Objective: To discuss the effect of trigeminus nerves on the phenotype of MHC after facial paralysis;
Methods: The morphologic changes were observed by histochemical methods, the phenotype of MHC by SDS-PAGE, the tension of contraction and the threshold value of electrical stimulation by electrical physiological methods;
Results: Trigeminus nerves could delay the decomposing of MHC, maintain the tension of contraction and the threshold value of electrical stimulation;
Conclusion: Sensory nerves could delay the muscular atrophy, and should be repaired when we repair motor nerves.