Neuromuscular adaptations with flexible fixed functional appliance--a 2-year follow-up study.
Autor: | Sood S; Department of Orthodontics and Dentofacial Orthopedics, H.P. Government Dental College & Hospital, 171001, Shimla, H.P., India. drsankalpsood@gmail.com, Kharbanda OP, Duggal R, Sood M, Gulati S |
---|---|
Jazyk: | English; German |
Zdroj: | Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie [J Orofac Orthop] 2011 Nov; Vol. 72 (6), pp. 434-45. Date of Electronic Publication: 2011 Nov 30. |
DOI: | 10.1007/s00056-011-0048-x |
Abstrakt: | Aim: To evaluate long-term neuromuscular adaptation with the flexible fixed functional appliance. Patients and Methods: Electromyography (EMG) was performed on 15 young, growing females with Class II Division 1 malocclusion treated with a flexible fixed functional appliance. Bilateral EMG activity from the anterior temporalis and masseter muscles was monitored longitudinally to determine changes in posture, swallowing, and maximum voluntary clenching during a 24-month observation period. Results: There was a significant decrease in EMG activity during saliva swallowing (p < 0.05) and maximum clenching (p < 0.05 at 3 months and p < 0.01 at 1 month after treatment); this persisted for up to 1 month but gradually returned to pre-appliance levels near the end of 6 months. It remained stable from then on until the end of the observation period (24 months). Conclusion: The anterior temporalis and masseter muscles clearly responded to appliance therapy. The neuromuscular adaptation documented after 6 months of treatment remained stable over a 24-month observation period. |
Databáze: | MEDLINE |
Externí odkaz: |