My younger sister recently visited and she used to whiten her teeth fairly frequently. When she was here she complained of tooth sensitivity and bleeding gums. So I agree with the OP.

Great research, Jacqua.

This will hopefully save a lot of people from ruining their teeth.

Baking soda is the very best. Takes a few days to see dramatic results, just like the bleaches, but the shine and brightening start the first time you brush with it. It's cheap, and can (only occasionally) be mixed with peroxide for a little extra dazzle.

Peroxide should be used seldom and sparingly, however. Baking soda can be used every day and contains no flouride.

Never really gave a crap about my looks, especially having pearly white teeth. I drink so much tea, it'll be yellow no matter what.

I'm 100% against fluoride. My dad and mom raised me on non fluoridated toothpaste, and I am 26, been cavity free my whole life. Is there a connection? I bet so! I also love sweets.

I love the use of baking soda. It's dry shampoo, too! I always love those handy old country time kitchen remedy books.

Want to get rid of a wart? Make a paste of one aspirin and less than 1/8 teaspoon water. Put it on the wart. Then duct tape it over. Keep it on for an hour or try to keep it on all night, every night, for 1 month. My planter wart on my foot took 2 months though. That bugger will fall off. It's so much cheaper than blowing $200 to have the doc freeze it off, and cheaper than those $20 kits. It really works.