Who did ever suggest flossing to prevent cavities? That would be bananas. As for gingivitis (and its potential to cause periodontitis, which is the real culpri

Who did ever suggest flossing to prevent cavities? That would be bananas. As for gingivitis (and its potential to cause periodontitis, which is the real culprit) - flossing is a low-risk and low-gain recommendation, when looking at a population. On an individual level, for a patient with early periodontitis and tight-fit teeth, it can be the best recommendation ever. There is evidence suggesting that when properly applied (i.e. by a professional), flossing works great for preventing gingivitis.