Adaptive change of masseter muscle after the ostectomy of mandibular angle in rabbits / 中华整形外科杂志
Chinese Journal of Plastic Surgery
;
(6): 415-418, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-297131
ABSTRACT
<p><b>OBJECTIVE</b>To study the changes of masseter muscle after reducing the mandibular by measuring some relative index after ostectomy of the mandibular angle along arch line.</p><p><b>METHODS</b>Left mandibular angle ostectomy was performed on New Zealand female rabbits aged three months. The right was not operated as control groups. Five rabbits were examined at the following intervals 2, 4, 8, 12 and 24 weeks.</p><p><b>RESULTS</b>There were remarkable decreases in the experimented masseter muscle masses and the same type muscle fiber areas compared with the control group (P < 0.05). As for the fiber types, a decrease in type I fibers and an increase in type II fibers were noticed on operative side masseters (P <0.05). Sarcomere lengths in the operative side muscles were significantly reduced and showed statistical significance during first 4 weeks (P < 0.05), but there was no difference between the operative group and the control group after 8 weeks (P > 0.05).</p><p><b>CONCLUSIONS</b>The changes of masseter fibres show reconstruction of masseter muscle after mandibular angle ostectomy.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Período Pós-Operatório
/
Cirurgia Geral
/
Procedimentos Cirúrgicos Bucais
/
Mandíbula
/
Músculo Masseter
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Plastic Surgery
Ano de publicação:
2006
Tipo de documento:
Artigo
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