Necmettin Erbakan Üniversitesi Diş Hekimliği Fakültesi Dergisi
Yazarlar: Ahmet Ertan SOĞANCI, Yaşar Bedii GÖYENÇ
Konular:Diş Hekimliği
Anahtar Kelimeler:Malocclusion,Angle Class II,Electromyography,Swallowing
Özet: Objective: The aim of this study is to determine the changes in the electromyographic (EMG) swallowing pattern during the functional treatment of patients with Class II malocclusion with activator appliance. Material and Methods: 26 patients, (16 girls and 10 boys, mean age 12.1) with Class II malocclusion, at the pubertal peak period who were treated with activator appliance in the functional treatment, were selected for the study. The activity values of the right-left anterior temporal, masseter, and anterior digastric muscles during the swallowing of own saliva of patients were performed with the EMG device and bipolar surface electrodes. Electromyographic measurements were obtained using special software and recorded as microvolt (μv) values. EMG recordings were taken at the beginning of treatment (T1), and 1 week (T2), 1 month (T3), 3 months (T4), and 6 months (T5) after using of activator appliance. Results: According to the electromyographic findings during swallowing statistically significant decrease in the activity values of the right and left anterior temporal muscles in T2 measurements(p <0.05), and a statistically significant increase in the activity values of the right anterior temporal muscles in the T5 measurements(p <0.05). No significant changes were observed in the activity values of the right and left masseter muscles during the T1-T5 periods. Significant increase in activity values of left anterior digastric muscles in T2 measurements (p <0.05), and activity values of right and left anterior digastric muscles showed progressive and significant decreases(p <0.01),(p <0.001) in T3, T4, T5 measurements. Conclusion: At the beginning of functional treatment, especially high electromyographic activity values of the anterior digastric muscles, were progressively and significantly decreased due to the decrease in the overjet by functional treatment and the abnormal electromyographic swallowing model was normalized.