Effects of a botulinum toxin type A injection on the masseter muscle: An animal model study / 대한악안면성형재건외과학회지
Maxillofacial Plastic and Reconstructive Surgery
;
: 10-2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-102958
ABSTRACT
BACKGROUND:
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.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Toxinas Botulínicas Tipo A
/
Modelos Animais
/
Eletromiografia
/
Músculo Masseter
Limite:
Adulto
/
Animais
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Maxillofacial Plastic and Reconstructive Surgery
Ano de publicação:
2015
Tipo de documento:
Artigo
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