retromolar

例句：

1. 1. The dentist performed a root canal on my tooth and removed the infected part.
   牙医给我的牙齿做了根管治疗，并取出了感染的部分。
2. 2.After the surgery, I had to wear a temporary denture until my new teeth grew in.
   手术后，我必须戴一副临时假牙，直到我的新牙齿长出来。
3. 3.The patient was advised to avoid hard foods for a few days after the procedure.
   患者在手术之后被建议避免吃硬食物几天。