The New Zoom2 from extreme makeover dentist Bill Dorfman was released a few months ago. The system is being marketed as a much improved version of the original zoom light. The bleaching gel is now a calcium phosphate based gel. The makers of Zoom2 claim that it is 33% faster than the original with results showing an average of 8 shades in 45 minutes.
Many dentists are noticing that patients are experiencing less sensitivity with Zoom2 than with Zoom1, but they also claim results are a minor improvement over the older system. There are no official reports to support this.