Why Are My Teeth Yellow? Causes & How to Whiten Them Safely

Frequently Asked Questions (FAQ)

Does professional teeth whitening hurt or cause permanent sensitivity?

Professional whitening treatments are designed to protect enamel and minimize nerve irritation. While temporary mild sensitivity to hot or cold temperatures can occur during or immediately after treatment, it usually resolves within 24 to 48 hours. Your dentist can also apply desensitizing agents or adjust gel strength to keep you completely comfortable.

How long do professional teeth whitening results last?

Results generally last anywhere from six months to two years, depending on your lifestyle and diet. Frequent consumption of dark liquids, tobacco use, or poor oral hygiene will shorten the longevity of your results. Regular touch-ups using custom take-home trays help maintain a bright shade over time.

Can teeth whitening lighten dental crowns, veneers, or fillings?

No. Bleaching agents only work on natural enamel. Synthetic materials used for crowns, porcelain veneers, dental bonding, or tooth-colored fillings will not change color during a whitening treatment. If you plan to replace older restorations, it is best to whiten your natural teeth first so the new restorations can be matched to your brighter shade.

Why are my teeth still yellow even though I brush every day?

Brushing removes soft plaque and surface food particles, but it cannot reverse deep intrinsic stains inside the tooth or fix yellowing caused by worn enamel exposing natural dentin. Additionally, brushing alone cannot remove hardened tartar. Regular professional checkups and tailored whitening treatments are required to clear deep-set discoloration.

How often should I get a professional dental cleaning?

Most patients benefit from a professional cleaning every six months. These visits allow your dental hygienist to remove surface stains, plaque, and tartar that daily brushing misses, keeping your enamel clean and your gums healthy. Some patients with a history of gum care needs may require more frequent visits as recommended by their dentist.

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