How long your teeth stay white following whitening depends on a few factors. The three most important factors are how you go about whitening your teeth, how much stain-heavy food and/or drink you consume after whitening your teeth, and how well you take care of your overall oral hygiene.

Professional in-office teeth whitening provided by your dental professional will be the most long-lasting option. A professional whitening can last between 12 and 24 months. The effects of an in-office whitening procedure are immediate, you should notice whiter teeth as soon as your dental professional completes the whitening.

This look can fade over time, and while your teeth may not have stains anymore, they can still develop them.
Any stain-heavy food and drink will also limit the lifetime of a teeth whitening procedure. Tea, coffee, and red wine all have the potential to stain your teeth. Color-heavy foods can also stain your teeth, and should be avoided if you want to maintain the looks of your pearly white teeth.

Extensive research and clinical studies indicate that whitening teeth under the supervision of a Zoom trained dental professional not only gives you the whitest teeth, it's also proven very safe. Zoom is the only whitening formula that contains relief ACP, which actually gives you greater lustre and protects enamel. As a result, the Zoom teeth whitening treatment has no adverse effect on existing restorations (fillings or crowns) nor does it rub away, soften, damage or weaken the enamel.