pericoronitis

例句：

1. 1.He developed pericoronitis after years of poor oral hygiene.
   由于多年不良的口腔卫生习惯，他患上了牙周炎。
2. 2.The dentist advised him to visit the clinic regularly for preventive care.
   牙医建议他定期来诊所接受预防性治疗。
3. 3.Pericoronitis is a chronic condition that requires regular dental check-ups and treatment.
   牙周炎是一种慢性疾病，需要定期进行牙齿检查和治疗。