I'm 27 and have generally had good dental health in the past, but I've been more than a year overdue for a cleaning and general checkup. I finally went in (to a new dentist, at that) about two weeks ago. For the past 8-12 months I've been using almost no "conventional," chemical-laden toothpaste and instead been using Tooth Soap (found at Amazon) almost exclusively. I occasionally use some whitening conventional toothpaste just to keep the teeth a bit whiter, but typically I only do this about once per week.
Even without any "almighty" floride, the dentist said I have immaculately clean and strong teeth. They took x-rays and said the bone looks great.
I didn't tell them about my primal efforts, or my natural toothpaste, but I'm going to keep doing things the natural way for the next six months and see what he says at the next checkup. If things are still really good, I'm tempted to enlighten him and see what he says.
Anyway, just take a look at some of the chemicals in your traditional toothpastes. Nasty, nasty stuff you're putting in your mouth!
28 y/o male, 6 feet tall
Starting weight, 1/1/2011: 215 lbs. -- Current weight: 179 lbs.
Starting waist size: 38 in. -- Current waist size: 32 in.