Tooth floss removes the food remaining between the teeth, yet this is not its only purpose. It also removes dental plaque and bacteria under the gums which can not be removed by using a toothbrush only. If dental plaque is left untreated, it builds up and leads to gum inflammation as well as cavities.
I can not floss my teeth because I have an orthodontic appliance
Even though having an orthodontic appliance makes teeth flossing difficult, this should by no means discourage you! On the contrary, take your time to maintain regular and thorough oral hygiene in order to protect your oral health. If you are not flossing while having an orthodontic appliance, the dental plaque accumulated between your teeth and gums will certainly worsen the state of the newly straightened teeth. In this case, we are talking about a special tooth floss used for orthodontic cases so called Super Floss. Ask your orthodontist how to ease the use of dental floss or which interdental brushes are suitable for you.