How long will bleaching last?

Although effective in 96% of cases, bleaching is not a permanent procedure. It's important to remember that the whitening effects are not meant to last for ever. Results usually last for a couple of years but this varies from person to person. Studies show that only half of the people who achieved a lighter shade still had whiter teeth six months later. Your habits such as smoking, eating, and drinking will still influence the color of your teeth. However, whitening toothpaste may help the effect last. Bleaching may not be recommended in case of extremely sensitive teeth. This procedure is less likely to succeed on tetracycline stained teeth, and it will definitely not work on false teeth, crowns, veneers or fillings (including tooth-colored fillings). Contact your doctor for specialized tips on how to keep your teeth white.