Activities of masticatory muscles in patients after orthognathic surgery

Palma, Elena Di; Gasparini, Giulio; Pelo, Sandro; Tartaglia, Gianluca Martino; Chimenti, Claudio

doi:10.1016/j.jcms.2009.05.004

Cited by 45 publications

(55 citation statements)

References 30 publications

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“…In this context no significant correlations were found between the surgical procedure and maximum bite force 6 months after orthognathic surgery (Hunt and Cunningham, 1997;Di Palma et al, 2009).…”

Section: Discussionmentioning

confidence: 76%

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Developmental myosin heavy chain mRNA in masseter after orthognathic surgery: A preliminary study

Oukhai

Maricic

Schneider

et al. 2011

Journal of Cranio-Maxillofacial Surgery

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Section: Discussionmentioning

confidence: 76%

“…The moment ratio and force level increase with the length of the mandible and the number of occluding teeth. Orthognathic surgery improves the quantity and efficiency of occlusion and therefore decreases muscle activity but increases bite force (Di Palma et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Developmental myosin heavy chain mRNA in masseter after orthognathic surgery: A preliminary study

Oukhai

Maricic

Schneider

et al. 2011

Journal of Cranio-Maxillofacial Surgery

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“…Different sEMG studies have made use of the protocol and related indexes proposed by Ferrario et al to evaluate the masticatory muscles 16,24,[41][42][43][44] . The only difference between two acquisitions (on cotton rolls and in IP) is dental contact, thus limiting the technical and biological noise inherent in this instrumental analysis.…”

Section: Discussionmentioning

confidence: 99%

Standardized Electromyographic Indexes Allow a Reliable Measurement of Masticatory Muscles Function

Rosati¹,

Semelewa²,

Сатыго³

et al. 2016

EDUJ

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Introduction: Surface electromyography (sEMG) allows the quantitative and qualitative analysis of muscles recruitment and it is a method currently used in research and in the clinical practice. Considering that sEMG assesses the portion of muscular electrical activity that reaches cutaneous surface, a well-standardized protocol should be used, allowing to remove (or reduce) technical and biological artefacts. Methodology: To evaluate the repeatability of the normalized indexes describing masticatory muscles sEMG, the standardized cutaneous myoelectric activity of Temporalis Anterior and Masseter muscles was recorded twice during a one week interval (Acquisition sessions T1 and T2) in 20 young healthy adults. The data obtained during T1 and T2 were compared. A clinical case was shown as an example of clinical sEMG application. Results: No significant differences in the standardized indexes elaborated by sEMG signals of T1 and T2 acquisition sessions were found, strengthening the effectiveness of the standardization procedure. Conclusion: sEMG indexes allow the evaluation of occlusal-induced proprioceptive mediated muscular recruitment in a reliable way. This measurement protocol can be clinically applied to estimate the muscular adaption to new occlusal conditions or to re-establish physiological muscular coordination.

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“…Tal participação decorre das seguintes funções desse músculo: a) posicionar o bolo alimentar entre os dentes molares 23 ; b) não permitir que resíduos alimentares se alojem no vestíbulo bucal 2 , e c) evitar que os dentes causem injurias à mucosa da bochecha 2 . Por outro lado, nos sujeitos Classe III 28 , a maior duração do período ativo (ON) decorre de uma mastigação ineficiente 10,29,30 , a qual é consequente da condição oclusal 31 , que apresenta menor superfície e área de contato dos dentes molares. Além disso, a desproporção entre as maxilas ocasiona falta de coordenação das funções mandibulares.…”

Section: Discussionunclassified

Atividade exacerbada do músculo bucinador em sujeitos com má oclusão de Angle Classe III

Nagae

Bérzin

Alves

2012

Rev. odontol. UNESP

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ResumoIntrodução: Estudos descrevem a função do músculo bucinador como controlador do bolo alimentar durante a mastigação. Pouco se sabe, entretanto, sobre seu comportamento em sujeitos com distintos padrões dentário e esquelético, o que contribuiria para o desenvolvimento dos tratamentos ortodônticos e ortognático. Objetivo: Este estudo tem como objetivo investigar a atividade eletromiográfica do músculo bucinador, em sujeitos Classe III de Angle, durante a mastigação. Material e método: A amostra foi constituída por 32 sujeitos saudáveis, sem Disfunção Temporomandibular durante a mastigação, sendo 16 sujeitos Classe I e 16 sujeitos Classe III. Para garantir a fidedignidade da captação do sinal, foram utilizados eletrodos diferenciais, além de testes de função, correlação e normalização dos dados. Na medida em que os dados revelaram uma distribuição não normal (teste de Shapiro-Wilk), realizou-se teste da mediana, sendo estabelecido o nível de significância em 5%. Descritores: Bucinador; eletromiografia; má oclusão de Angle Classe III; mastigação. AbstractIntroduction: Studies describe the role of the buccinators muscle as controlling the bolus during mastication. Little is known, however, about its behavior in subjects with different dental and skeletal standards, which would contribute to the development of orthodontic and orthognathic treatments. Objective: The purpose of this study was to investigate the electromyographic activity of the buccinator muscle, in subjects Class III Angle, during mastication. Material and method: The sample was composed by 32 healthy subjects, without Temporomandibular Disfunction, during mastication, being 16 Class I and 16 Class III. In order to guarantee the reliability of the caption of the signal, differential electrode were used, as well as function tests, correlation and normalization of data. As the data revealed a non-normal distribution (Shapiro-Wilk test), the median test was carried out, establishing then the level of significance in 5%. Result: In the comparison of the normalized data of the variable Root Means Square (RMS) (µV), from the active period, no significant differences were found (Classe I: 0,469 ± 0,355; Classe III: 0,531 ± 0,4812). Nonetheless, in comparison to the variables RMS (µV) from the inactive period (Classe I: 0,359 ± 0,355; Classe III: 0,641 ± 0,355 -p; 0,0016), duration of the active period (ON) (Classe I: 0,313 ± 0,180; Classe III: 0,687 ± 0,180 -p: 0,0368) and the result between the RMS of the inactive period and the RMS of the active period (RIA) Classe I: 0,391 ± 0,355; Classe III: 0,609 ± 0.355 -p: 0,0137) significant differences were found. Conclusion: Based in the results of the data analysis, we could to comprove the existence of exacerbated activity of the buccinator muscle in Angle's Class III subjects.

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Activities of masticatory muscles in patients after orthognathic surgery

Cited by 45 publications

References 30 publications

Developmental myosin heavy chain mRNA in masseter after orthognathic surgery: A preliminary study

Developmental myosin heavy chain mRNA in masseter after orthognathic surgery: A preliminary study

Standardized Electromyographic Indexes Allow a Reliable Measurement of Masticatory Muscles Function

Atividade exacerbada do músculo bucinador em sujeitos com má oclusão de Angle Classe III

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