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瘤的最佳法。

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

较环刺表麻与否对全麻鼻腔盲探插管的影响。