gingival convexity

例句：

1. 1. The dentist advised him to visitthe gingival clinic for acheck-up.
   牙医建议他去看齿龈诊所做一次检查。
2. 2. The patient's gingival bleeding was aconcern for the doctor.
   患者的牙龈出血让医生感到担忧。
3. 3. The gingival tissueis sensitive to changes in diet and oralhygiene.
   牙龈组织对饮食和口腔卫生的变化很敏感。