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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

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.citation	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.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.title	Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants	es
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::CIENCIAS MÉDICAS	es
dc.identifier.doi	10.4317/medoral.21659	es
dc.type.hasVersion	VoR	es_ES