METHODS:To fill the root canals of the primary teeth using two different materials,one group was filled with Ca(OH) 2 iodoform paste and the other was filled with ZOE iodoform paste.

• 方法 :用两种根管充填材料对乳磨牙进行根管充填 ,实验组用氢氧化钙碘仿糊剂根管充填 ,对照组用氧化锌碘仿糊剂根管充填 ,观察一年后的疗效。