dentine layer

例句：

1. 1. The dentist carefully removed the damaged tooth to save the patient's nerve.
   牙医小心翼翼地移除了损坏的牙齿，以保存患者的神经。
2. 2. The dentist advised the patient to avoid hard foods for a few days until the dentine layer healed.
   牙医建议患者几天内避免吃硬食物，直到牙釉质层愈合。
3. 3. The dentist performed a root canal treatment on the patient's tooth to prevent further damage.
   牙医为患者的牙齿进行了根管治疗，以防止进一步损坏。