I have several months are vibration toothbrushes in Anwändung. Especially on the go a very good alternative, since I do not have to take my globige electric brush. When properly Anwändung can perfectly massage at the correct pressure the gums. In addition, the interdental spaces are also cleaned thoroughly. On the environmental side, I can not understand why they called this brush as scrap. I have to dispose of it properly this also after about 3 months in the electrical (brush head or battery) as a conventional brush. Where is the difference?