Abrasive system for oral care compositions

Details Abrasive system for oral care compositions Abrasive system for oral care compositions

A - Human Necessities

61

K

A61K 8/25 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2631738

Oral compositions comprising a first and a second abrasive are provided. The first abrasive preferably has an Einlehner hardness of greater than about 5 mg loss per 100,000 revolutions, and the second abrasive preferably has an Einlehner hardness of less than about 5 mg loss per 100,000 revolutions. A ratio of the first abrasive to the second abrasive ranges from about 1:1.6 to about 1.6:1, and the first and second abrasives are preferably present in the oral composition at an amount of about 13% to about 21 % by weight, respectively. The pellicle cleaning ratio of the oral composition is greater than 100 and the radioactive dentin abrasiveness is preferably less than 200, and in certain embodiments, preferably less than about 175. Methods of using the oral compositions are also provided.

L'invention concerne des compositions orales comprenant un premier abrasif et un second abrasif. Le premier abrasif a de préférence une dureté Einlehner supérieure à environ 5 mg de perte pour 100 000 révolutions et le second abrasif a de préférence une dureté Einlehner inférieure à environ 5 mg de perte pour 100 000 révolutions. La proportion du premier abrasif sur le second abrasif va d'environ 1:1,6 à environ 1,6:1 et le premier abrasif et le second abrasif sont de préférence présents dans la composition orale en une quantité d'environ 13 % à environ 21 % en poids, respectivement. Le taux de nettoyage de la pellicule acquise de la composition orale est supérieur à 100 et l'indice d'abrasion de la dentine (Radioactive dentin abrasiveness, RDA) est de préférence inférieur à 200 et, dans certains modes de réalisation, de préférence inférieur à environ 175. L'invention concerne également des procédés d'utilisation des compositions orales.

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