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An in vivo electromyographic evaluation of pain relief using different therapies in masticatory myalgia patients

Journal of the Korean Association of Oral and Maxillofacial Surgeons / Journal of the Korean Association of Oral and Maxillofacial Surgeons, (P)2234-7550; (E)2234-5930
2020, v.46 no.5, pp.321-327
https://doi.org/10.5125/jkaoms.2020.46.5.321
Parvathi K. Balakrishnan (AB Shetty Memorial Institute of Dental Sciences)
Sowmya M. Kumar (AB Shetty Memorial Institute of Dental Sciences)
Purushotham Chippala (Nitte (Deemed to be University))
Chethan Hegde (AB Shetty Memorial Institute of Dental Sciences)

Abstract

Objectives: This study is aimed to evaluate and compare the effect of moist heat fomentation therapy with ultrasound therapy in patients with the masticatory myalgia. Materials and Methods: The study was conducted on 42 patients with masticatory myalgia, dividing them into two groups; Group A (21 patients), received moist heat therapy and Group B (21 patients), received ultrasound therapy for seven effective days. Prior and after the treatment the numeric rating scale (NRS) and the electromyography (EMG) scores were recorded and compared. The observations were analyzed clinically and statistical support was taken to assess the NRS and EMG data. Results: Irrespective of the groups, patients testified a significant reduction in pain after the treatment. From the EMG readings; even though the standard deviation for each group was varied considerably, EMG recorded an improved muscle activity. Statistical analysis was used to assess and identify the best treatment methodology between the two modalities. Conclusion: From the statistical analysis, it is concluded that, though both the therapies had significantly reduced the symptomatic response, it is moist heat fomentation that improved muscle activity both statistically and clinically in comparison to ultrasound.

keywords
Temporomandibular disorder, Therapeutic ultrasound, Surface electromyography, Moist, Heat

Journal of the Korean Association of Oral and Maxillofacial Surgeons