Angle floss
Guide dental floss gently against each tooth in a C shape, then slide it below the gum edge without snapping or forcing it.
The short answer
Guide dental floss gently against each tooth in a C shape, then slide it below the gum edge without snapping or forcing it. Clean both sides of every tooth, including the back teeth.
What is the direct answer?
What does this question mean?
The useful angle is not a fixed measurement. It means wrapping the floss around one tooth so its side contacts the tooth surface and the floss reaches just under the gingival margin.
What can you do next?
Use a clean section of floss, ease it through the contact, curve it around one tooth, and move it up and down with short strokes. Repeat against the neighboring tooth, then use a new section as you move around the mouth.
When should you seek dental care?
Ask for an examination if floss repeatedly catches, shreds, causes significant pain, or produces bleeding that does not settle with gentle daily cleaning. A tight or open contact may need treatment or a different interdental aid.
What should you ask the dentist?
Ask which floss, threader, tape, or interdental brush fits each space and whether a filling, crown, calculus deposit, or gum pocket is affecting access. Request a demonstration using your own tooth spacing.
Frequently asked questions
Should floss go under the gums?
It should enter the shallow space beneath the gum edge gently, without pushing into tissue or causing trauma.
Why do my gums bleed when I floss?
Bleeding can occur with inflamed gums, plaque, calculus, or trauma from technique; persistent bleeding deserves an examination.