“Not Painful at All -- Not Incredibly White Now Either.”

I have to chuckle at the post above me because I too canceled my appointment a few months ago because of these reviews on this site. I already have very sensitive teeth, but started using Sensodyne for the past 6 months and decided to give it a go since my teeth were less sensitive now. My dentist had a Christmas special and I'm able to spread out a payment plan in his office and I really needed something done. I got it done today. It was not as bad as I thought it would be. Towards the middle of the second 15 minute treatment it started to tingle and feel sensitive, but it was nothing like when I would let ice touch my teeth. And the results are amazing. I'm very happy to see a huge difference.My dentist gave me some extra stuff for sensitivity just in case. The only downfall is that I have to miss out on my favorite colorful foods for the next few days so I won't stain them while healing, but that's a booster to help me stay on my diet lol. I would recommend this to anyone who is not happy with dull teeth. I can't stop looking in the mirror smiling. This is very worth it. If you have problems sitting for an hour, just bring a headset and listen to pass time. I brought my MP# player and it flew on by !