Zoom is a bleaching process that’s specifically designed to lighten discoloration in enamel and dentin. Tooth discoloration is common, and can result from drinking coffee, smoking cigarettes or simply just daily wear and tear. As we get older, our teeth can also become darker with age. Zoom whitening is done through the use of a Zoom Advanced Power Chairside Lamp that activates the hydrogen peroxide in the whitening compound. When the hydrogen peroxide breaks down, oxygen enters the enamel and dentin and bleaches right at the stain, leaving the tooth’s structure unchanged.