“The orig brush was very comfortable but I had it for years & did not like the fact that I couldn’t replace it. I was excited that the new Bright Smile had replaceable brush but they aren’t very comfortable. I’m having a hard time, my gums in front are really sore so I’ve only used it 2x. The clear whitener is like water. I can’t use it with my toothpaste. I’m not sure there’s a solution, thank you Catherine”