Abstract
Twenty patients with mandibular dysfunction, 10 acute and 10 chronic, were trained with electromyographic biofeedback from either m. masseter or m. frontalis area. The electromyographic activity in both muscle areas were recorded during six training sessions. The mean electromyographic activity decreased significantly within the sessions for both muscle areas, progressively more often for the m. masseter area. The activity did not decrease significantly between sessions for any muscle area. The clinical and subjective symptoms of mandibular dysfunction improved significantly after the training. No differences, electromyographically or clinically, among acute, chronic, m. masseter area, or m. frontalis area feedback patients could be observed. No correlation between decrease in electromyographic activity and symptoms could be established. Since a simplistic neuromuscular learning model for biofeedback training gains little support from these results, alternative views are discussed.
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This research was supported by grants to Sven G. Carlsson and Elliot N. Gale from the Swedish Council for Research in the Humanities and Social Sciences.
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Dahlström, L., Carlsson, S.G., Gale, E.N. et al. Clinical and electromyographic effects of biofeedback training in mandibular dysfunction. Biofeedback and Self-Regulation 9, 37–47 (1984). https://doi.org/10.1007/BF00998844
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DOI: https://doi.org/10.1007/BF00998844