dirty gingivitis

例句：

1. 1. He was diagnosed with dirty gingivitis and needed to see a dentist.
   他被诊断出患有牙垢炎，需要去看牙医。
2. 2. The dentist advised him to brush his teeth twice a day to prevent the condition from worsening.
   牙医建议他每天刷牙两次，以防止病情恶化。
3. 3. The patient's gums were inflamed and had a foul odor, indicating that he had dirty gingivitis.
   患者的牙龈发炎并有异味，表明他患有牙垢炎。