If you are not skillful in flossing
you can start with the lower front teeth
When you have mastered the technique, try on the upper front teeth
then the lower molars ,and lastly the upper molars
It is difficult to master the skill of flossing all the adjacent tooth surfaces
It is not necessary to learn to clean all the adjacent surfaces at once
Practice flossing on one to two adjacent tooth surfaces in the beginning
When you have mastered the technique, move on to the other adjacent tooth surfaces
Until you have managed the skill on every adjacent tooth surface
then you should clean them orderly from one side to the other
and on both the upper and lower teeth
Do not omit any