牙斑 Traditional form: 牙斑 Pinyin (reading): yábān Definitions: dental plaque Characters: 牙 - tooth, molar; fang, tusk; serrated 斑 - freckled, mottled, spotted, striped Traditional characters: 牙 - tooth, molar; fang, tusk; serrated 斑 - freckled, mottled, spotted, striped