Flossing can be used to remove food debris, tartar and plaque from between teeth. Dental floss is generally harmless, but when floss is used improperly, it can damage the gums or gingival papillae. 1. Interdental space refers to the gap between teeth, also known as the neighboring gap, is easy to form plaque, food debris and soft tartar easy to hide the place. It is difficult for a toothbrush to reach the gap, and it cannot clean the food debris and soft dirt. At this time, you can use dental floss to clean and remove the soft scale, food debris and plaque in the gap between neighboring teeth. 2. Dental floss can be made of cotton, hemp, silk, nylon, waxed or unwaxed floss. Waxed floss is easy to remove food debris and soft tartar, and unwaxed floss can remove plaque. 3. Dental floss is generally harmless, but because the first time users are not skilled in the use of the gums and gingival papillae will be damaged due to excessive force. For more information about flossing, please consult your dentist.