Methods The experiment group (Cortisom ol group) including 70 teeth of 62 patients and the control group (ZOE gro up) including 40 teeth of 38 patients were assigned randomly.

• 方法 门诊就诊的根充术适应证患者 10 0例随机分为实验组 (Cortisomol组 ) 62例、 70颗牙和对照组 (ZOE组 ) 3 8例、 40颗牙。