This is a thread like bundle of nylon strings that helps remove food between teeth. It can be flavored and also with wax added. In order to reduce gingivitis it is recommended to include flossing in addition to brushing your teeth daily.
You hold the floss between your fingers and slide the floss between your teeth. Some people have found this difficult to do. There are a variety of floss products to try.
Floss was invented by Levi Spear Parmly in 1815. Parmly practices as a dentist in New Orleans. Johnson & Johnson Corp. received the first patent for dental floss in 1898.