Analysys of Mandibular Rotation during Chewing Movements
نویسندگان
چکیده
منابع مشابه
Instantaneous rotation axes during active head movements.
Rotation axes were calculated during active head movements using a motion analysis system. The mean rotation axis for 1 Hz head pitch when seated was posterior (6 mm) and inferior (21 mm) to the interaural axis, shifting 16 mm downwards when standing. During seated 2 Hz head pitch the rotation axis was close to the interaural axis, shifting downwards 15 mm when standing. This downward shift sug...
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It has been shown that articulator movements during speech are adjusted along a number of spatiotemporal dimensions. For example, variations in the extent of lip, jaw, or tongue motion are associated with proportional changes in the respective articulators' peak velocity. Modifications in the timing of lip and jaw actions are apparently constrained, exhibiting relative timing covariation. Sylla...
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AIM The aim of this study was to find out the nature of occlusion and tooth contact during various eccentric mandibular movements in young adults with class I occlusion. MATERIALS AND METHODS The sample consisted of 100 young adults with class I occlusion with full complement of teeth. Anterior disclusion in centric occlusion was demonstrated using a shim stock interposed between the upper an...
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The aim of this study was to evaluate whether patients with hyposalivation present damaged mastication or mandibular movements during speech. Forty subjects composed 2 groups: control and hyposalivation. Masticatory performance was assessed with a silicon-based artificial material and a 10-sieve method. Mandibular movements during speech were observed with a 3D jaw-tracking device. Data were an...
متن کاملMental rotation is suppressed during saccadic eye movements.
We examined whether mental rotation is suppressed during saccadic eye movements. Subjects judged whether a character was normal or mirror-reversed while making no, short, or long saccades. Reaction time was longer under saccade than under no-saccade conditions and was longer when a long saccade rather than a short saccade was made, but only when the characters varied in orientation. These resul...
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ژورنال
عنوان ژورنال: Proceeding of Japanese Society of Stomatognathic Function
سال: 1993
ISSN: 2185-4963,0911-8721
DOI: 10.7144/sgf1982.11.51