Dental Nation
Question and answer

How to remove stains between teeth

Stains between teeth may need interdental cleaning, professional polishing, or treatment of decay, depending on their colour and surface.

The short answer

Stains between teeth may need interdental cleaning, professional polishing, or treatment of decay, depending on their colour and surface. A dark mark that does not wipe away should be examined before using whitening products.

Dental educational image for this page

What is the direct answer?

What does this question mean?

The contact area between teeth traps plaque and pigments from food, drinks, or tobacco. Brown or black areas can also be calculus or caries, while a grey change may reflect a filling, trauma, or internal tooth discoloration rather than a surface stain.

What can you do next?

Clean between the teeth with floss, tape, or an interdental brush that fits without force, and brush the outer and inner surfaces with fluoride toothpaste. A dental professional can remove calculus and polish external stain; whitening changes tooth colour but does not remove decay or calculus.

When should you seek dental care?

Book an examination for a rough, sticky, painful, or enlarging mark, bleeding around one contact, or sensitivity to cold or sweets. Prompt care is important if the area is a hole, the tooth is fractured, or swelling develops.

What should you ask the dentist?

Ask whether the mark is external stain, calculus, decay, or internal discoloration and whether an image is needed. Ask which interdental size fits and whether cleaning, filling, polishing, or whitening addresses the actual cause.

Frequently asked questions

Can floss remove a black stain?

Floss may remove trapped debris, but a fixed dark mark may be calculus or decay and needs examination.

Are stains between teeth always cavities?

No. They can be pigment, calculus, or debris, but only an examination can distinguish these from caries.