periodontitis

常见例句

• Has a dentist ever told you that you have gingivitis or periodontitis?
  有医生告诉过您，您有牙龈炎或者牙周炎吗？
• Chronic infections, such as periodontitis, can play a direct or indirect role, they wrote.
  他们在文章中写到，慢性感染，例如牙周炎，在发病过程中起到了一个直接或间接的作用。
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