Teeth whitening is one of the most requested cosmetic dental treatments — and one of the most misunderstood. With so many over-the-counter products and conflicting information online, it can be hard to know what actually works.
How Teeth Whitening Works
Professional whitening uses peroxide-based bleaching agents that penetrate the enamel and break down stain molecules. The concentration used by a dentist is significantly higher than store-bought products, which is why professional results are faster and more dramatic.
Will It Work on All Stains?
Whitening is most effective on surface stains caused by food, drink, and smoking. It is less effective on intrinsic stains caused by trauma or certain medications. Crowns, veneers, and bonding will not whiten. Your dentist can assess whether whitening is the right solution for you.
Is It Safe?
When performed by or under the supervision of a dentist, whitening is safe. Some patients experience temporary tooth sensitivity, but these side effects are typically mild and short-lived.
How Long Do Results Last?
Results can last anywhere from several months to a couple of years, depending on your diet and habits. Avoiding staining foods, not smoking, and good oral hygiene will help maintain your results.