The old joke about the dentist asking a patient when was the last time he flossed, only to hear the reply, “Dude, you were there!” might not be as funny as it first seems. According to the American Dental Association, interdental cleaners such as floss are an essential part of taking care of your teeth and gums. Cleaning between teeth removes plaque that can lead to cavities or gum disease from the areas where a toothbrush can’t reach. Also, interdental cleaning is proven to help remove debris between teeth that can contribute to plaque buildup. As inconvenient as daily flossing can be, a water flosser makes it easier. That, in turn, makes it more likely you’ll do it regularly. Here are some features to think about the next time you’re shopping for a water flosser.