Masticatory muscle activity evaluation by electromyography in subjects with zygomatic implants
| Autor: | de Lima-Lucas B, de Rossi M, Lígia Franco Oliveira, Hallak-Regalo Sc, Selma Siéssere, Miglioranca R, Bersani Eo, Marisa Semprini, Carla Moreto Santos, Marcelo Palinkas, Hallak-Regalo I |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_treatment Dentistry Temporal Muscle Electromyography Temporal muscle Masseter muscle 03 medical and health sciences 0302 clinical medicine stomatognathic system 0502 economics and business medicine IMPLANTES DENTÁRIOS Humans General Dentistry Aged Zygoma medicine.diagnostic_test business.industry Masseter Muscle Research 05 social sciences 030206 dentistry Middle Aged CIENCIAS MÉDICAS [UNESCO] Masticatory force Orofacial Pain-TMJD stomatognathic diseases Stomatognathic system Otorhinolaryngology Zygomatic bone Laterality UNESCO::CIENCIAS MÉDICAS 050211 marketing Surgery Female Dental Prosthesis Implant-Supported Dentures business |
| Zdroj: | Medicina Oral, Patología Oral y Cirugía Bucal Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP 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 RODERIC. Repositorio Institucional de la Universitat de Valéncia instname |
| ISSN: | 1698-6946 1698-4447 |
| Popis: | Background 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. Material and Methods 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. Results 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. Conclusions 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. Key words:Zygomatic implant, electromyography, masseter muscle, temporal muscle. |
| Databáze: | OpenAIRE |
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