scholarly journals Comparative Study of VDR and the Electrical Activity of the Anterior Temporal and Masseter Muscles using Physiologic rest Position, Phonetics and Swallowing methods

2015 ◽  
Vol 8 (2) ◽  
pp. 1209-1214
Author(s):  
SHIRIN LAVAF ◽  
ARASH PAKRAVAN
Keyword(s):  
Comparative Study ◽  
Electrical Activity ◽  
Rest Position ◽  
Masseter Muscles

scholarly journals The Electrical Activity of the Temporal and Masseter Muscles in Patients with TMD and Unilateral Posterior Crossbite

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Krzysztof Woźniak ◽  
Liliana Szyszka-Sommerfeld ◽  
Damian Lichota
Keyword(s):  
Electrical Activity ◽  
Muscle Activity ◽  
Maximum Voluntary Contraction ◽  
Voluntary Contraction ◽  
Asymmetry Index ◽  
Subjective Symptoms ◽  
Posterior Crossbite ◽  
Rest Position ◽  
Torque Coefficient ◽  
Masseter Muscles

The aim of this study was to assess the influence of unilateral posterior crossbite on the electrical activity of the temporal and masseter muscles in patients with subjective symptoms of temporomandibular dysfunctions (TMD). The sample consisted of 50 patients (22 female and 28 male) aged 18.4 to 26.3 years (mean 20.84, SD 1.14) with subjective symptoms of TMD and unilateral posterior crossbite malocclusion and 100 patients without subjective symptoms of TMD and malocclusion (54 female and 46 male) aged between 18.4 and 28.7 years (mean 21.42, SD 1.06). The anamnestic interviews were conducted according to a three-point anamnestic index of temporomandibular dysfunction (Ai). Electromyographical (EMG) recordings were performed using a DAB-Bluetooth Instrument (Zebris Medical GmbH, Germany). Recordings were carried out in the mandibular rest position and during maximum voluntary contraction (MVC). Analysis of the results of the EMG recordings confirmed the influence of unilateral posterior crossbite on variations in spontaneous muscle activity in the mandibular rest position and maximum voluntary contraction. In addition, there was a significant increase in the Asymmetry Index (As) and Torque Coefficient (Tc), responsible for a laterodeviating effect on the mandible caused by unbalanced right and left masseter and temporal muscles.

scholarly journals Masseter muscle surface electromyography in college students with a high degree of anxiety and temporomandibular disorder

Revista CEFAC ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 44-52 ◽  
Author(s):  
Eduarda de Lima Amarante ◽  
Jully Anne Soares de Lima ◽  
Rafael Nóbrega Bandeira ◽  
Ana Paula Arruda de Moura ◽  
Luciane Spinelli de Figueiredo Pessoa ◽  
...  
Keyword(s):  
College Students ◽  
Electrical Activity ◽  
Masseter Muscle ◽  
Speech Therapy ◽  
Temporomandibular Disorder ◽  
P Value ◽  
Voluntary Activity ◽  
Group 2 ◽  
High Degree ◽  
Masseter Muscles

ABSTRACT Objective: to compare the electrical activity of masseter muscles, bilaterally, according to the presence or absence of Temporomandibular Disorder (TMD) in college students with a high degree of anxiety. Methods: the study was conducted with a randomized sample of 31 Speech Therapy students aged between 17 and 32 years; 61.3% (n = 19) were females and 38.7% (n = 12) were males. They were divided into two groups, Group 1 (G1), comprising 11 students with TMD, and Group 2 (G2), composed of 20 students without TMD. The college students answered the State-Trait Anxiety Inventory (STAI) for anxiety investigation, and were evaluated by the protocol Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) for TMD diagnosis. The evaluation of muscular electrical activity took into account the records in the conditions of rest, Sustained Maximum Voluntary Activity (SMVA) and habitual chewing (HC). The data were analyzed using the version 22 IBM Statistical Package for Social Sciences (SPSS) software. The statistical analysis was performed using Student t test to compare means between groups, considering < 0,05 as the significant p-value. Results: college students, of both groups, presented high levels of anxiety traits. Significant statistical differences were observed on the percentage of electrical activity of right masseter muscle in chewing function, as well as muscle fibers recruitment during chewing, which were higher on the group without TMD. Conclusion: college students with TMD and a high degree of anxiety presented lower means of masseter muscle electromyografic activity during chewing, in most conditions assessed, as compared to volunteers without TMD, except for the left masseter muscle in rest and chewing.

scholarly journals Electrical Activity of the Anterior Temporal and Masseter Muscles in Mouth and

2008 ◽  
Vol 74 (4) ◽  
pp. 588-595 ◽  
Author(s):  
Aline Ferla ◽  
Ana Maria Toniolo da Silva ◽  
Eliane Castilhos Rodrigues Corrêa
Keyword(s):  
Electrical Activity ◽  
Masseter Muscles

Mandibular rest position and electrical activity of the masticatory muscles

1997 ◽  
Vol 78 (1) ◽  
pp. 48-53 ◽  
Author(s):  
Ambra Michelotti ◽  
Mauro Farella ◽  
Stefano Vollaro ◽  
Roberto Martina
Keyword(s):  
Electrical Activity ◽  
Masticatory Muscles ◽  
Rest Position
Sign in / Sign up

Export Citation Format

Share Document