Amazon.com Review
Sonicare’s Advance 4100 (previously known as the PS-1) cleans with an ultrahigh-speed motion, leaving teeth feeling sparkling fresh. Extra-soft bristles let the user apply as much pressure as desired, making the Sonicare perfect for people with sensitive teeth, braces, and implants. While proven to be as or more effective than manual brushing for removing plaque and preventing gingivitis, the Sonicare Advance is also guaranteed to remove 80% of tobacco, tea, and co (more…)