牙粉 Traditional form: 牙粉 Pinyin (reading): yáfěn Definitions: tooth powder Characters: 牙 - tooth, molar; fang, tusk; serrated 粉 - powder, flour, cosmetic powder; plaster Traditional characters: 牙 - tooth, molar; fang, tusk; serrated 粉 - powder, flour, cosmetic powder; plaster