In:
Maxillofacial Plastic and Reconstructive Surgery, Springer Science and Business Media LLC, Vol. 37, No. 1 ( 2015-12)
Abstract:
The aim of this study was to investigate the effect of a botulinum toxin type A (BTX-A) injection in the masseter muscle using electromyography (EMG) in an animal model. Methods Ten male adult ( 〉 3 months of age) New Zealand white rabbits were used. Muscle activity was continuously recorded from 8 hours before to 8 hours after BTX-A injection. The rabbits received unilateral BTX-A injections of either 5 units (group 1, n = 5) or 20 units (group 2, n = 5). Results The masseter muscle activity of the rabbits was significantly reduced immediately after BTX-A injection (P 〈 0.05 for both groups). When the results from group 1 were compared with those from group 2, only the peak voltage was significantly decreased in group 2 (P = 0.013). Conclusion Masseter muscle activity measured by EMG was immediately decreased after a BTX-A injection.
Type of Medium:
Online Resource
ISSN:
2288-8586
DOI:
10.1186/s40902-015-0010-8
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2015
detail.hit.zdb_id:
2815852-0
