Methods : 62 children ( 7 ~ 12 years old ) with ambushed supernumerary teeth , were examined by xray , and underwent odentectomies under basal anesthesia by using propofol and fentanyl 方法:對62例埋伏多生牙患兒( 7 ~ 12歲) ,經(jīng)x線檢查術(shù)前定位后,在異丙酚、芬太尼靜脈麻醉下實(shí)施牙拔除術(shù)。