![Manual Toothbrush vs. Electric toothbursh | SiOWfa15: Science in Our World: Certainty and Controversy Manual Toothbrush vs. Electric toothbursh | SiOWfa15: Science in Our World: Certainty and Controversy](https://sites.psu.edu/siowfa15/wp-content/uploads/sites/29639/2015/10/toothbrush_vs-300x225.jpg)
Manual Toothbrush vs. Electric toothbursh | SiOWfa15: Science in Our World: Certainty and Controversy
Oral-B - Oral-B electric toothbrushes remove 100% more plaque vs manual toothbrushes and comes with a 2 minute timer, helping you brush like a dentist recommends. Say NO to harsh and excessive
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