Oral B is the world's number 1 brand used by dentists worldwide which brings to you and your family revolutionary brushing solutions with best in class technology to ensure you and your family get healthier and cleaner mouth. Oral B cavity defense 123 black helps avoid cavities with its superior cleaning action versus ordinary brushes. Oral B cavity defense 123 black has unique end rounded bristles to ensure they are soft on the gums. The unique comfort grip is specially designed for your needs. The brush has a tongue cleaner for fresher breath.