root canal reamer

例句：

1. 1.The dentist used a root canal reamer to remove the infected tooth.
   牙医使用根管钻来移除感染的牙齿。
2. 2. The patient needed a root canal reamer for his recent extraction.
   病人需要根管钻来他的最近一次拔牙。
3. 3. The dentist used a root canal reamer to clean out the root canals of the extracted tooth.
   牙医使用根管钻来清理被取出牙齿的根管。