[DOWNLOAD] "Mastication, EMG Activity and Occlusal Contact Area in Subjects with Different Facial Types (Clinical Practice) (Electromyography) (Report)" by CRANIO: The Journal of Craniomandibular Practice * Book PDF Kindle ePub Free

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eBook details

• Title: Mastication, EMG Activity and Occlusal Contact Area in Subjects with Different Facial Types (Clinical Practice) (Electromyography) (Report)
• Author : CRANIO: The Journal of Craniomandibular Practice
• Release Date : January 01, 2010
• Genre: Engineering,Books,Professional & Technical,
• Pages : * pages
• Size : 212 KB

Description

ABSTRACT: Dentofacial morphology may affect orofacial functions, therefore the aim of the current study was to evaluate the influence of craniofacial morphology on masticatory function, occlusal contact area (OCA), and masticatory muscles activity. Seventy-eight (78) subjects were divided into three groups according to vertical facial pattern: 1. mesofacial; 2. brachyfacial; and 3. dolichofacial. Artificial material and the sieving method were used to access masticatory efficiency (ME). OCA was determined by registration of posterior teeth. Electromyographic (EMG) activity of the masseter and anterior temporal (AT) muscles was accessed bilaterally at rest and at maximal vertical clenching (MVC). ME (%) was significantly higher in brachyfacial and lower in dolichofacial subjects. Brachyfacials presented the highest OCA ([mm.sup.2]) followed by meso and dolichofacial subjects. The EMG of the masseter and AT at rest and at MVC showed that dolichofacial subjects presented the lowest activity values, while brachyfacial subjects presented significantly higher measurements. Craniofacial morphology affected masticatory function, OCA, and EMG activity of the masticatory muscles. **********

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