The most important step in ensuring gum health is regular tooth brushing. However, the surfaces between the teeth are not cleaned very effectively with a toothbrush. The most effective way to clean the surfaces where the teeth come into contact with each other is to use dental floss.
The point to be careful about when using dental floss is not to let the floss touch the gum too much and to clean only the enamel surface. It is sufficient to use dental floss once a day after brushing your teeth in the evening.