My dentist told me urgently advised instead flossing the interdental brushes to use (which he had also sold with the same). Since I do not really pleasant find the Frickelei with flossing and also the waste mountain produced thereby do not want to zoom in, I have this set with 8 different brushes in 0.05 mm increments (?) Ordered. Ideal for once to figure out how the individual interdental spaces are designed. Easy to use, hard to reach regions an extension adapter is included. The thinnest, very filigree brushes now hold quite amazing long, despite the fact that they are highly flexible. The cleaning effect of the brushes I would classify as a dramatically higher than flossing, pursue just once after normal floss-use with the brush - you will be amazed! Cleaning goes mE also considerably gentler than flossing. Busts are very easy to clean hygienically under running warm water. If you then its 2 - 3 matching sizes (more I think nobody needs) has found, can be seen on other tests do without any problems in the future!