This Pulsonic Slim toothbrush is the personal impression here still green dicher than those previously in use Oral-B Plaque Control with a round brush head. By maintaining the classic rectangular brush shape with wavy bristle length profile you can also reach interdental spaces very well and better than with a round rotating Bürstenkopf.Hier oscillates the brush head with a high rate of vibration back and forth and not only by the preening guiding the brush itself, but also by the high frequencies, a great cleaning effect. Every 30 seconds there is a minimum oscillation stop and after 2min. a slightly längere.So everyone can decide for themselves how long the cleaning will last. There is also next to the high vibrational level still a low-set stage. All in all very highly recommended !!