Review on Superior Cross Action Replacement Toothbrushes for Optimal Dental Care by Yousef Dudley

they were much cheaper. Unfortunately, that's what happens when "you get what you pay for". When I put them on for the first time, I noticed that all the insides are plastic. It still seemed to be working fine, so I assumed it wasn't a big deal. It seemed cheap but everything worked fine. Fast forward a month and I noticed my head is no longer dizzy. I suspect that the internal plastic parts simply failed. I have no idea how long it was broken as it didn't really feel in the mouth. Then I changed it and became more aware. This time I only noticed the problem after a week! The head was still spinning and it seemed to be working fine. BUT, when you press on the head, it stops spinning and just vibrates. So you know there's pressure when you put it in your mouth to keep it from spinning. TL/DR: These things work really well. within a few days. After that, the interior is shot through and it only vibrates (without rotation).