PROBLEM TO BE SOLVED: To provide a dentifrice composition which has moderate polishing property and high cleaning property and shows both, during its use, excellent toothbrushing feeling (brushing sense) and absence of stimulation to gingiva.SOLUTION: The dentifrice composition includes: (A) a synthesized amorphous aluminum-bonded silicate which contains aluminum, as Al2O3, in a content of 0.5-7.5 mass% of SiO2 and OH groups in a content of 2.0-3.5 mass% of SiO2 and (B) granular zeolite with an average particle size of 150-800 &mum and an average collapse strength of 15-100 g/piece. The dentifrice composition is practically harmless to teeth, has moderate polishing property and high cleaning property without damaging teeth, and shows both, during its use, excellent toothbrushing feeling (brushing sense) and absence of stimulation to gingiva.COPYRIGHT: (C)2011,JPO&INPIT【解決手段】(A)アルミニウムがAl2O3としてSiO2に対し0.5~7.5質量%の範囲で、かつOH基量がSiO2に対し2.0~3.5質量%である合成無定形アルミニウム結合ケイ酸塩、及び(B)平均粒径が150~800μm、かつ平均崩壊強度が15~100g/個の顆粒ゼオライトを含有してなることを特徴とする歯磨剤組成物。【効果】本発明の歯磨剤組成物は、歯牙に対する為害性がほとんどなく、歯牙を損傷させない適度な研磨性と高い清掃性を有し、かつ使用中に優れた刷掃感(ブラッシング感覚)と歯肉への刺激のなさが両立する。【選択図】なし