Cleaning between your teeth helps remove a sticky film called plaque. Plaque that is not removed by brushing and cleaning between your teeth can eventually harden into a rough substance called tartar. Tartar collects along your gum line and can lead to gum disease. Once tartar forms, only your dental hygienist can remove it. https://www.greatsmiledental.com/2019/12/what-about-flossing/