Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants
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Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants

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Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants

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dc.contributor.author de Rossi, Moara es
dc.contributor.author Palinkas, Marcelo es
dc.contributor.author Lucas, Bárbara es
dc.contributor.author Santos, Carla es
dc.contributor.author Semprini, Marisa es
dc.contributor.author Oliveira, Ligia es
dc.contributor.author Regalo, Isabela es
dc.contributor.author Bersani, Edmilson es
dc.contributor.author Migliorança, Reginaldo es
dc.contributor.author Siéssere, Selma es
dc.contributor.author Regalo, Simone es
dc.date.accessioned 2017-07-24T09:29:06Z
dc.date.available 2017-07-24T09:29:06Z
dc.date.issued 2017 es
dc.identifier.uri http://hdl.handle.net/10550/59856
dc.description.abstract Zygomatic implants are an alternative treatment in the rehabilitation of atrophic maxilla to promote stability in the stomatognathic system. The aim of this study was to compare the electromyographic (EMG) activity of masseter and temporalis muscles in controls and in individuals with complete implant-supported dentures anchored in the zygomatic bone. Fifty-four volunteers of both genders (mean age 52.5 years) were selected and distributed into two groups: Individuals with zygomatic implant (ZIG; n=27) and fully dentate patients (CG; n=27). MyoSystem-BR1 was used to assess masseter and temporalis muscles EMG activity in different mandibular movements: protrusion, clenching, maximal voluntary contraction (MVC) with Parafilm M®, right and left laterality and chewing (peanuts and raisins). Data was processed, normalized (MVC) and analyzed using the SPSS 21.0. Student t-test (P ? 0.05) was used for group comparison. The results were statistically significant (P ? 0.05) for protrusion, clenching, right and left laterality and raisin chewing. For the mandibular posture conditions, the ZIG obtained higher EMG activity patterns when compared to CG. For the masticatory performance during chewing of peanuts and raisins, the ZIG showed higher EMG mean values when compared to CG. The zygomatic implant promoted an active response of the muscle fibers (hyperactivity) during both mandibular posture and chewing conditions, probably due to the absence of periodontal receptors, which play a significant role for preparing a bolus for swallowing. es
dc.source de Rossi, Moara ; Palinkas, Marcelo ; Lucas, Bárbara ; Santos, Carla ; Semprini, Marisa ; Oliveira, Ligia ; Regalo, Isabela ; Bersani, Edmilson ; Migliorança, Reginaldo ; Siéssere, Selma ; Regalo, Simone. Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 22 3 2017: 18- es
dc.title Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants es
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/medoral.21659 es

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