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About Philips Sonic Electric Toothbrush 1100 Series White Sonic technology combined with our brush action gently removes plaque up to 3x better than a manual toothbrush. Why its special Sonic technology Pressure sensor Quad Pacer and Smart Timer Slim ergonomic design Other Details Built-in pressure sensor protects your teeth & gums
Especially, ultrasonic toothbrushes appear to remove dental plaque effectively and can considerably improve oral health.
