The invention includes methods of cleaning an oral surface, maintaining oral health and/or increasing oral health. Such methods encompass contacting an oral surface with a primary oral care composition at least once daily, and contacting the oral surface with a periodic oral care composition at least once within a period of about 42 days. The periodic oral care compositions suitable for use in the method comprise a first abrasive having an Einlehner hardness of greater than about 5 mg loss per 100,000 revolutions and a second abrasive having an Einlehner hardness of less than about 5 mg loss per 100,000 revolutions. In the periodic oral care compositions, the ratio of the first abrasive to the second abrasive is about 1:1.6 to about 1.6:1. The periodic oral care compositions are characterized by a pellicle cleaning ratio of greater than about 100 and a radioactive dentin abrasion of less than about 200. Additionally or alternatively, the methods may include those where the second abrasive comprises silica and has an oil of absorption of greater than about 90 cm3/100g and/or an Einlehner hardness of less than about 5 mg loss per 100,000 revolutions. The ratio of the first abrasive to the second abrasive may be about 1:1.6 to about 1.6:1. The total amount of the first and second abrasives present in the oral composition may be greater than about 25 by weight of the composition and/or the oral composition has a pellicle cleaning ratio of greater than about 100 and a radioactive dentin abrasion of less than about 200.本發明包括清潔口腔表面、維持口腔健康及/或增進口腔健康之方法。此等方法包含以一種主要口腔保健組成物接觸口腔表面每日至少一次，及在約42天之期間內以定期口腔保健組成物接觸口腔表面至少一次。適合用於本發明之定期口腔保健組成物包含一第一研磨劑，具有艾氏(Einlehner)硬度每100,000轉數大於約5毫克損失；及一第二研磨劑，具有艾氏硬度每100,000轉數小於約5毫克損失。於定期口腔保健組成物中，第一研磨劑對第二研磨劑之比例為約1：1.6至約1.6：1。定期口腔保健組成物之特徵在於薄膜清潔比例大於約100及輻射活性牙本質磨耗低於約200。此外，諸方法包括那些其中第二研磨劑含有矽石且具有油吸值大於約90立方公分/100克，及/或艾氏硬度每100,000轉數小於約5毫克損失者。第一研磨劑對第二研磨劑之比例為約1：1.6至約1.6：1。第一和第二研磨劑存在於口腔組成物中之總量，以組成物之重量計大於約25%，及/或口腔組成物具有薄膜清潔比例大於約100及輻射活性牙本質磨耗低於約200。
