齿槽

例句：

1. 1. The dentist needs to drill a new tooth in the patient's mouth.
   牙医需要在病人的嘴里钻一个新牙。
2. 2. The child was playing with his teeth, showing his excitement.
   孩子正在和他自己的牙齿玩耍，表现出他的兴奋。
3. 3. The dentist advised the patient to avoid hard foods for a week after the procedure.
   牙医建议患者在手术后一周避免吃硬食物。