I wish more people knew how amazing these toothbrushes are. My 10 year old had his dentist check up the other day and it was great! No cavities ! This is the only toothbrush he will use and this was the 2nd appointment he’s had since using them, he’s always had such anxiety when it comes to the dentist but the last 2 appointments because there was no problems really helped out and now he doesn’t mind !! Thank you so much for making such an amazing product.