For a pleasant and effective brushing experience, we recommend changing the head of your GUM SONIC DAILY sonic brush (formerly known as GUM ActiVital® SONIC) every 3 months or when the bristles begin to look worn. If you have had a flu or cold, it is also advisable to change the head after recovering This head has soft filaments, arranged at double levels and conical, finer at one end, for superior cleaning. These filaments allow you to reach hard-to-reach areas, removing 50% more plaque and penetrating up to 47 times further below the gum line. Main features: Compatible with GUM SONIC DAILY battery-powered sonic toothbrushes Soft conical filaments arranged at double levels for a deeper and more effective cleaning Removes 50% more plaque in interdental areas compared to a flat-cut manual toothbrush Easily replaceable to help reduce plastic waste Replace the head every 3 months For a superior anti-plaque effect, combine the sonic brush with the toothpaste and mouthwash.