The two most common problems facing me every day in general dental practice are enamel loss caused by attrition and toothbrush abrasion. The first treat with a nocturnal bite raising appliance the second I treat by prescribing Radius toothbrushes. I find that even so called medium toothbrushes are still too hard for most patients. Once they start with a RADIUS, the sensitivity disappears, and the gingival condition improves dramatically.
I also find that a RADIUS brush lasts for over a year and so represents a good value for money. I have a practice of 22,000 patients and about a third of all adults are strongly recommended to use your excellent brush.