Standardized mastication increases the coordination in masticatory activity in women with chronic temporomandibular joint disorders: a case control study
| Autor: | Carlos Eduardo Fassicollo, Daiane Lazzeri de Medeiros, Lilian Gerdi Kittel Ries, Maylli Daiani Graciosa, Licerry Palma Soares, Luis Mochizuki |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Manual Therapy, Posturology & Rehabilitation Journal. :1-7 |
| ISSN: | 2236-5435 1677-5937 |
| DOI: | 10.17784/mtprehabjournal.2019.17.731 |
| Popis: | Background: The effects of jaw movement pattern on masticatory activity during chewing remains unclear in chronic temporomandibular joint disorders individuals. Objective: to assess the effect of habitual and non-habitual mastication patterns based upon the activation of the masseter and temporalis muscles in individuals with or without temporomandibular joint disorder (TMJD). Methods: Fifty-four participants (age: 18–44 years) were divided into two groups: the TMJD (n=27) and control (n=27) groups. TMJD was identified using the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). Electromyographic activity of the masticatory muscles was measured during 2 tasks: habitual mastication with parafilm (HM) and non-habitual mastication with parafilm (NHM). MATLAB software was used to process electromyography (EMG) signals. The root mean square, symmetry index (SI%), anteroposterior coefficient (APC%) and torque coefficient (TC%) were determined from the processed EMG signal. Results: Reduced right masseter activation was observed for the TMJD group (p |
| Databáze: | OpenAIRE |
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