My son, he's in May 2008, three years had at first afraid of the noise that makes the handpiece! After about 2 weeks we had, my wife and I said that the teeth are much better dressed and that he should wait for the music which then comes! Mouth, head back and one of us to him, cleaned his teeth! He was naturally skeptical but after the first music he really wanted to know OBs are other tunes, and thus the beginning of a new brushing technique was created! Since he is very much like brushing teeth and we are really happy to have made that decision! We, the parents also have each a Braun Oral B and are delighted with the results, as well as no tartar and a significantly better mouthfeel than the conventional toothbrush!