The electromiography (EMG) allows to learn a functional condition of muscles under different physiological and pathological changes. Clinical and electromiographical examination of 20 teenagers at the age of 13–16 years with a distal bite (II class, І subclass according to Angle, investigated group) and 20 teenagers at the age of 13–16 years without anomalies of a bite (control group) was carried out.
120 EMG are obtained in all. The statistical analysis of 320 values of parameters is conducted.
It is shown, that frequency of EMG fluctuations in teenagers with a distal bite exceeds frequency of EMG fluctuations in teenagers without anomalies of a bite. Side by side with this the average amplitude of fluctuations in teenagers without anomalies of a bite exceeds that one in teenagers with a distal bite. The analysis of the counted parameters (EMG capacity and integrated plane) shows that both of parameters are authentically higher in teenagers without anomaly of a bite.