External location of the buccinator muscle to facilitate electromyographic analysis

Brazilian Dental Journal

Regina Helena Barbosa Tavares Da Silva²  Hélio Ferraz Porciúncula¹  Renata Savastano Ribeiro Jardini¹  Ana Paula Gonçalves Pita²  Ana Paula Dias Ribeiro² 

[1] ,São Paulo State University Dental School of Araraquara Department of Dental Materials and ProsthodonticsAraraquara SP ,Brazil

关键词: facial muscles;    buccinator muscle;    electromyography;   

DOI  :  10.1590/S0103-64402008000200008

来源: SciELO

【 摘 要 】

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 determined on the face using anatomic landmarks. An angle (a) 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 90º with 95% reliability, thus proving the efficacy of the proposed method.

【 授权许可】

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