Zoom Whitening: The Zoom Whitening procedure is simple and painless. It begins with a short preparation to isolate your lips and gums. We then apply the Zoom Whitening Gel, which is activated by a specially designed light. Teeth typically become at least six to ten shades whiter, sometimes more. A five-minute fluoride treatment completes the procedure. In most cases, teeth get even whiter the first few days after the procedure.