Teeth whitening is a cosmetic dental procedure that lightens teeth and helps remove stains and discoloration. It is one of the most popular dental treatments for enhancing a smile.

The process involves applying a bleaching agent, usually containing hydrogen peroxide or carbamide peroxide, to the teeth. This agent breaks down stains on the enamel and dentin layers, making teeth appear brighter.

Candidates include individuals with healthy teeth and gums who want to remove stains caused by food, drink, smoking, or aging. It is not recommended for those with severe dental problems, such as cavities or gum disease.

The cost can range from

$700 to $1,000, depending on whether it's done in-office, at-home, or with over-the-counter products. Professional in-office treatments are usually more expensive but offer faster and more effective results.

Results can last from several months to a few years, depending on diet, oral hygiene, and lifestyle habits like smoking. Maintenance treatments may be required to prolong the effects.

Common side effects include temporary tooth sensitivity and gum irritation. These usually subside within a few days after treatment.

Before whitening, it's best to have a professional dental cleaning to remove plaque and tartar. Avoid staining foods and drinks, and follow any specific guidelines provided by your dentist.