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SEMG activity of jaw‐closing muscles during biting with different unilateral occlusal supports

Identifieur interne : 005044 ( Main/Exploration ); précédent : 005043; suivant : 005045

SEMG activity of jaw‐closing muscles during biting with different unilateral occlusal supports

Auteurs : M. Wang [République populaire de Chine] ; J. He [République populaire de Chine] ; J. Zhang [République populaire de Chine] ; K. Wang ; P. Svensson [Danemark] ; S. E. Widmalm [République populaire de Chine]

Source :

Journal of Oral Rehabilitation [ 0305-182X ] ; 2010-09.

RBID : ISTEX:FD1B2D0708AF1224537A6425F217F146B706C65F

English descriptors

Abstract

Summary The aim of this study was to test the hypothesis that experimental and reversible changes of occlusion affect the levels of surface electromyographic (SEMG) activity in the anterior temporalis and masseter areas during unilateral maximal voluntary biting (MVB) in centric and eccentric position. Changes were achieved by letting 21 healthy subjects bite with and without a cotton roll between the teeth. The placement alternated between sides and between premolar and molar areas. The SEMG activity level was lower when biting in eccentric position without than with a cotton roll between teeth (P < 0·043). It was always lower with premolar than with molar support when biting with a cotton roll (P < 0·013). In the anterior temporalis areas, the SEMG activity was always lower on the balancing than on the working side (P < 0·001). Such a difference was also found in the masseter areas but only during molar‐supported centric biting (P = 0·024). No differences were found when comparing the SEMG levels in masseter areas between centric and eccentric biting (P > 0·05). In the anterior temporalis area, the balancing side SEMG activity was lower in eccentric than in centric but only in molar‐supported biting (P = 0·026). These results support that the masseter and anterior temporalis muscles have different roles in keeping the mandible in balance during unilateral supported MVB. Changes in occlusal stability achieved by biting with versus without a cotton roll were found to affect the SEMG activity levels.

Url:

https://api.istex.fr/document/FD1B2D0708AF1224537A6425F217F146B706C65F/fulltext/pdf

DOI: 10.1111/j.1365-2842.2010.02104.x

Affiliations:

Danemark, République populaire de Chine

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anterior temporalis</term>
<term>Anterior temporalis areas</term>
<term>Balancing side</term>
<term>Blackwell publishing</term>
<term>Centric</term>
<term>Centric position</term>
<term>Clenching</term>
<term>Cotton roll</term>
<term>Cotton rolls</term>
<term>Dent</term>
<term>Eccentric position</term>
<term>Eccentric positions</term>
<term>Elevator muscles</term>
<term>Healthy subjects</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Mandibular position</term>
<term>Masseter</term>
<term>Masseter areas</term>
<term>Masticatory</term>
<term>Masticatory muscles</term>
<term>Medical university</term>
<term>Molar</term>
<term>Molar area</term>
<term>Molar areas</term>
<term>Molar support</term>
<term>Muscle activity</term>
<term>Muscle semg activity</term>
<term>Occlusal</term>
<term>Occlusal contacts</term>
<term>Occlusal stability</term>
<term>Oral anatomy</term>
<term>Oral rehabil</term>
<term>Premolar</term>
<term>Premolar area</term>
<term>Prosthet dent</term>
<term>Rehabil</term>
<term>Semg</term>
<term>Semg activity</term>
<term>Semg levels</term>
<term>Semg recordings</term>
<term>Shanxi province</term>
<term>Surface electrodes</term>
<term>Temporalis</term>
<term>Temporalis area</term>
<term>Temporomandibular</term>
<term>Temporomandibular disorders</term>
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<term>Anterior temporalis areas</term>
<term>Balancing side</term>
<term>Blackwell publishing</term>
<term>Centric</term>
<term>Centric position</term>
<term>Clenching</term>
<term>Cotton roll</term>
<term>Cotton rolls</term>
<term>Dent</term>
<term>Eccentric position</term>
<term>Eccentric positions</term>
<term>Elevator muscles</term>
<term>Healthy subjects</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Mandibular position</term>
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<term>Masseter areas</term>
<term>Masticatory</term>
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<term>Occlusal contacts</term>
<term>Occlusal stability</term>
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<term>Oral rehabil</term>
<term>Premolar</term>
<term>Premolar area</term>
<term>Prosthet dent</term>
<term>Rehabil</term>
<term>Semg</term>
<term>Semg activity</term>
<term>Semg levels</term>
<term>Semg recordings</term>
<term>Shanxi province</term>
<term>Surface electrodes</term>
<term>Temporalis</term>
<term>Temporalis area</term>
<term>Temporomandibular</term>
<term>Temporomandibular disorders</term>
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<front><div type="abstract">Summary  The aim of this study was to test the hypothesis that experimental and reversible changes of occlusion affect the levels of surface electromyographic (SEMG) activity in the anterior temporalis and masseter areas during unilateral maximal voluntary biting (MVB) in centric and eccentric position. Changes were achieved by letting 21 healthy subjects bite with and without a cotton roll between the teeth. The placement alternated between sides and between premolar and molar areas. The SEMG activity level was lower when biting in eccentric position without than with a cotton roll between teeth (P < 0·043). It was always lower with premolar than with molar support when biting with a cotton roll (P < 0·013). In the anterior temporalis areas, the SEMG activity was always lower on the balancing than on the working side (P < 0·001). Such a difference was also found in the masseter areas but only during molar‐supported centric biting (P = 0·024). No differences were found when comparing the SEMG levels in masseter areas between centric and eccentric biting (P > 0·05). In the anterior temporalis area, the balancing side SEMG activity was lower in eccentric than in centric but only in molar‐supported biting (P = 0·026). These results support that the masseter and anterior temporalis muscles have different roles in keeping the mandible in balance during unilateral supported MVB. Changes in occlusal stability achieved by biting with versus without a cotton roll were found to affect the SEMG activity levels.</div>
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SEMG activity of jaw‐closing muscles during biting with different unilateral occlusal supports

SEMG activity of jaw‐closing muscles during biting with different unilateral occlusal supports

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri