Good to hear some opinions on that. My old dentist was a once a year visit and didn't fix anything that wasn't broke. Only 1 filling (and that was due to a chip, but ended up getting drilled out pretty big due to underlying damage). He retired and sold me off to a new place which I get a random doc every time I'm there.
Since I've been there (3 years?) I've had my old dentist's filling re-done (I'm OK with that, it was silver which is prone to cause cracking, and now I've got white filling which is supposed to be better, but more on that later), another small cavity filled (seems legit, I was eating a lot of junk then), and 3 small spots lightly drilled and filled (basically they were little non-cavity pockets, the old dentist would always "hmmm" at them and pass them over, the new one really wanted to touch them up and it seemed reasonable to me). Sealing has always been recommended at the new place, but I've passed it over. They insist on 6 month checkups and lots of x-rays. Not a fan of either of those, but I've been living with it.
I'm thinking about changing dentists now though. Last night I had a checkup/cleaning that went pretty well until the end. Then, new random doc tells me how he really wants to convince me to have my wisdom teeth pulled (a couple occlusions that don't bother me at all, have to grind my jaw sideways to make them hit), tells me I really should do sealant, and complains about the filling that they just did less than 3 years ago. As I'm walking out they hand me a date for my next checkup (6 months) and a slip for my next "service". Apparently he decided I *need* to have something done next month. I don't know what, he never said. Receptionist said she'd call with an estimate. I went along so far since I'm curious to know what he wants to do that he didn't see fit to tell me about... I'm betting sealant, not sure if it's worth it though. On the fence about doing it if that's the case. If he wants me to pay to redo the filling they just did, or pull those teeth, I'm definitely out of there and will be looking for a new dentist.