Ultrasound assessment of the structure of the masticatory muscles against the background of relief of myofascial pain syndrome

INTRODUCTION . Restricted mouth opening, parafunctional activity of the chewing muscles are a symptom of the development of many dental diseases caused by intra- and extra-articular causes. To verify the diagnosis, it is necessary to conduct an ultrasound examination, according to the assessment of the dynamics of qualitative and semi-quantitative parameters, it is possible to analyze the results of the treatment according to the BOS principle, which was the purpose of this study. AIM . The aim of the study was to conduct an ultrasound assessment of the structure of the masticatory muscles against the background of relief of myofascial pain syndrome. MATERIALS AND METHODS . 104 people were examined and treated, the relief of myofascial pain syndrome was carried out using combined treatment – injections of botulinum toxin type A, cross-taping and ozonation of the chewing muscle. Clinical criteria were evaluated – the intensity and duration of pain, the degree of mouth opening. According to the developed ultrasound criteria, the features of the structure of the masticatory muscles, the presence or absence of trigger points with diameter determination were studied. Using qualitative indicators, the length, width and depth of muscle tissue were studied. RESULTS AND CONCLUSIONS . In patients with myofascial pain syndrome, starting at 14 days and for 6 months, stable positive dynamics was achieved, as evidenced by a statistically significant change in the studied parameters. A correlation was revealed between the degree of mouth opening and changes in the width of the chewing muscles according to the ultrasound method of investigation. The inclusion of this method makes it possible to timely, accurately and non-invasively assess the condition of the chewing muscles, while studying the size changes of which it is possible to adjust the treatment.