The Nûby™ beginner toothbrushes promote the early development of good dental hygiene. The bristles are designed especially with a child in mind. The result of this special attention to detail is a product your child can use with ease. The first step allows parents to brush and massage gums gently, while the second massages and helps clean during the teething process. Ask your doctor or dentist about when to switch to the soft nylon brush (step 3) once teething begins .