I'm sorry to hear that you had such a painful experience with Zoom Whitening, but I hope you're relieved to know that there is something even better that doesn't cause nearly the same tooth sensitivity. I recommend take-home teeth whitening trays to my patients. In order to get this, you have to go to your dentist and request it. He/She will make custom fitting whitening trays for you and give you whitening gel that you must add to the tray every night before bed. You will wear the trays only when you sleep; the top one should be worn at night for a week and the bottom at night for a week. By the end of the two week time period, you should notice a huge difference. My patients actually prefer take-home whitening over Zoom whitening, most of the time. Good luck and I hope this helps. Follow me if you have more questions.Sarah Thompson, DMD