Read Edit View history 牙周病 yázhōubìng periodontitis Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 牙周病 · yázhōubìng · periodontitis 2026/03/04 牙周病 yázhōubìng periodontitis periodontitis (gum disorder) 保持口腔卫生可以预防牙周病。 noun created sense Mar 4, 2026, 02:25 AM