Abstract: Facial paralysis is a kind of facial nerve injury caused by a variety of reasons. Facial paralysis of the lower face is usually characterized as deviated mouth and abnormal smile. The therapeutic objectives of facial paralysis of the lower face are facial symmetry, smile restoration, and reconstruction of facial expressions. Nerve anastomosis, cross facial nerve transplant and muscle transfer are the methods for dynamic reanimation that commonly used, and they were reviewed in this paper.

Key words: Facial paralysis, Lower face, Dynamic reanimation