The abrasion value, also called RDA value, is 21 for Denttabs, which stands for very low abrasiveness. Silica and small amounts of the gentle surfactant sodium lauroyl glutamate ensure the low abrasiveness and an equally desirable reduced foaming. But that doesn't mean we have a lower cleansing effect. In a clinically controlled study, three differently abrasive toothpastes were compared: A whitening toothpaste with an RDA of 162, a tooth gel with an RDA of 0, and Denttabs with an RDA of 35 (at the time, a value of 35 was estimated; in 2021, an RDA of 21 was calculated for Denttabs by the consumer organization Consumentenbond from the Netherlands). The cleaning performance achieved across all measured tooth surfaces averaged just over 50% for all three toothpastes (toothpaste: 50.9%, Denttabs: 54.4%, tooth gel: 51.6%). Denttabs thus achieved the best cleaning performance. A common perception is that plaque can be cleaned away with a high level of abrasiveness. The study proved the opposite.