Oral-B Disney Frozen Replacement Toothbrush Heads Pack of 4. The Oral-B Stages Power Kids replacement toothbrush heads, featuring characters from Frozen, are made for the mouths of younger brushers, with a design inspired by the cleaning power of professional dental tools. The bristles and size are ideal for the hands and mouths of children and feature Frozen characters your kids will love. The Oral-B Stages Power replacement electric toothbrush heads, featuring Frozen, are specially made for kids to provide an overall healthy tooth-brushing experience. The extra-soft bristles are gentle on tender gums and smaller bristles provide extra-soft brushing while longer centre bristles are ideal for cleaning chewing surfaces. This is an ideal choice for the smaller, but growing mouths of your own budding heroes. Dentists recommend replacing your toothbrush every three – four months (or sooner if bristles are worn).