I'm 73 years old and had significant gum and teeth with problems. Brushing my teeth twice a day, flossing twice a day and mouth wash twice a day, wasn't getting it done. Even went to the dentist every 4 months instead of 6 months for cleaning. Tried an electric toothbrush, and still wasn't achieving my goal. Finally, I bought a Waterpik system. Finally, I achieved my goal. The dentist gave me a "10" after using the Waterpik. You'll see a change in a week. I was amazed with the difference!