Correlation of stress and muscle activity of patients with different degrees of temporomandibular disorder

Tosato, Juliana de Paiva; Cária, Paulo Henrique Ferreira; Gomes, Cid André Fidelis de Paula; Bérzin, Fausto; Politti, Fabiano; Gonzalez, Tabajara de Oliveira; Biasotto‐Gonzalez, Daniela Aparecida

doi:10.1589/jpts.27.1227

Cited by 30 publications

(21 citation statements)

References 38 publications

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“…De Paiva Tosato al. [9], Lauriti et al [10] and Mazzetto et al [62] showed that EMG activity of the chewing muscles was positively correlated with the severity of TMD. Regarding TMD severity, our study found no correlation between jaw function limitations and raw and normalized EMG values.…”

Section: Discussionmentioning

confidence: 99%

“…The Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD) is considered the most comprehensive tool for diagnosing and classifying TMD in myofascial pain, joint disc alterations, arthralgia, arthritis and osteoarthritis [8,9]. Surface electromyography (sEMG) can contribute to knowledge of muscle physiology as a complementary instrument in TMD assessment, as well as differential diagnosis and TMD monitoring [10].…”

Section: Introductionmentioning

confidence: 99%

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Cervical spine range of motion, posture and electromyographic activity of masticatory muscles in temporomandibular disorders

et al. 2020

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Introduction: Temporomandibular joint disorders (TMD or TMJD) involve clinical problems and symptoms affecting the temporomandibular joint (TMJ) and associated structures. The temporomandibular joints are anatomically connected to the cervical region, where cervical spine movements occur simultaneously to masticatory muscle activation and jaw movements. Objective: Our study sought to assess the relationship between the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD), surface electromyography (sEMG) of the masticatory muscles, posture and cervical flexibility in women with TMD. Method: Fifty women with an average age of 27.0 ± 6.37 years, diagnosed with TMD according to RDC/TMD, were assessed for craniocervical posture, cervical flexibility and sEMG of the masticatory muscles. Results: There were no differences in jaw function limitations, depression, pain level and its interference in work ability and daily activities, posture and sEMG between TMD diagnoses or between muscle classification (p > 0.05). Depression scores were higher among participants with biarticular dysfunction (p = 0.023). The group with bruxism exhibited a higher pain level at assessment (p = 0.001) and a greater reduction in work ability (p = 0.039). Subjects with muscular and mixed TMD showed less cervical rotation to the right when compared with those with articular TMD. Conclusion: There was no difference in posture or sEMG values for TMD diagnoses, joint and muscle dysfunctions and the presence of bruxism. Muscle dysfunction is associated with reduced cervical rotation to the right. Jaw function limitations did not interfere in posture or sEMG and depression was associated with pain.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cervical spine range of motion, posture and electromyographic activity of masticatory muscles in temporomandibular disorders

et al. 2020

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“…(1,6) This muscular adaptation, which the temporal muscle assumes the additional function to compensate the loss of the masseter muscle strength, may occur to minimize pain in a motor response in individuals with TMD. (17) Alterations in the electrical activity of masticatory muscles in patients with TMD has been related to muscle pain, emotional factors, stress and tension, moreover, greater muscle asymmetry can be observed in this group of patients during the sitting evaluation and MI. (18,19) As the results of this study, authors demonstrated in their study a greater activity of the left anterior temporal than the masseter in patients with TMD, when evaluated during MI.…”

Section: Discussionmentioning

confidence: 97%

Biofotogrametric and electromyographic analysis in different position in women with temporomandibular disorder.

