For decades dentists have recommended flossing as an essential part of oral hygiene. But how useful is it really? An investigation by the Associated Press has revealed there is insufficient proof to back up this claim. The US Department for Health and Human Services and Agriculture admitted in a letter that the benefits of flossing had never been properly researched. A British dentist at the University of Birmingham also said there is only “weak evidence” to suggest flossing is beneficial.
Should you floss or not? Study says benefits unproven
