The purpose of using dental floss is to remove dental plaque and biofilm from the surfaces of the teeth, especially the surface between two teeth. Because the spaces between teeth are usually so small, toothbrush bristles cannot reach in between the two tooth surfaces.
The suggested flossing regimen is in the morning after a meal, and at night before bedtime. No one has really studied daily versus weekly removal of plaque by flossing, but since plaque formation is a continuous process, daily removal is recommended for optimal health.
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To read what the experts say click here:http://www.livescience.com/40170-5-experts-answer-is-flossing-really-necessary.html