Silva

Milanesi²,

Pasinato³

et al. 2020

mtprehabjournal

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Introduction: The relationship established between TMJ (Temporomandibular Joint), cranium and cervical spine requires the synchrony of these structures for the proper performance of stomatognathic functions and muscle balance in this region. Objective: Evaluate the craniocervical posture and the electrical activity of masticatory and cervical muscles in sitting and standing positions in patients with TMD, correlating these variables. Method: The participants were 21 women, with mean age 28 ± 5.33 years and severe TMD. The participants were evaluated by electromyography of the masseter, anterior temporal and sternocleidomastoid (SCM) and upper trapezius muscles, bilaterally, in standing and sitting position. The body posture was evaluated by biophotogrammetry, with analysis of the Head Horizontal Alignment (HHA) and Acromion Horizontal Alignment (AHA) in frontal view and the Head Vertical Alignment (HVA) and Head Horizontal Alignment related to seventh cervical vertebra (HHAc7) in lateral view. Results: The electrical activity of masticatory muscles during resting did not differ between the different evaluated positions. During maximum intercuspation, the electrical activity was significantly lower in the left masseter (p=0.016), higher in the left anterior temporal muscle (p=0.046) and higher in the right (p=0.005) and left (p=0.015) upper trapezius muscles, in standing position when compared to sitting position. The photogrammetric values found were within the normal range. There was a significant and moderate negative correlation between the left SCM muscle and the right (r=0.386) and left (r=0.428) HHAc7 angle. Conclusions: Muscular electrical activity was modified with the change between sitting and standing positions, with an increase in cervical muscle recruitment and asynchrony of the masticatory muscles. Thus, it can be inferred that there is a postural destabilization with possible head anteriorization during maximum intercuspation, reinforcing the relation of synergy between the masticatory and cervical muscles.

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“…The study regarding the influence of stressogenic professions on the degree of sleep bruxism manifestations was performed according to the criteria proposed by Nishimura [21]. We have applied questionnaires for the quantitative assessment of SB manifestations [22][23][24][25]: clinical questionnaire, Fonseca questionnaire, multifactorial questionnaire for bruxism associated pain, sleep quality questionnaire. For the quantitative assessment of the emotional subjective feelings, we have used the Visual Analogue Scale (VAS).…”

Section: Methodsmentioning

confidence: 99%

Manifestation of Sleep Bruxism According to the Age of Patients

Romaniuc¹,

Fala²,

Lacusta³

et al. 2018

EDUJ

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PhD, Univ. Prof., Academician d Neurology residentIntroduction: Bruxism is a widespread condition, affecting up to 85-90% of the general population, and in 5% of these individuals, the grinding evolves into a clinical condition. In many cases, sleep bruxism is latent, the disorder may be identified by its consequences (dental wear, etc.). This ascertains the need to develop diagnostic methods that may be able to identify bruxism at the initial stages of the disorder. Aim of the study: to determine the peculiarities of the clinical manifestation of primary sleep bruxism (SB) based on the age of the patients. Methodology: One hundred patients with primary SB (70 patients aged between 18-35 and 30 patients aged between 35-50) were investigated. The clinical features of SB (algic syndrome, myogenic disorders, temporomandibular disorders, dental wear, psychoemotional disorders, sleep quality alterations) were also investigated. Results: The expression of emotional stress in patients of various ages was almost identical. The highest clenching frequency and duration, as well as a higher clinical expression of sleep bruxism was observed in patients under 35. The components of the algic syndrome show a varied expression for different age groups -patients under 35 had more severe disorders of the nocturnal episodes and myogenic-spastic events; older patients (35-50) were characterized by a prevalence of local and diffuse myogenic structural disorders, arthrogenic pain and severe sleep disturbances. Conclusion: Electromyography and ultrasonography can reveal important morphofunctional peculiarities of the masticatory muscles that are associated with the severity of SB in patients from different age groups.

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Correlation of stress and muscle activity of patients with different degrees of temporomandibular disorder

Cited by 30 publications

References 38 publications

Cervical spine range of motion, posture and electromyographic activity of masticatory muscles in temporomandibular disorders

Cervical spine range of motion, posture and electromyographic activity of masticatory muscles in temporomandibular disorders

Biofotogrametric and electromyographic analysis in different position in women with temporomandibular disorder.

Manifestation of Sleep Bruxism According to the Age of Patients

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