Is using dental floss necessary? In the US the government has quietly dropped the recommendation, based on scientific evidence showing no benefits. And now the NHS is set to review their own guidelines. Our view is that there is a place for the use of dental floss so long as it is used correctly. The technique is very important and the use of dental floss in tight spaces, where interdental brushes cannot fit without causing damage, can be very useful. Interdental cleaning is very important because it removes food debris from the in between areas of the teeth which can prevent gum disease. Most people find using dental floss tedious and often get the technique wrong causing gum damage. The use of interdental brushes is gaining in popularity as they are more user friendly.