3+ Years Thoroughly Cleans Teeth & Gums Oral-B, The Toothbrush Brand More Dentists Use Themselves Worldwide. Fits all Oral-B Power Toothbrushes except: Oral-B Cross Action Power BatteryOral-B Battery DB3 Extra soft bristles are gentle on children's teeth and gums. Outstanding clean for teeth and gums. Raised row of blue bristles are designed for cleaning chewing surfaces.