But those are adults who are on top of their game, and have a few decades of very little decay, if any. It's not that I don't think the cleaning and checkup would do them a little good, it's just not marginally that much different at 12 mo instead of 6 mo in these limited cases.

I cannot imagine the thought process in having an 8yo scale back the prevention. That's just when all of the permanent enamel is breaking through, but hygiene is terrible.

Whether that recommendation is just coming from an outlier doc or is systemic to Willamette (who owns their own clinics, and not a typical PPO), I have no idea.