METHODS FOR DETERMINING THE POSITION OF MOTOR AND TRIGGER POINTS OF THE CHEWING MUSCLES IN DYSFUNCTION OF THE TEMPOROMANDIBULAR JOINT

Анотація

Abstract. Introduction. According to arious publications, from 40 to 60% of the population has various
diseases of the temporomandibular joint (TMJ), most of them - functional disorders. A special place in the
violation of the temporomandibular joint belongs to the increase in the tone of the masticatory muscles and their
dysfunction.
The aim of the study. To develop a method for diagnosing the condition of the masticatory muscles in TMJ
dysfunction and assess its clinical effectiveness.
Materials and methods. During 2018–2019, 35 people with dysfunctional TMJ were under observation.
Patients were divided into three groups: I – neuromuscular (20 people), II – occlusal-articulatory (10 people),
III – mixed type (5 people). Clinical examination was conducted using a device, designed to provide effective
electromyographic examination of the masticatory muscles.
Results. It was found that MP AMM on the side of TMJ pathology is shifted upwards compared to MP symmetrical
side, with the greatest shift was observed in patients with occlusal-articulatory and mixed pathologies, which
indicates prolonged muscle spasm and the need for further rehabilitation.
Three weeks after orthopedic and conservative treatment, it was found that the MPs were shifted down and
inwards of the AMM relative to the initial one, and after 3 months the MPs on the pathology side were at the same
level as the MPs of the symmetrical side.This fact of our observation may indicate muscle relaxation and positive
dynamics of intramuscular adjustment. These results of inspection can testify to a long spastic condition of AMM
and confirm efficiency of complex treatment of this group of patients.
Conclusions. Thus, with the help of the developed diagnostic device not only the initial position of MP and TP
muscle was investigated, but also the estimated dynamics of intramuscular adjustment during treatment.