The best electric tooth brush

http://www.youtube.com/watch?v=_gbuRVmoP8U

 What is the best electric tooth brush? I believe Filips Sonicare is the best. The experiment is comparison among Filips Sonicare, Braun Oral-B, and Panasonic Doltz. Filips Sonicare looks the most powerful.
 Another research ranked Sonicare HX6920/02 as AA, Doltz EW-DE40 as A and Braun Oral-B 4000 D275365X as B. They were reviewed in 4 factors, effectiveness in removing plaque, easiness in handling, noisiness of vibration, and battery’s endurance.

http://www.shouohkai-dental.com/english.html

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