PROBLEM TO BE SOLVED: To provide a dental composition which is further excellent in esthetics and has a high bleaching effect and prolonged effect.SOLUTION: The invention relates to a tooth bleaching agent comprising peroxide and the source of carbonic acid. The examples of the source of carbonic acid include potassium hydrogen carbonate, ammonium carbonate, ammonium bicarbonate, ammonium carbamate, potassium carbonate, calcium carbonate, sodium carbonate, magnesium carbonate, lithium carbonate, and sodium bicarbonate. The examples of the peroxide include hydrogen peroxide, urea peroxide, or peroxides generating hydro-peroxyl radical, hydroxy radical, or oxygen radical in solution.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】より審美性に優れ,高い漂白効果及び持続効果を有する歯科用組成物の提供。【解決手段】過酸化物と,炭酸源とを含む歯牙漂白剤。炭酸源の例は,炭酸水素カリウム、炭酸アンモニウム,炭酸水素アンモニウム,カルバミン酸アンモニウム,炭酸カリウム,炭酸カルシウム,炭酸ナトリウム,炭酸マグネシウム,炭酸リチウム,及び炭酸水素ナトリウムであり、過酸化物の例は,過酸化水素,過酸化尿素,又は水溶液中でヒドロペルオキシルラジカル,ヒドロキシラジカル又は酸素ラジカルを発生する過酸化物である歯牙漂白剤。【選択図】なし
