Relative Dentin Abrasivity (RDA) is a measure of the erosive effect of abrasives in toothpaste, which is used to determine the toothpaste's abrasiveness. The RDA value ranges from 0 to 250, with lower values indicating lower abrasiveness
. Toothpaste with RDA values in the 0-70 range is considered low abrasive, while those with values in the 71-100 range are medium abrasive, and those with values in the 101-150 range are highly abrasive
. Toothpaste with RDA values in the 151-250 range is considered to be beyond the harmless limit
. Some toothpaste products and their RDA values include:
- Essential Oxygen BR Organic Toothpaste: This toothpaste has an RDA value of 12, making it the lowest abrasion toothpaste available
- Family Dentist Tree Rochester MN recommends using toothpaste with RDA values in the 0-70 range, such as those in the blue section of the RDA Value List
To test the abrasiveness of toothpaste at home, you can use a piece of tin foil and apply toothpaste with light pressure. Rinse the toothpaste off the foil under running water and check for any scratches remaining on the surface
. This method can help you compare the abrasiveness of different toothpaste products.
