Toothpaste is kind of like sandpaper. There are different levels of grittiness or abrasiveness. Do you know how helpful or harmful your toothpaste is?
There are two primary functions of toothpaste. The first is to remove stain without harmful abrasion to the teeth. The second function is to provide a highly polished, smooth surface which improves the appearance of teeth and health of the mouth.
With all the hundreds of toothpastes out in the market and with the ever expanding market of whitening products it is crucial to evaluate the toothpastes we are using. Many toothpastes and especially whitening toothpastes may be very abrasive, removing layers of enamel and dentin from your teeth.
The American Dental Association evaluates US commercial toothpaste formulas and assigns them an “abrasiveness rating” or “Relative Dentin Abrasivity” (RDA) number. The ADA will certify any toothpaste with an RDA of 250 or less, while the FDA seems to prefer a lower RDA of 200.
Knowing how abrasive your toothpaste is important if you have any recession, sensitivity, extensive wear, or notching on the fronts of your teeth. A lower RDA number is better if you have any of the previously mentioned symptoms. Please check our 12 Oaks Dental Toothpaste Abrasivity list!