Facts and numbers to support what may be the potential for permanent injury of damage to gum tissue, resulting in one of the most intense forms of pain people are forced to endure of exposed nerves in teeth. The company’s who distribute these products have included pressure sensors to other similar power toothbrushes to protect this soft tissue. This safety issue becomes clear after understanding the median speed (7, 600 motions per minute) and operating action (spinning-rotating) of these certain types of power toothbrushe... read full review »