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Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study

Identifieur interne : 005385 ( Main/Exploration ); précédent : 005384; suivant : 005386

Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study

Auteurs : T. Iida ; M. Kato [Japon] ; O. Komiyama ; H. Suzuki ; T. Asano ; T. Kuroki ; T. Kaneda [Japon] ; P. Svensson [Danemark] ; M. Kawara

Source :

European Journal of Oral Sciences [ 0909-8836 ] ; 2010-12.

RBID : ISTEX:70244DBE5D4548C76D929B87C34BC6ECD4E6D022

English descriptors

Abstract

Iida T, Kato M, Komiyama O, Suzuki H, Asano T, Kuroki T, Kaneda T, Svensson P, Kawara M. Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study.   Eur J Oral Sci 2010; 118: 635–641. © 2010 Eur J Oral Sci Using functional magnetic resonance imaging (fMRI), we compared the cerebral activity during bilateral light fist‐clenching and light‐teeth clenching to provide more information on the central processing mechanisms underlying awake bruxism. Fourteen subjects participated in our study. Statistical comparisons were used to identify brain regions with significant activation in the subtraction of light fist clenching and light teeth clenching activity minus baseline. Participants also evaluated the perceived effort of clenching for each task, using a visual analogue scale of 0–100, after fMRI was performed. Bilateral light fist‐clenching significantly activated the bilateral sensorimotor cortex, while light teeth‐clenching was significantly associated with activation of the bilateral sensorimotor cortex, supplementary motor area, dorsolateral prefrontal cortex, and posterior parietal cortex. The VAS scores for fist clenching and teeth clenching were not significantly different. As light teeth‐clenching activates a more extensive cortical network compared with light fist‐clenching, we suggest that the teeth clenching may induce a more complex cerebral activity compared with the performance of a hand motor task. The clinical significance of these findings remains unknown but could perhaps be related to the propensity to trigger awake bruxism.

Url:

https://api.istex.fr/document/70244DBE5D4548C76D929B87C34BC6ECD4E6D022/fulltext/pdf

DOI: 10.1111/j.1600-0722.2010.00784.x

Affiliations:

Danemark, Japon

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Awake bruxism</term>
<term>Axial plane</term>
<term>Axial planes</term>
<term>Bilateral</term>
<term>Bilateral commands</term>
<term>Bilateral dlpfc</term>
<term>Bilateral light</term>
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<term>Brain mapp</term>
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<term>Bilateral sensorimotor cortex</term>
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<term>Bold response</term>
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<term>Brain activity</term>
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<term>Brain regions</term>
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<term>Central processing mechanisms</term>
<term>Cerebral activation</term>
<term>Cerebral activity</term>
<term>Clenching</term>
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<term>Corresponding joints</term>
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<term>Direct comparison</term>
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<front><div type="abstract" xml:lang="en">Iida T, Kato M, Komiyama O, Suzuki H, Asano T, Kuroki T, Kaneda T, Svensson P, Kawara M. Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study.   Eur J Oral Sci 2010; 118: 635–641. © 2010 Eur J Oral Sci Using functional magnetic resonance imaging (fMRI), we compared the cerebral activity during bilateral light fist‐clenching and light‐teeth clenching to provide more information on the central processing mechanisms underlying awake bruxism. Fourteen subjects participated in our study. Statistical comparisons were used to identify brain regions with significant activation in the subtraction of light fist clenching and light teeth clenching activity minus baseline. Participants also evaluated the perceived effort of clenching for each task, using a visual analogue scale of 0–100, after fMRI was performed. Bilateral light fist‐clenching significantly activated the bilateral sensorimotor cortex, while light teeth‐clenching was significantly associated with activation of the bilateral sensorimotor cortex, supplementary motor area, dorsolateral prefrontal cortex, and posterior parietal cortex. The VAS scores for fist clenching and teeth clenching were not significantly different. As light teeth‐clenching activates a more extensive cortical network compared with light fist‐clenching, we suggest that the teeth clenching may induce a more complex cerebral activity compared with the performance of a hand motor task. The clinical significance of these findings remains unknown but could perhaps be related to the propensity to trigger awake bruxism.</div>
</front>
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Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study

Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study

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