Dentists recommend replacing toothbrush heads every 3 months and more often after illnesses Be prepared with this 3pack of genuine replacement heads Our highquality bristles are cut interdental style perfect for reaching nooks and crannies between teeth Super soft PBT nylon bristles help clean and brighten young smiles without damage Our community of dental professionals help us design refine our kids toothbrush and toothbrush heads This order contains three replacement heads enough to hold you over for 9 months