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Tooth contact patterns and contractile activity of the elevator jaw muscles during mastication of two different types of food
Author(s) -
MOHAMED S. E.,
CHRISTENSEN L. V.,
HARRISON J. D.
Publication year - 1983
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1983.tb00103.x
Subject(s) - mastication , electromyography , masticatory force , mandible (arthropod mouthpart) , sagittal plane , molar , orthodontics , anatomy , medicine , dentistry , biology , physical medicine and rehabilitation , botany , genus
Summary The pattern of molar and canine contacts and the contractile activity of the masseter and anterior temporal muscle were studied, through integrated electromyography, during right‐sided mastication of banana and apple in ten healthy male subjects. Tooth contacts occurred on both the chewing and the non‐chewing side. This study does not support the clinical concept that non‐chewing side contacts are necessarily detrimental to the jaw muscles and the temporomandibular joints. The activity of the elevator jaw muscles and the tooth contact patterns suggest that the mandible tilted around a sagittal axis, and rotated around a vertical axis, during the phase of elevation of a masticatory cycle.