Pam, I've been bleaching off and on for about 6 or 7 years. I went to the dentist and had the trays made. They give you gel syringes and you put the gel in the trays and wear them. My teeth are pretty sensitive too but they also give me a flouride gel that eases the nerve pain. I use that prior to a bleaching.

After the first application, I didn't have to repeat for about two years. Now, I just use a syringe every six months or so. My teeth are as white as they will ever get, most of the time. I'm also a coffee drinker.

My sister had the trays made, only to discover that her teeth are so sensitive, she can never bleach without extreme discomfort. It's not for everybody.

Both of my kids use the strips you can buy and they both love them. They both have white teeth.

Good luck with it and enjoy the wedding!!