Objective: To look for an effective clinical therapeutical method for oral and maxillofacial salivary myoepithelioma.

探寻手术治疗涎腺肌上皮佳方法。

To compare the effect between general anesthesia by nasal cavity blindly intubation with and without topical anesthesia through thyrocricocentesis in maxillofacial operations.

比较环甲膜穿刺否对全鼻腔盲探插管影响。