Oral-B® Pro Health™ Advanced Medium Toothbrush -1. Improves oral health in 2 weeks*. Individual flexing sides! Oral-B - the brand more dentists use themselves worldwide. How does advanced Pro-Flex™ work Advanced Pro-Flex has flexing sides that adjust to the unique curves and contours of your teeth, including gumline, for a superior clean vs. a regular manual toothbrush. Because of its flexibility, Advanced Pro-Flex is gentle on gums too. Also try Crest™ Pro-Health™ toothpastes. *by reducing gingivitis in a short term clinical trial. P&G. For more oral care information, visit www.oralb.com or call 1-800-56-ORALB (1-800-566-7252). www.pg.com. ©2016 P&G.