Orofacial myofunctional changes and electromyographic activity of the orbicularis oris muscle in trombonists

• Autor(a) principal: Moura,Ana Paula Arruda de
• Data de Publicação: 2021
• Outros Autores: Lima,Jully Anne Soares de, Amarante,Eduarda de Lima, Almeida,Larissa Nadjara Alves, Pessoa,Luciane Spinelli de Figueirêdo, Pernambuco,Leandro de Araújo, Alves,Giorvan Ânderson dos Santos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista CEFAC (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-18462021000100506
• topic: Stomatognathic System; Musicians; Electromyography; Facial Muscles

ABSTRACT Objective: to analyze whether trombonists present orofacial myofunctional changes and compare the electrical activity of the orbicularis oris muscle before and after playing their instrument. Methods: an observational, descriptive, and cross-sectional study. The sample consisted of 20 university trombonists. Data collection involved three steps: application of a questionnaire investigating some peculiarities of trombonists (Orofacial Myofunctional Evaluation with Expanded Scores - OMES-E), and electromyographic analysis of the orbicularis oris muscle before and after performing a piece with the trombone. The mean, standard deviation, frequency, and percentage were calculated, and the paired Student’s t test was used to compare the means of the electromyographic records before and after playing the trombone, at a 5% significance. Results: seventy per cent of trombonists reported some symptom of orofacial myofunctional alteration, namely, muscle compensations, tension, and pain. The myofunctional evaluation showed a mild change in cheek volume (90%) and labial commissure asymmetry (60%). The electrical activity of the lower orbicularis oris muscle decreased significantly after the trombone practice (p = 0.04), while that of the superior orbicularis oris muscle remained unchanged. Conclusion:trombonists show clinical and self-reported oromyofunctional changes as well as decreased electrical activity of the lower orbicularis oris muscle, after playing the trombone.