Electromyographic evaluation of neuromuscular coordination of subject after orthodontic intervention

Cranio : the Journal of Craniomandibular Practice
André Luís BotelhoMarco Antonio Moreira Rodrigues da Silva


The aim of this work was to investigate the neuromuscular changes associated with the orthodontic post-treatment using surface electromyography. One hundred (100) young, healthy adults without signs and symptoms of temporomandibular dysfunction (TMD) were divided into two groups: 60 subjects who were undergoing orthodontic intervention (Ortho Group) and 40 subjects who had no orthodontic intervention (Control Group), aged 18-25 years. EMG activity of masseter and temporalis anterior muscle was recorded during two different tests: 1. maximum voluntary clench (MVC) with cotton rolls; and 2. MVC in intercuspal position. In all subjects, both tests were performed with symmetric muscular patterns (more than 85%) and with insignificant latero-deviating of the mandible (lower than 10%). There are no statistically significant differences between the subjects of both groups evaluated. Both groups showed medium index values calculated according to the normal standards established previously.


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Jul 9, 2004·Journal of Dentistry·Virgilio F FerrarioGianluca M Tartaglia
Jun 29, 2006·The Journal of the American Dental Association·Gary D Klasser, Jeffrey P Okeson
Aug 25, 2007·Journal of Oral Rehabilitation·T I Suvinen, P Kemppainen

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Oct 25, 2013·BMC Oral Health·Chiara MasciAnnalisa Monaco
Nov 20, 2012·Cranio : the Journal of Craniomandibular Practice·Marco Antônio Moreira Rodrigues da SilvaAna Maria Bettoni Rodrigues da Silva

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