洗牙 Traditional form: 洗牙 Pinyin (reading): xǐyá Definitions: (dentistry) to perform or undergo scaling (removal of dental plaque and calculus) Characters: 洗 - to bathe, to rinse, to wash 牙 - tooth, molar; fang, tusk; serrated Traditional characters: 洗 - to bathe, to rinse, to wash 牙 - tooth, molar; fang, tusk; serrated