transient facial paralysis
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tran·si·ent fa·cial pa·ral·y·sis(transshĕnt fāshăl păr-ali-sis)
Short-term loss of motor activity of a muscle innervated by the facial nerve because of injury or disease involving such nerve or muscle. A common cause is incorrect local anesthetic placement about the facial nerve that took place during an inferior alveolar nerve block.