Compact headmedium texturefor teeth amp gums your dentist will be proud ofreduces plaque up to 48 more effectivelythe hyg ionic is clinically proven by studies at universities in the usa and japan to remove plaque up to 48 more effectively than ordinary manual toothbrushingiontophoretic action improves the effectiveness of fluoride in toothpaste helping to reduce hypersensitivity in teethif allowed to build up plaque can lead to cavities gum