Influence of altered occlusal guidance on masticatory muscle activity during clenching.

Influence of altered occlusal guidance on masticatory muscle activity during clenching. Research Abstract Details 

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Influence of altered occlusal guidance on masticatory muscle activity during clenching. Abstract Text:

N Okano,K Baba,Y Igarashi,

This study investigated the influence of experimentally altered occlusal guidance on masticatory muscle activity. Twenty healthy human subjects (15 males and five females with an average age of 26.5 years) volunteered to participate in this study. Metallic occlusal overlays were fabricated for the lower working side canine and overlaid on the second molar and the non-working side second molar to simulate a canine-protected occlusion, group function occlusion and bilateral balanced occlusion. Electromyography (EMG) activities in the bilateral masseter, anterior and posterior temporalis were recorded during maximal clenching. The experimental occlusal pattern revealed to have statistically significant effects on EMG activity. As the most characteristic change, EMG activity in the anterior temporalis significantly increased in the simulated group function occlusion and the simulated bilateral balanced occlusion compared with the simulated cuspid protected occlusion. The increased teeth contacts to the posterior region altered the unilateral pattern of the anterior temporalis activity to the bilateral pattern, while that of masseter activity remained unchanged.

Influence of altered occlusal guidance on masticatory muscle activity during clenching. Publishing Authors By Initials

N Okano,K Baba,Y Igarashi,

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Influence of altered occlusal guidance on masticatory muscle activity during clenching. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of oral rehabilitation

VOLUME: 34

Page Numbers: 679-84

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ISSN: 0305-182X

DAY: 24

MONTH: Sep

YEAR: 2007

Influence of altered occlusal guidance on masticatory muscle activity during clenching. Information

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LANGUAGE: eng

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AFFILIATION: Removable Prosthodontics, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo 113-8549, Japan. n.okano.rpro@tmd.ac.jp

Country: England

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MEDLINETA: J Oral Rehabil

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