My 30% of gum erosion causes from Sensodyne. I had never ever gum problem before. Last four years, I have been using the Sensodyne with out any worry. That cause a big impact on my teeth. Four of my teeth got more than 50% gum erosion. Two teeth are extracted. Don't try sensodyne, Don't get experience like as me.
Please use plan tooth paste, no more sensodyne.