Started using this four months ago. Just returned from my delayed 6 month cleaning from my dental hygienist. She noticed a big change in the absence of heavy plaque. I tend to get a lot of build up. Had been using Sensodyne for my sensitive teeth. My sensitivity was gone and my teeth also look whiter. My hygienist wanted to know if I was doing anything different. I told her about Theraneem Toothpaste is the only change in my routine. I'm thinking of also adding the mouthwash to my daily routine.