This new method, however, uses a microscopic friction analysis, which is quicker and more reliable. While the existing approach relies on what’s called a radioactive abrasion value (RDA value)-which uses machines to continuously brush radioactive dentin samples, then assesses the damage-some experts say the method is flawed because it’s time consuming and often yields inconsistent results. That’s why researchers in Germany developed a new method to test toothpastes for their levels of abrasiveness. Too bad there’s a downside to that minty-fresh feeling: Some toothpaste can actually eat away at the enamel of your teeth. Not to mention that plaque, coffee stains and evidence of a midday chocolate break aren’t exactly attractive.
Yah, you brush your teeth because mom (and your dentist) always told you to.
