Dentists, at least from what I've observed, seem to kit out their offices once, when they initially hang out their shingle and then use it until they retire wit

Dentists, at least from what I've observed, seem to kit out their offices once, when they initially hang out their shingle and then use it until they retire with only minor upgrades. So if you go to a younger dentist, they have new stuff, if you go to an older dentist they'll have old stuff. It might be different if you go to a dental franchise where a parent company owns and manages equipment, but most dental offices still seem to be one or a few practitioners that own the office around here.