Is it a toothbrush or a teether? The Baby’s 1st Toothbrush is both a toothbrush and teether in one. We like to call it “The Chewable Toothbrush.” It is made of 100% FDA approved food grade silicone, and babies love to chew on it to relieve teething pain. As they chew on the brush they’re also brushing. The tiny bristles clean their mouths while introducing them to brushing at an early age.