Read Edit View history 齿龈炎 chǐyínyán gingivitis Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 齿龈炎/ 齒齦炎 chǐyínyán gingivitis noun 定期刷牙可以预防齿龈炎。 Edit Delete References Add reference No references for this word.