Zoom teeth whitening process - VIDEO In this video, dental assistant Michelle explains what Zoom teeth whitening is. If you are considering Zoom, then basically you need to go see your general dentist, and you’ll be able to determine if you are a candidate for Zoom in office bleaching and basically you would go to your dental office, sit in chair - it is about and hour to two hour process, and what it is, Zoom whitening is light activated bleaching threatment. It’s main component is hydrogen peroxide, the hydrogen peroxide is activated with the Zoom light that your dentist has in ...