I had recently attended an exhibition of maternity and baby products where I came across this unique product. According to the company representative it is a toothbrush made for babies and can be used upto the age of 8 years and is designed by a dentist in China.
It is made of a soft plastic material and has a small ring to put it into your finger. It can be used as a teether for younger babies along with being a toothbrush. A little toothpaste can be applied above and below on the bristles.