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

比较行环甲膜穿刺表对全鼻腔盲探管的影响。

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

探寻手涎腺肌上皮瘤的最佳方法。