The smart is smaller – yet bigger: developed for children over the age of 5, our CS smart children’s toothbrush looks just like the CS 5460 ultra soft, the version for grown-ups. Actually, it is somewhat smaller – yet in one respect somewhat bigger. The big version has 5,460 individual ultrafine Curen® filaments – at which the CS smart can only smile: it has an incredible 7,600 Curen® filaments and these are even finer, with a diameter of only 0.08mm. Hardly surprising that children aren’t the only ones who love the fineness of the CS smart. Dental professionals who tested them are simply delighted – and recommend adults to try them out, too.