PROBLEM TO BE SOLVED: To provide a dentifrice composition capable of effectively suppressing an increase in viscosity over time and ensuring good shape retention even after storage.SOLUTION: According to the present invention, there is provided a dentifrice composition comprising the following components (A), (B), (C), and (D): (A) thickening silica having an oil absorption amount of 150 to 500 mL/100 g in amount of 2% by mass or more and 15% by mass or less； (B) a water-soluble calcium salt in amount of 0.002% by mass or more and 0.1% by mass or less in terms of calcium atoms； (C) a water-soluble polyvalent metal salt other than a calcium salt； and (D) water in amount of 10% by mass or more and 50% by mass or less. In the dentifrice composition, the molar ratio ((C) mol/(B) mol) of the component (C) to the component (B) is 0.2 or more and 10 or less, and the content of the abrasive silica having an oil absorption of 50 mL/100 g or more and less than 150 mL/100 g is 10% by mass or less.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】経時的な粘度上昇を有効に抑制し、保存後においても良好な保形性を確保することのできる歯磨組成物に関する。【解決手段】次の成分（Ａ）、（Ｂ）、（Ｃ）、及び（Ｄ）； （Ａ）吸油量１５０～５００ｍＬ／１００ｇの増粘性シリカ ２質量％以上１５質量％以下、 （Ｂ）水溶性カルシウム塩 カルシウム原子換算量で０．００２質量％以上０．１質量％以下、 （Ｃ）カルシウム塩以外の水溶性多価金属塩、及び （Ｄ）水 １０質量％以上５０質量％以下を含有し、成分（Ｂ）に対する成分（Ｃ）のモル比（（Ｃ）モル／（Ｂ）モル）が０．２以上１０以下であり、かつ吸油量が５０ｍＬ／１００ｇ以上１５０ｍＬ／１００ｇ未満の研磨性シリカの含有量が１０質量％以下である歯磨組成物。【選択図】なし
