dental debris

例句：

1. 1.The dentist was cleaning the patient's teeth with a special tool.
   牙医用一种特殊的工具清洁病人的牙齿。
2. 2.The patient had to wait for several hours before the dental debris could be removed.
   病人需要等待几小时才能清除牙科碎片。
3. 3.The dentist warned the patient about the dangers of dental debris in their mouth.
   牙医警告病人他们的嘴里有牙科碎片的危险。