Electromyographic parameters in patients with a lack of space in the dentition

Klimov A. G., Rozhkova M. G., Lepilin A. V., Kondratyuk A. A., Fishchev S. B., Orlova I. V.

Introduction. Electromyography (EMG) of the masticatory muscles allows us to determine the degree of adaptation of patients to the new conditions of the masticatory-speech apparatus in the process of orthodontic and orthopedic treatment of patients with a lack of space in the dentition [4]. Goal. To study electromyographic parameters of the masticatory muscles proper in patients with crowding of teeth in the anterior part. Materials and methods. 42 patients aged 21-35 years were examined (26 women, 16 men) with crowding of teeth in the anterior part of the upper and lower jaws, which were treated with removable and non-removable orthodontic devices, the quality of treatment was assessed by changing the EMG indicators of plaster models and a computer tomogram. The comparison group consisted of 45 people aged 21-35 years (25 women, 20 men) with intact dentition and physiological types of bite. Results. EMG indicators of all groups of patients before treatment were lower than those obtained in the comparison group. Conclusions: EMG indicators of all groups of patients before treatment were lower than those obtained in the comparison group, and after treatment, the indicators approached the values of the comparison group.

Keywords:crowding of teeth, plaster models, dentition, orthodontic treatment.