Relação da espessura e da atividade elétrica do músculo masseter com a força de mordida: um estudo morfológico e eletrofisiológico

Oliveira, Jabson Herber Profiro de; Filho, Mário Genuíno Dourado; Lima, Niedje Siqueira de; Silva, Hilton Justino da; Filho, Milton Marcelino

doi:10.1590/1982-0216201618318915

Cited by 8 publications

(2 citation statements)

References 32 publications

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“…Muscle fatigue, which is a natural muscle mechanism, occurs when it is incapable of maintaining high force levels over time. [17][18][19][20][21] The fatigue depends on the type, duration, and intensity of the exercise; the muscle fiber type; the training level of the individual; and the environmental conditions where the exercise is performed. 5 This variable can be analyzed through electrical activity patterns, mainly obtained with surface electromyography (EMG) by means of isometric contractions, which causes this phenomenon more easily 1,22,23 -although usual isotonic situations are also investigated.…”

Section: Introductionmentioning

confidence: 99%

Influence of Breathing Modes and Facial Growth Patterns on Electromyographic Fatigue of Masticatory Muscles in Children

Gomez,

Rockenbach,

Moraes

et al. 2023

Int Arch Otorhinolaryngol

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Introduction Changes in breathing patterns affect the harmonious development of the structures of the craniofacial system, leading to changes in posture, occlusion, and facial growth patterns. However, little is known about how these changes influence the muscle contraction patterns, either at rest or while functioning, and either in a normal or unbalanced condition. Objective To study the masseter and anterior temporal muscles fatigue during mastication in nasal- and mouth-breathing children, also considering their facial growth patterns. Methods: A total of 70 children aged 6 to 12 years old who met the study criteria were assessed. Speech-language-hearing, otorhinolaryngologic, and cephalometric assessments were performed to divide them into groups. In the electromyographic assessment, the children were asked to chew gum following a metronome until they felt fatigued. The median frequency of the muscles was analyzed at 15, 30, 45, and 60 seconds of mastication. The reported time of fatigue perception was recorded. The data were analyzed with analysis of variance (ANOVA) and the Kruskal-Wallis and the Mann-Whitney U tests. Results There were no median frequency decrease patterns nor differences in the myoelectric manifestations and reported time of fatigue between the groups. Conclusion The masticatory muscles did not reveal fatigue in the electromyographic analysis; however, the fatigue time was reported, despite the absence of physiological fatigue. The breathing mode, the facial growth pattern, and the association between them did not interfere with the behavior of the median frequency of the electromyographic signal and the fatigue time perception.

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Section: Introductionmentioning

confidence: 99%

Influence of Breathing Modes and Facial Growth Patterns on Electromyographic Fatigue of Masticatory Muscles in Children

Gomez,

Rockenbach,

Moraes

et al. 2023

Int Arch Otorhinolaryngol

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“…O masseter é um dos principais músculos responsáveis pelos movimentos mandibulares e também o maior responsável, pela aplicação de força durante a mordida, tendo grande importância na cinética mandibular e considerado uma das bases do sistema estomatognático (OLIVEIRA, 2016).…”

Section: Introductionunclassified

Caracterização epidemiológica das internações por traumatismo intracraniano no estado do Piauí

Brito¹,

Soares²,

Alves³

et al. 2022

Estudos Em Saúde No Contexto Multiprofissional: Avanços, Desafios E Reflexões

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O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores.Permitido fazer download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem de nenhuma forma ou utilizá-la para fins comerciais. www.uniedusul.com.brOs estudos em saúde, desde antes de Florence Nightingale (1820-1910) e de Hipócrates (460 a.C.-377 a.C.), manifestam-se como uma esperança para a sociedade. Uma esperança de evolução e de resolubilidade, como também um instrumento que muni as próximas gerações com o saber, sendo este capaz de permitir a síntese de conhecimentos e de novos avanços e inovações.Nesta ótica, este livro surge como uma proposta de conjugar os saberes multiprofissionais das áreas de medicina, enfermagem, fisioterapia e psicologia, abordando temáticas fundamentais para as práticas assistenciais.No decorrer da leitura será possível compreender que um dos principais objetivos desta obra é permear para além dos processos fisiológicos rotineiramente discutidos, dando foco aos agravos em saúde atuais, os cuidados profissionais, permitir e fomentar a compreensão e a sistematização assistencial, além de proporcionar a reflexão dos atuais contextos em saúde.Não longe disso, tendo em vista a atual realidade em saúde, este exemplar se propõe a discutir, em alguns momentos, as principais informações acerca da pandemia da Covid-19, enfatizando seus agravos, principais vítimas, além da sinalização dos cuidados assistenciais.Desta maneira, esta publicação, composta por 10 capítulos produzidos por profissionais e discentes sob a orientação de especialistas, mestres e doutores, visa contribuir com produções atuais para a melhoria das práticas clínicas-assistenciais, além de nutrir um horizonte capaz de unir ensino, pesquisa e extensão, fomentando novas ideias e perpetuando a validação da indispensabilidade da ciência, da saúde e da educação.

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Ultrasound analysis of the masseter and anterior temporalis muscles in edentulous patients rehabilitated with full-arch fixed implant-supported prostheses

Alkaya,

Yüksel,

Evlice

et al. 2024

Clin Oral Invest

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Objectives Total tooth loss is common in the aging population resulting in insufficient chewing function with subsequent weakening of the masticatory muscles. The study aims to evaluate the changes in thicknesses of the masseter and anterior temporal muscle in edentulous patients following the reconstruction of implant-supported fixed prostheses and compare them with the dentate individuals. Materials and methods The study was designed as a prospective, single-center, controlled clinical trial. A total of 60 participants were included in the present study. The patients were divided into two groups; Group I (Test Group): 30 edentulous patients who received implant-supported fixed prostheses, Group II (Control Group): 30 dentate individuals of an age and sex-matched group. Ultrasonography was used to measure the cross-sectional thickness of the left and right musculus masseter and anterior temporalis immediately after the cementation of the prosthetic rehabilitation (T1), on the 1st (T2) and 6th (T3) months after rehabilitation and at a single time point in the control group. Results The results showed that there were significant comparison differences in muscle thickness at the baseline measurements between groups while at the end of the 6th month, these differences were not significant. The muscle thicknesses of both the masseter and anterior temporalis muscles increased significantly at T2 and T3 compared to T1 in the test group. The asymmetry index between the left and right muscles in the test group and the asymmetry differences between groups also decreased significantly at the end of the 6th month. Conclusion The implant-supported fixed prostheses significantly increase the thicknesses of the masseter and anterior temporal muscle together with a decrease in the asymmetry between the left and right muscles. At six months, implant-treated patients showed similar muscle thicknesses compared to dentate individuals. Clinical relevance The findings suggest that implant-supported fixed prostheses can improve the masticatory function and facial symmetry of edentulous patients.

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Relação da espessura e da atividade elétrica do músculo masseter com a força de mordida: um estudo morfológico e eletrofisiológico

Cited by 8 publications

References 32 publications

Influence of Breathing Modes and Facial Growth Patterns on Electromyographic Fatigue of Masticatory Muscles in Children

Influence of Breathing Modes and Facial Growth Patterns on Electromyographic Fatigue of Masticatory Muscles in Children

Caracterização epidemiológica das internações por traumatismo intracraniano no estado do Piauí

Ultrasound analysis of the masseter and anterior temporalis muscles in edentulous patients rehabilitated with full-arch fixed implant-supported prostheses

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