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Investigating activity of masticatory muscles in patients with hypermobile temporomandibular joints by using EMG

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Investigating activity of masticatory muscles in patients with hypermobile temporomandibular joints by using EMG

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dc.contributor.author Davoudi, Amin es
dc.contributor.author Haghigaht, Abbas es
dc.contributor.author Rybalov, Oleg es
dc.contributor.author Shadmehr, Elham es
dc.contributor.author Hatami, Amin es
dc.date.accessioned 2015-06-29T11:46:26Z
dc.date.available 2015-06-29T11:46:26Z
dc.date.issued 2015 es
dc.identifier.citation Davoudi, Amin ; Haghigaht, Abbas ; Rybalov, Oleg ; Shadmehr, Elham ; Hatami, Amin. Investigating activity of masticatory muscles in patients with hypermobile temporomandibular joints by using EMG. En: Journal of Clinical and Experimental Dentistry, 2015, Vol. 7, No. 2: 310-315 es
dc.identifier.uri http://hdl.handle.net/10550/44854
dc.description.abstract Background: Temporomandibular joint hypermobility (TMJH) can manifest higher range of motions in mandible. The aim of this study was to investigate and compare the activity of masticatory muscle of TMJs in healthy individuals and patients with mild, moderate and severe TMJH. Material and Methods: In this clinical study, 69 patients (between the ages of 22 to 42) with manifestation of TMJH were included. The patients were divided into three groups based on their maximum mouth opening (MMO): (light) with MMO of 50-55 mm; (moderate) with MMO between 55 to 65 mm; and (severe) with MMO >65 mm. Also, 20 healthy people with profiled tomography in the last 6 months were invited as control group (healthy) with normal MMO (<50 mm). All the groups subjected to electromyogram (EMG) in 2 steps: maximal voluntary clenching (MVC) of the jaws; and during chewing of bread by using one side of the jaws voluntary. The collected data were analyzed by Student T-test and Chi-Square tests using SPSS software version 15 at significant level of 0.05. Results: Both TMJs of light, moderate and severe groups showed significant differences in frequency, time of activity and rest in comparison with healthy group during chewing and MVC (all p values < 0.01). Conclusions: Masticatory muscles activity reduced in relation with the severity of TMJH and higher excessive mouth opening. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Investigating activity of masticatory muscles in patients with hypermobile temporomandibular joints by using EMG es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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