Methods 797 patients received anesthesia by treating with 1.5% novocaine, or 0.1% tetracaine,or 1% lidocaine, or 0.2% bupivacaine.The effect of clinical anesthesia was observed.

• 方法 采用1．5%25奴夫卡因、0．1%25丁卡因、1%25利多卡因、0．2%25布比卡因用于临床麻醉观察其效果。