Impaired orofacial motor functions on chronic temporomandibular disorders
| Autor: | Cláudia Lúcia Pimenta Ferreira, Bárbara Cristina Zanandréa Machado, Chiarella Sforza, Cláudia Maria de Felício, Marco Antonio Moreira Rodrigues da Silva, Carina Giovana Pissinatti Borges |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
Male medicine.medical_specialty medicine.medical_treatment Biophysics Neuroscience (miscellaneous) Temporal Muscle Signs and symptoms Electromyography Physical medicine and rehabilitation Surveys and Questionnaires medicine Humans In patient Mastication Rehabilitation medicine.diagnostic_test Masseter Muscle business.industry Healthy subjects Chronic pain Motor control Middle Aged Temporomandibular Joint Disorders medicine.disease stomatognathic diseases Case-Control Studies Female Neurology (clinical) business |
| Zdroj: | Journal of Electromyography and Kinesiology. 24:565-571 |
| ISSN: | 1050-6411 |
| Popis: | Because temporomandibular disorders (TMDs) rehabilitation continues to be a challenge, a more comprehensive picture of the orofacial functions in patients with chronic pain is required. This study assessed the orofacial functions, including surface electromyography (EMG) of dynamic rhythmic activities, in patients with moderate-severe signs and symptoms of chronic TMD. It was hypothesized that orofacial motor control differs between patients with moderate-severe chronic TMD and healthy subjects. Seventy-six subjects (46 with TMD and 30 control) answered questionnaires of severity of TMD and chewing difficulties. Orofacial functions and EMG during chewing were assessed. Standardized EMG indices were obtained by quantitative analysis of the differential EMG signals of the paired masseter and temporal muscles, and used to describe muscular action during chewing. TMD patients showed significant greater difficulty in chewing; worse orofacial scores; longer time for free mastication; a less accurate recruitment of the muscles on the working and balancing sides, reduced symmetrical mastication index (SMI) and increased standardized activity during EMG test than healthy subjects. SMI, TMD severity and orofacial myofunctional scores were correlated (P |
| Databáze: | OpenAIRE |
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