sensitivity during and after whitening has always been a draw back from whitening for many patients. the sensitivity associated with whitening comes from movement of fluids in the dentinal tubbles. the faster these fluids move the more pain and sensitivity associated with the procedure. now we can control the movement of these dentinal fluids by controling the intensity of the light used during a ZOOM whitening procedure. the newest philips ZOOM light offeres up to eight shades whiter in just 45 minutes of treatment with virtually no sensitivity. please visit our office or website at serenefamilydentistry.com for more information about this fantastic new ZOOM light.