tooth sector

例句：

1. 1. The dentist examined the patient's teeth sector and recommended a cleaning.
   牙医检查了病人的牙齿扇区，并建议进行清洁。
2. 2.During the exam, the dentist checked the patient's tooth sector and found no signs of decay.
   在检查过程中，牙医检查了病人的牙齿扇区，没有发现蛀牙的迹象。
3. 3. The dentist advised the patient to visit their office regularly for check-ups and maintenance of their tooth sector.
   牙医建议病人定期访问诊所，以维护他们的牙齿扇区。