Most dentists would welcome it. Routine fillings aren't huge money-makers for them (which is why they focus so much on cosmetic dentistry these days). There are a lot of tooth/mouth related diseases beyond simple decay... they'll be fine.
On the other hand it might be hard to convince patients to come back every 6 months if decay were less of a problem. That seems to be when they talk to patients about about cosmetic and other more expensive procedures.
