My husband and I both suffer from teeth sensitivity. It is the worst sensation- the feeling of cold air brushing over your front teeth. We tried prescription strength toothpaste paired with regular floss, Crest Whitening Mouthwash, but it did not alleviate our symptoms. I was told by my dentist to switch mouthwashes to ACT Restoring because it restores enamel that is weak and will alleviate sensitivity and use Glide Comfort Floss. Boy, was she correct. After just a few days of using the mouthwash I no longer feel that uncomfortable sensation on my teeth. I also am no longer needing prescription strength toothpaste. I now use this mouthwash twice daily and floss once a day, in combination with Sensodyne's Repair and Protect toothpaste. My gums do not bleed when I floss and I don't dread flossing. Glide floss goes easily between even the tightest teeth and has a lovely mint flavor that helps freshen breath at the same time. Changing the floss and mouthwash have made a huge improvement and now I can eat hot or cold foods without wincing in pain.