calcic gingivtis

例句：

1. 1. The dentist removed the calcic gingivtis from his patient's teeth.
   牙医从患者的牙齿中取出了牙石。
2. 2.The patient's gums were severely inflamed due to the accumulation of calcic gingivtis.
   由于牙石的积累，患者的牙龈严重发炎。
3. 3.The dentist advised the patient to regularly brush and floss their teeth to prevent the formation of calcic gingivtis.
   牙医建议患者定期刷牙和漱口，以防止牙石的形成。