That is not an accurate summation of the evidence. 11 publications were used to analyze the efficacy of dental floss, a some dozens more for other inter-dental

That is not an accurate summation of the evidence. 11 publications were used to analyze the efficacy of dental floss, a some dozens more for other inter-dental cleaning methods. https://onlinelibrary.wiley.com/doi/full/10.1111/jcpe.12363 https://onlinelibrary.wiley.com/doi/full/10.1111/jcpe.12363 Characterizing this as 'absence of evidence' is incorrect; the specific issue has been investigated by several independent investigators and consistently fails to find evidence of efficacy. Even with much higher sampling and statistical power, if any effect was observed, it would likely be well below anything that could justify flossing as a health recommendation, especially over IDBs.