Review on Upgrade Version: 4 Pack Micro Nano Extra Soft Toothbrush for Sensitive Teeth or Gum, 20000 Bristles, Effective Cleaning (Pink, Green, Blue, Flesh) by Everett Underberg

First I bought the Micro Nano Toothbrushes and when I came back to buy more they ran out. I looked around and found these. I'm just as happy with them. I like the small head size and the spaces between the bristles which seem to allow them to dry better. I love this toothbrush. Recommended by my sister who has sensitive gums. My gums aren't particularly sensitive, but I like to use a soft brush because a soft one is better for the enamel. However, I often buy a medium brush because soft brushes wear out quickly and don't clean well. But these are the softest bristles, and it's not just because they're so thick that they lay down. I love brushing my teeth with these brushes. You just feel good. My teeth are so clean and smooth now, even next to the gums. Last time I brushed my teeth, they barely found anything to brush off.