AIM:To explore the relationship between the functional recovery of facial muscles and the changes of the structure of mitochondria and succinate dehydrogenase (SDH) of oris muscles after different degree of denervation.

• 目的:探讨不同程度面神经失神经支配后口轮匝肌线粒体结构、琥珀酸脱氢酶(SDH)的变化与面肌功能恢复的关系。