Physiol Behav 2021 03 24;230:113267. Epub 2020 Nov 24.
Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery School of Medicine of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto (SP), 14049-900, Brazil; Craniofacial Research Support Center, University of São Paulo - USP, Ribeirão Preto (SP), Brazil. Electronic address:
The treatment of a complex temporomandibular disorder (TMD), such as disk displacement with reduction (DDR) associated with arthralgia and myalgia, may depends on understanding the impairments in muscle function. The aim of this study was to investigate the behavior of the anterior temporalis, masseter and sternocleidomastoid muscles in the time and frequency domains during chewing in patients with chronic painful TMD-DDR using electromyographic (EMG) analysis. Thirty-three patients who met the diagnostic criteria for TMD and 32 volunteers without TMD (control group) underwent clinical examination, chewing pattern classification and EMG analysis. Read More