[_ah]

I'm very similar. I have excellent oral health... brush 2x/day, don't floss. Two interesting datapoints:

1. I changed jobs a few times, and for various reasons I neglected to see a dentist for 10 years. When I finally went back, had perfect oral health and no cavities. My hygienist still remembers me because this event was so far outside her experience + expectations.

2. My wife had "normal" tooth decay problems throughout her life, until we started dating, at which point she's had no further cavities. ;)

To answer the normal questions: I don't do anything particularly special with my diet except a general avoidance of sweetened drinks - no soda pop, no sweeteners in my coffee.

If anyone wants to swab my mouth and pay me a small licensing royalty for commercialization please get in touch. Heh.