External location of the buccinator muscle to facilitate electromyographic analysis
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Undergraduate course
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Abstract
Electromyography is frequently used to measure the activity of masticatory muscles. It requires the precise setting of the electrodes, which demands the accurate location of the muscle to be evaluated. The purpose of this study was to investigate the accuracy of an external method to locate the buccinator muscle. Fifteen human cadavers were evaluated and planes were etermined on the face using anatomic landmarks. An angle (α) was obtained at the intersection of these planes on the central point of buccinator muscle and measured with a protractor. The value of the angle allows locating the central point of buccinator muscle based on anatomic landmarks on the face. Statistical analysis of the collected data indicated an angle of 90° with 95% reliability, thus proving the efficacy of the proposed method.
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Keywords
Buccinator muscle , Electromyography , Facial muscles , cadaver , cephalometry , cheek , electrode , electromyography , face muscle , histology , human , instrumentation , methodology , Cadaver , Cephalometry , Cheek , Electrodes , Facial Muscles , Humans
Language
English
Citation
Brazilian Dental Journal, v. 19, n. 2, p. 130-133, 2008.
