amplitude e duração dos potenciais obtidos. Foram tomados 26 indivíduos com avaliação odontológica prévia que descartou alterações congênitas, defeitos de mastigação e com dinamometria normal quando da oclusão máxima, nos quais foi realizada a eletromiografia de agulha dos músculos masseter e temporal em oclusão máxima; os resultados foram analisados sob o estudo dos valores máximos e mínimos de amplitude, bem como de duração, colocando-os em percentis e quartis, buscando determinar valores que pudessem ser considerados normais nessa amostra. Ao estudar o músculo temporal, verificou-se que a duração normal está entre 4,75 e 6,487 mseg, enquanto a amplitude estaria entre 1572,05 uV e 1038,03 uV; no caso do músculo masseter, verificou-se que a duração normal está entre 4,03 e 6,767 mseg, enquanto a amplitude estaria entre 2838,43 uV e 1864,635 uV. Este estudo revela valores próprios para nossa população em termos de duração e amplitude dos potenciais de ação da unidade motora dos músculos temporal e masseter, que estão de acordo com os valores previamente estabelecidos como normais. Em estudos anteriores realizados em outros lugares, verificou-se que a duração é mais curta do que nas extremidades, mas a amplitude é semelhante, embora com uma tendência a valores mais baixos do que a média. | |
| dc.format | text/xml | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Universidad Militar Nueva Granada | |
| dc.relation | https://revistas.umng.edu.co/index.php/rmed/article/view/5582/5592 | |
| dc.relation | https://revistas.umng.edu.co/index.php/rmed/article/view/5582/5681 | |
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| dc.rights | Derechos de autor 2023 Revista Med | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.source | Revista Med; Vol. 30 No. 1 (2022); 45-54 | |
| dc.source | Revista Med; Vol. 30 Núm. 1 (2022); 45-54 | |
| dc.source | Revista Med; v. 30 n. 1 (2022); 45-54 | |
| dc.source | 1909-7700 | |
| dc.source | 0121-5256 | |
| dc.subject | electromyography | |
| dc.subject | electrodiagnosis | |
| dc.subject | masseter | |
| dc.subject | temporal | |
| dc.subject | electromiografía | |
| dc.subject | electrodiagnóstico | |
| dc.subject | masetero | |
| dc.subject | temporal | |
| dc.subject | eletromiografia | |
| dc.subject | eletrodiagnóstico | |
| dc.subject | masseter | |
| dc.subject | temporal | |
| dc.title | Reference Values of Electromyography Studies of the Masseter and Temporalis Muscles | |
| dc.title | Valores de referencia de estudios de electromiografía de los músculos masetero y temporal | |
| dc.title | Valores de referência dos estudos de eletromiografia dos músculos masseter e temporal | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |
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