"Repair & Protect Protects against excessive brushing The new Repair&Protect toothbrush was designed for people with sensitive teeth. Gum recession and enamel loss can be caused by excessive brushing which, over the course of tempo, can lead to exposed dentin and sensitive teeth. The new Sensodyne Repair&Protect toothbrush has bristles that flex when in contact with teeth and gums to help offer you una gentle cleaning. The outer bristles have tapered filaments that make the soft tips even more flexible to help protect you from excessive brushing."