A pearly-white smile is beautiful to look at and can greatly improve self-confidence. Many people are opting for the Zoom! Whitening System for fast, safe and effective teeth whitening. Zoom! combines the newest advances in dental technology with proven chemical formulas that ensure the whitening experience is comfortable and satisfying. There are many reasons why teeth become stained or discolored, including tobacco use, and drinking dark liquids such as red wine, coffee, tea, and cola. However, the natural aging process and prescription medication use can also cause yellowing and graying.