The science behind flossing your teeth is more than removing the piece of kale from your afternoon salad out of your teeth , it is disease prevention. Along brushing with a fluoride toothpaste twice daily, flossing is known to decrease bio-film, plaque, and debris accumulation. Naturally in the human body good and bacteria exist. Our mouths are home to about 700 species of microbes. Streptococcus mutans is a microbe that causes caries and tooth decay. Porphyromonas gingivalis is also a bacterium that causes periodontal disease. Once there is an imbalance of these bad bacteria and the good bacteria in your mouth, you are susceptible to getting cavities, tooth decay, gingivitis and periodontal disease. Flossing is ensuring the disruption of the daily colonization of bacteria on and between your teeth.