bristles frayed pretty quickly [SEP] i really wanted to love this product my child does not brush thoroughly and i thought that anything that covered the entire surface area of the tooth would be much better than her regular toothbrush she liked it a lot but i am not sure that she was using it in a way that really covered all of her teeth after a short while the bristles became frayed we reluctantly switched back to her old toothbrush i am not sure if it was improving her brushing or not and the price was much higher than the regular brush