You got me curious, so I looked at the supposedly healthy toothpaste I'd been using and it does have glycerin. Eco-dent has sodium lauryl sulfate. And most other toothpastes of course have fluoride. Now a guy could spend months researching these chemicals and make an educated guess as to whether it's a good idea to use, but I'd rather just not put stuff in my body that isn't food and just go with the simplest formula I can find that doesn't sound like it includes chemicals anyone's been screaming about.
I found this tooth powder that I'll probably order. Salt, baking soda, prickly ash bark, and peppermint oil. http://www.luckyvitamin.com/item/itemKey/74704
And on the topic of personal hygiene, here's a mineral salts deoderant rock that I've been using and seems to workhttp://www.luckyvitamin.com/item/itemKey/57886
Webmaster of http://www.iblindness.org
"I conceive that the great part of the miseries of mankind are brought upon them by false estimates they have made of the value of things." - Benjamin Franklin