Why is there teeth staining even though they brush and floss their teeth?

Family practice : Possibly from cola drinks , coffee. These stain teeth. Hard to prevent without whiteners.

Wrong assumption: You assume that brushing and flossing prevents staining.. Not true. That's like thinking that if you eat healthy foods, you will never get sick... Also not true. Speak to your dentist regarding whitening options for your stains.

Many reasons.: Teeth can appear to be "stained" for a variety of reasons. The color can be a natural genetic color. They may have absorbed a high level of Fluoride or a medication like tetracycline with being formed. If the stain can be removed by a professional cleaning, any brushing and flossing, while well intended, may not be frequent enough or utilizing an effective technique. Ask your hygienist

Because...: Not all stain is amenable to removal by toothpaste. Some satin is within the tooth some is on the outside . The best brand is rembrant to remove stain.

Many Reasons: Check with your dentist on the diet/foods/beverages you eat, do you use tobacco? Do you have intrinsic or extrinsic stains? Do you have developmental conditions such as amelogen. Imperfecta?

See a dentist: Have it looked at by a dentist. Then you will get the most accurate answer to your question. Since we can't actually see what you are referring to, we can only guess as to what you see. The cause will determine how to best prevent or eliminate\treat this issue.

Tooth "staining": 2 types. Extrinsic, from outside the tooth. Responds well to good oral hygiene and routine professional cleanings. Often caused by highly pigmented foods. The other kind is intrinsic, from inside the tooth, resulting in a natural darkening with age. Responds well to Dentist directed brightening procedures. Talk your problem over with your Dentist for an individualized answer.