Influence of dynamic electrical neurostimulation on the functional state of the masticatory muscles in the treatment of patients with temporomandibular joint pain dysfunction syndrome

Objective: to determine the effectiveness of dynamic electrical stimulation on the functional state of the masticatory muscles in patients with temporomandibular joint pain dysfunction syndrome. Material and methods. The study involved 60 people aged 25 to 60 years with temporomandibular joint pain dysfunction syndrome, who were divided into two groups of 30 people. Patients of the first group underwent dynamic electrical nerve stimulation in the area of pain complaints, and patients of the second group also in the projection of the trigeminal nerve exit on the face. Electromyographic examination of the masticatory muscles and completion of the McGill pain questionnaire as modified by V.V. Kuzmenko et al. before and after exposure to dynamic electrical nerve stimulation were performed by all patients. Results. All patients showed a significant improvement in the condition of the masticatory and temporal muscles according to electromyography p<0.001 in all measurements, the inclusion of additional zones did not statistically affect the improvement in the condition According to the pain questionnaire, the treatment results improved in both groups (p<0.001), M±m=10.7±0.89 points and M±m=5.87±0.81 points before and after treatment in the group1, M±m=10.83±0.86 and M±m=5.73±0.65 points before and after treatment in the group 2. When comparing results between groups, there were no significant differences. Conclusion. Dynamic electrical neurostimulation has a positive clinical effect on the functional state of the masticatory and temporal muscles after just one session.